Trends, changes in data center HVAC design

Several trends are pushing the HVAC systems in data centers in different directions

Webcast: Pairing VRF with applied HVAC solutions

Attend this webcast on July 27, 2022, to learn how Linear Expansion Valve (LEV) Kits help pair VRF with applied HVAC solutions for more flexibility to meet a building’s specific load, airflow, and application requirements.

Applied versus packaged rooftop units — does it matter?

The line between applied and packaged rooftop units is sometimes blurred, and ultimately the needs of the project will dictate whether applied or packaged should be recommended and specified based on the wide array of available options

Understand the physics of air

How does air density affect fan performance?

Ancient to modern air movement

Air movement has been manipulated for centuries. What’s the history?

Your questions answered: How to incorporate controls into HVAC systems

HVAC systems and their controls have continued to advance

Diagnosing health care air handling systems

Designing air handling systems, especially for health care facilities, can be quite challenging given myriad constraints and choices for both the air handling units and their companion distribution networks

Technology drives HVAC, plumbing changes in K-12 school

Updates, COVID and tech trends are shifting the way K-12 schools are designed, specifically the HVAC and plumbing systems

Dusting off the conference shoes

In-person events have come roaring back, and it seems manufacturers barely missed a beat

Top 5 Consulting-Specifying Engineer articles: March 18-24, 2022

Read the best articles from the past week. Electrical power quality, lighting controls, evaporative cooling options, office buildings and single-pair Ethernet.

Webcast: How to incorporate controls into HVAC systems

Attend this webcast on March 31, 2022 to learn about HVAC systems

Office building HVAC design has changed

COVID, employee well-being and indoor air quality issues have all changed the way office building HVAC systems are designed

How to know which evaporative cooling option is right

When considering evaporative cooling, understand the general applications and high-level engineering considerations

Air quality data opportunities

Clear skies in these uncertain times

Consulting-Specifying Engineer January/February 2022 issue

Smart material switches between heating and cooling in minutes

Deployed on roofs or facades, passive technology could greatly reduce HVAC energy consumption in buildings

How are hospital HVAC systems being designed differently?

Hospitals and health care facilities are changing and their HVAC systems must transform with them

Variable Refrigerant Flow (VRF/VRV) for HVAC Systems

While a conventional direct expansion (DX) split system AC is simple to install, the system has evolved.

Geo-exchange heat pump systems: A logical system choice for zero-carbon high performance buildings

Learn why Geo-exchange systems might be the right solution for your building

Top 5 Consulting-Specifying Engineer articles: November 12-18, 2021

Read the best articles from the past week. Product of the Year winners, IAQ versus IEQ, BAS replacements, commissioning giants and power factor correction.

COVID, sustainability drive college HVAC design

Colleges and universities have been sustainability trendsetters over the past several years. COVID-19 has required designers to think differently, especially about HVAC systems

IAQ versus IEQ: What’s the difference?

Indoor air quality and indoor environmental quality are two terms that are easily confused because their acronyms are similar and concepts overlap

Cold storage design considerations

While the COVID-19 pandemic contributed to the pervasiveness of online grocery shopping, the cold storage landscape was already rapidly evolving as consumer behaviors and the push toward sustainability were driving a need for change.

Consulting-Specifying Engineer October 2021 issue

Webinar recap: Is your building ready for back-to-school?

As schools across the country have kicked off the 2020-2021 school year, there has been a wide variety of strategies and arrangements implemented from fully remote learning to hybrid schedules to fully in-person classrooms.

Guidance on evaluating and preparing a facility’s HVAC systems for the return to the office

Bipolar ionization is a cost-effective option to improve indoor air quality

Consulting-Specifying Engineer most-viewed articles, September 2021

Read the best articles in September 2021 including: Product of the Year finalists, NFPA 99, pandemics and building design, cooling plant optimization and more.

Consulting-Specifying Engineer most-viewed HVAC articles in 2021

Read the best articles about HVAC published in the last year including: Choosing between an ECM and VFD, COVID-19 mitigation, hospital ventilation design, smart building design and more.

Consulting-Specifying Engineer September 2021 issue

Read the September 2021 issue to learn about the 2021 MEP Giants, using BIM in a pandemic and getting boiler design right.

How to prepare a facility to be IAQ centric

Indoor air quality is key in buildings, and there are several ways to measure and improve upon it

Webinar on refrigerants and global warming

This webinar focused on building cooling systems and their impact on the environment.

Wildfire smoke mitigation strategies in buildings

Planning, architectural, HVAC, control and in-room or portable appliance strategies for limiting wildfire smoke from entering into buildings

Top 5 Consulting-Specifying Engineer articles: August 27 to September 2, 2021

Read the best articles from the past week. Chiller energy optimization, pandemics and building design, chilled water plant performance, Product of the Year finalists and life safety requirements.

Five ways to maintain HVAC efficiently

Prepare HVAC systems to keep up with cooling demand during the summer. Five ways to keep an HVAC system running efficiently are highlighted.

Your questions answered: HVAC systems that achieve indoor air quality

Matt Short responded to extra questions from this July 27 webcast

Top 5 Consulting-Specifying Engineer articles: July 30 to August 5, 2021

Read the best articles from the past week. Cooling plant optimization controllers, transformer protection, mergers and acquisitions, Product of the Year finalists and LED lighting advancements.

How to design government buildings: HVAC systems

In this Q&A with multiple experts, learn how to design HVAC and plumbing systems government, state, municipal, federal, correctional and military buildings

How pandemics affect HVAC in building design

COVID-19 affected engineers and building professionals’ designs in many ways, including HVAC and plumbing

Survey finds majority of companies used subpar HVAC solutions in response to COVID-19

Nearly 60% of companies spent over $500,000, 26% spent more than $5M to upgrade, install HVAC systems.

Top 5 Consulting-Specifying Engineer articles: June 4-10, 2021

Read the best articles from the past week. Specifying HVAC systems, designing standby power systems, power for fire/life safety systems, 40 Under 40 winners, and modeling electrical systems.

Specifying HVAC systems in manufacturing, warehouse buildings

Warehouse, manufacturing and logistics facilities need engineering experts to specify various HVAC and plumbing systems

3D walkthrough of the Michigan State University mechanical room

Michigan State University expands Life Science Building

Finding comfort in early childhood classrooms: consider radiant floor heating

Radiant floor heating systems have progressed in their longevity and reliability

Indoor air quality and airborne transmission of COVID-19

Adjustments to a building's mechanical system could slow the spread.

Exposure to POE oil can be disastrous to HVAC plastic piping

Substance can lead to environmental stress cracking.

Bipolar ionization and COVID-19

Air filtration units are movable and offer a level of visual comfort to occupants and there are a variety of different personal environment systems capable of providing an enhanced level of safety.

Integrated building controls for universities

The U services group is using integrated building energy management to bring University of Minnesota buildings online for efficiency and safety.

How solar heat gain affects building design

The SHGC of glazing is a tiny number in a sea of values to consider, but it has broad impacts on HVAC systems, lighting design, the appearance of the building, façade costs and the health and comfort of occupants.

How to design data centers: HVAC systems

An expert panel provides engineering and design tips for HVAC systems in this Q&A

Know when, how to specify a rooftop unit

There are some key components to recognize when designing air-cooled rooftop units

Best practices for engineering government buildings: HVAC and plumbing

Designing utilities, public works, airport, mass transit, transportation or other government projects is a big task. Learn how to design mechanical systems in government buildings.

Top 5 Consulting-Specifying Engineer articles: April 2-8, 2021

Read the best articles from the past week. COVID-19 and HVAC equipment, NFPA 72-2022, K-12 schools, IAQ and health concerns and NEC electrical grounding.

Top 5 Consulting-Specifying Engineer articles: March 26 to April 1, 2021

Read the best articles from the past week. COVID-19 and HVAC equipment, NFPA 72-2022, NFPA 101 and COVID-19, effective COVID-19 mitigation and NEC electrical grounding.

How HVAC will change due to COVID

Mechanical engineers and controls experts shared details about HVAC and BAS in a research study

Consulting-Specifying Engineer most-viewed articles, March 2021

Read the best articles in March 2021 including: Effective COVID-19 mitigation, NFPA 72-2022, VRF systems, NFPA 101 and more.

Consulting-Specifying Engineer March 2021 issue

Read the March 2021 digital edition to learn about air handling systems, emergency lighting designs, NFPA 72 and more.

Enhancing learning in K-12 schools: HVAC systems

Students and teachers benefit from many air quality and HVAC technologies in K-12 schools

How critical space testing works in health care

Critical space testing has been shown to be an effective way for health care facility managers to understand and manage the operation of their HVAC systems

Safely reopening schools with AB 841

Assembly Bill 841 (AB 841) is one of many ways schools and lawmakers are trying to safely reopen schools during the COVID-19 pandemic.

Top 5 Consulting-Specifying Engineer articles: March 5-11, 2021

Read the best articles from the past week. Effective COVID-19 mitigation, NFPA 101 and COVID-19, NEC electrical grounding, the scope and cost of a BAS and choosing between an ECM and VFD.

Top 5 Consulting-Specifying Engineer articles: February 26 to March 4, 2021

Read the best articles from the past week. Effective COVID-19 mitigation, NFPA 101 and COVID-19, scope and cost of a BAS, choosing between an ECM and VFD and NEC electrical grounding and bounding.

Office buildings focus on air quality, energy efficiency, HVAC systems

Designing office buildings in a post-COVID world is a challenging task with engineering variables such as HVAC systems

Dealing with COVID-19’s impact on current HVAC systems and equipment

Approaching COVID-19 mitigation through HVAC systems and equipment from a preventive, proactive vantage point gives people a better chance of containing the spread of the virus and limiting the collateral damage it can cause.

Consulting-Specifying Engineer January/February 2021 issue

Read the January/February 2021 digital edition to learn about HVAC system design, energy storage systems, office building design and ASHRAE 90.1.

Effective COVID-19 mitigation for HVAC systems

There are many technologies available for HVAC systems to combat the spread of COVID-19, but not all systems apply to all building types

Colorado schools receive air filters to improve air quality, reduce COVID-19

University of Colorado Boulder researchers have been working on installing a new generation of high-efficiency air filters in Denver public schools to improve air quality and reduce COVID-19.

Dual-path air handling units for healthcare

Strategies with dual-path air handling units (AHUs) that reduce reheat energy result in lower natural gas consumption, as well as reduced cooling energy

Designing flexible, safe labs: HVAC and plumbing

Safety, budget and flexibility are key factors when designing laboratory and research space

Four steps for designing a VRF system

Variable refrigerant flow offers an alternate HVAC solution

Designing, retrofitting hospitals during COVID: HVAC and plumbing

While COVID-19 has changed many aspects of HVAC systems in a health care facility, some things remain identical

Breaking the cycle of deferred maintenance in healthcare facilities

Deferred maintenance continues to present ongoing challenges within healthcare facilities for overall building health, staff members, and quality of care.

Four ways to reduce COVID-19 risk in your facility

Shielding your facility from a COVID-19 outbreak starts with HVAC and refrigeration best practices.

Safely opening education facilities: HVAC implications for consideration

ASHRAE and the CDC are issuing protocols to address indoor air quality, especially in education institutions, which are on the front lines of the COVID-19 pandemic.

White paint keeps surfaces cooler, reduces need for air conditioning

Purdue University engineers have created white paint that would replace the need for air conditioning by absorbing nearly no solar energy and sending heat away from the building.

Consulting-Specifying Engineer most-viewed articles, October 2020

Read the best articles in October 2020 including: Aerosol disinfection in classrooms, building automation systems, 2020 Commissioning Giants, hospital ventilation and more

Students, tech, COVID drive higher ed HVAC design

College and university building design is being driven by student needs, technology and new air quality demands

Can engineers save the world?

The COVID-19 pandemic has pushed engineers to improve indoor air quality

What HVAC changes are required by COVID-19? Learn from AEI experts

Experts at Affiliated Engineers Inc. weigh in on HVAC, codes and standards and smart buildings

Making IAQ better with COVID-19 in the air

How can building HVAC systems be modified to provide a safer environment in new and renovated spaces?

Nanotech filter coating captures COVID-19 droplets

A nanotech coating designed to allow air filters to capture airborne or aerosolized droplets of the virus that causes COVID-19 has been developed by University of Houston researchers.

Consulting-Specifying Engineer most-viewed articles, September 2020

Read the best articles in September 2020 including: Limiting COVID-19 spread, engine installation, designing government buildings, Product of the Year finalists, MEP Giants revenue and more.

Basics of HVAC, plumbing systems for industrial, manufacturing facilities

Industrial and manufacturing facilities have specialty HVAC and plumbing needs engineers must include in new or retrofit projects

Top 5 Consulting-Specifying Engineer articles: September 7-13, 2020

Read the best articles from the past week. Better ventilation, engine installation, safer dining experiences, Product of the Year finalists and mechanical system operations.

Top 5 Consulting-Specifying Engineer articles: August 31 to September 6, 2020

Read the best articles from the past week. Resilient hospital design, MEP Giants revenue, college campuses, pandemic control and Product of the Year finalists.

Pandemic control in high-performance buildings

High-performance building design in health care facilities may teach engineers how to design other building types

Building engineers are helping students safely return to school

There are many factors to consider when deciding when and how to safely open schools across the country. Four highlights from a recent ASHRAE report are highlighted.

Reaching the tipping point for CO2 refrigeration systems

When considering refrigerated systems for increased infrastructure, discussing the type of refrigerant being use, such as CO2 refrigeration, can significantly improve the environmental impact and help prepare for some expected regulation changes.

Consulting-Specifying Engineer most-viewed articles, July 2020

Read the best articles in July 2020 including: Product of the Year finalists, air ventilation and HVAC, NFPA 99 in health care facilities, re-entering the workplace and more.

Top 5 Consulting-Specifying Engineer articles: July 27 to August 2, 2020

Read the best articles from the past week. Air quality and smart buildings, stairwell pressurization, computation design, zero energy buildings and Product of the Year finalists.

Your questions answered: HVAC system design

During the HVAC system design webcast July 21, 2020, several questions were left unanswered. Review some of the additional responses here

Best practices for designing HVAC systems in government buildings

Learn how to specify HVAC systems for government and military buildings

Your questions answered: How to future-proof HVAC systems to meet efficiency and carbon emission goals

Questions not addressed during the July 15, 2020, webcast with Danfoss are addressed here

Computational fluid dynamics’ role in understanding COVID-19 droplet propagation

Using computational fluid dynamics (CFD) analysis, engineers are uniquely positioned to analyze the transmission of droplet particles related to COVID-19.

HVAC considerations for returning to the office

As people return to the office, there are basic measures to promote health and wellness in the office using heating and air conditioning systems, which can have a significant impact.

Engineering aspects of COVID-19 with RTM’s Marc Anderson

Learn about engineering HVAC systems from Marc Anderson of RTM Engineering

Researchers create air filter to trap, kill COVID-19

University of Houston researchers have collaborated and designed a “catch and kill” air filter with nickel foam that can trap the virus responsible for COVID-19, killing it instantly.

Top 5 Consulting-Specifying Engineer articles: July 6-12, 2020

Read the best articles from the past week. Air ventilation and HVAC, Product of the Year finalists, NFPA 99 in healthcare, wireless lighting control standards and COVID-19's effect on engineering practices.

Mechanical system operation, enhancement tips to reduce pandemic risks

HVAC and plumbing strategies can help reduce potential COVID-19 risks and enhance a mechanical system's operation.

Air ventilation and HVAC with Brian Sharkey

Brian Sharkey with Airadigm Solutions offers test-and-balance professionals tips on air balancing and other HVAC issues in nonresidential buildings

Turning faces into thermostats for more personalized comfort

University of Michigan researchers has developed a solution that could provide more efficient and personalized comfort, completely doing away with the wall-mounted thermostats we’re accustomed to called Human Embodied Autonomous Thermostat (HEAT).

How is COVID-19 affecting retail, restaurants? Updates on HVAC and plumbing

With consumers frequently enjoying delivered meals and shopping for goods online, HVAC and plumbing systems need to be robust in brick-and-mortar restaurants and retail structures

Top 5 Consulting-Specifying Engineer articles: May 29 to June 4, 2020

Read the best articles from the past week. NFPA 13-2019 revisions, 40 Under 40 winners, fire and life safety systems, public health laboratory safety and COVID-19 impacts.

Grant awarded to develop a smart ventilation system

A team of Texas A&M University researchers are seeking to develop a smart ventilation control system with grant support from the National Science Foundation (NSF).

Warehouse, manufacturing facilities go high-tech: HVAC

Warehouse, manufacturing and logistics buildings are more than simple boxy structures used to make products and store them before they move onto their next destination. HVAC and plumbing systems are complex, and require specialized design

COVID-19 and the impacts to the workplace

The Bala Consulting Engineers COVID-19 Task Force has published a white paper to assist engineers in making buildings safer

Data centers achieve a new level of high-tech: HVAC systems

Designing solutions for data center clients — whether hyperscale or colocation facilities — requires advanced engineering knowledge

Carbon dioxide sensor can lower energy use, reduce utility costs

Purdue University researchers have developed a carbon dioxide sensor designed to control and cut down on energy consumption through heating and ventilation systems.

Top 5 Consulting-Specifying Engineer articles: April 17-23, 2020

Read the best articles from the past week. COVID-19 strategies for hospitals, NFPA 101, coronavirus' effects on the A/E industry and grow facilities.

Video: IoT and Cloud Computing Meet ASHRAE to Deliver Productivity and Energy Savings

IoT and cloud computing technologies enable pervasive building intelligence which improves indoor air quality (IAQ), occupant health and productivity while reducing energy usage,

Climate-informed HVAC increases in relative humidity may fight COVID-19 and other pandemics

Indoor relative humidity is a function of seasonal climate and building HVAC. The range of 40 to 60% RH may reduce contagion and help those who are infected

How to design K-12 schools: HVAC, plumbing systems

With increasingly complex systems and technology coming into play, work on modern K-12 projects is anything but elementary

Ask an expert on Coronavirus: Sunondo Roy shares engineering guidance

Sunondo Roy provided expert advice to engineers and others involved in the technical aspects of engineering and designing building systems

What’s so important about air filtration?

Filters are ubiquitous in air handling systems, so it’s helpful to understand the different options for filters and to learn about how they function

Oregon State Hospital Replacement Project – Junction City Campus

High sustainable goals were met using a geothermal heating & cooling system and heat pump chillers to provide all the building heating and cooling needs.

Leveraging data to make mechanical systems smarter

Analyzing building data can help to uncover and predict mechanical problems, as well as equip building operations and maintenance staff with and information to be more proactive and efficient while optimizing resources.

Designing efficient refrigeration systems

Doug Sandridge, PE, Principal at RTM Engineering Consultants, answers the questions about RTM’s refrigeration design services: What types of facilities is RTM working on? What are the main challenges and considerations for different projects?

Turbomachine expander improves energy efficiency for businesses and vehicles

Purdue University researchers have developed a turbomachine expander that helps harvest previously wasted energy used in the process of moving the air from high to low pressure.

HVAC energy-saving strategies

Learn about multiple energy-saving strategies — such as temperature and pressure reset and valve strategies — achievable through the use of a building automation system

Seven ways to fight stack effect in buildings

Stack effect can have a nasty effect on buildings during the winter months. Consider these seven steps to mitigate their effect and keep the occupants comfortable.

Video: Fundamentals of Test, Adjust & Balance for Engineers, Cx & Energy Providers

This session explains many of the key test and balance challenges — from practical system design considerations, to the TAB Process, to obtaining meaningful and useful data — that if properly addressed in cooperation with an independent TAB firm can ensure that any project goes smoothly

What’s so special about office buildings? Learn about HVAC and plumbing

Office buildings are complex structures containing automated features, energy-saving designs, high-tech equipment and other components as advanced as you’d find in any other state-of-the-art project. Read this for details on HVAC system and plumbing, piping and pumps

SP-AP ceiling exhaust fan by Greenheck

The SP-AP’s constant cubic feet per minute electronically commutated motor technology ensures performance setpoints resulting in improved indoor air quality when application static pressure is higher than expected

Lab, research facility design: HVAC and plumbing

Learn tips on how to design labs and research facilities — some of the most high-tech buildings around

Cooling coil condensate system design

Cooling coil condensate is an important aspect of HVAC system design and should be carefully considered to avoid major issues in the future

Ask an expert: Hospitals, health care facilities: HVAC

Health care facility designers are expected to keep pace with increasingly complex, advanced engineered systems and features

Learning how to engineer colleges, universities better: HVAC and plumbing

Read about emerging trends in college and university buildings, and learn about the emerging trends impacting their design

Using demand-controlled ventilation in HVAC

Mechanical engineers should consider the many factors that go into designing buildings for indoor air quality and indoor environmental quality

HCD-221 isolation control camper by Greenheck

HCD-221 features a blade seal mechanically fastened to the blade that is field replaceable and available with parallel or opposed blade action.

Enhancing efficiency in industrial and manufacturing facilities: HVAC and sustainability

From high-tech automation to energy-saving lighting and HVAC systems, there is more than meets the eye when it comes to warehouses and factories

Zone and system calculations

Learn the basic zone and system calculations using ASHRAE 62.1 tables and equations

Focus on specialty structures: HVAC and plumbing

Sports arenas, historical buildings, theaters and other specialty buildings require unique HVAC and plumbing engineering design

Your questions answered: HVAC: Hospitals and health care facilities

Responses to several questions about hospital HVAC systems are answered here

Government facility design: HVAC and plumbing

Consulting engineers are working on government, state, municipal, federal, correctional and military buildings

Keeping the HVAC running, the smart way

While upgrading a home furnace, the option to upgrade to a smart thermostat also was under consideration

Retail, restaurant and mixed-use facilities: HVAC

What are the trickiest aspects of retail, restaurant and mixed-use projects and what trends lie ahead? Read on for solid advice from experienced professionals.

Troubleshooting Outside Air Airflow Measurement Stations

Hospital air handling units were periodically tripping freeze stats. Here's how the problem was solved.

Top 5 Consulting-Specifying Engineer Articles, May 31 to June 6

Read the best articles from the past week. Engineers and building professionals clicked on: 2019 Product of the Year finalists, performance based design for HVAC systems, visual perception and the impact on emergency illumination design, electrical testing and commissioning considerations and nuanced design strategies for senior living facilities.

Stack Effect: Why it was so difficult to stay warm this winter

Many street-level tenants of high-rise buildings found it nearly impossible to keep occupants warm despite having thermostats set to maintain comfortable temperatures. In many cases the problem, while fairly common, is not widely understood — it’s known as stack effect.

Performance-based design: HVAC systems

Many consulting engineers base their designs on performance, thus the focus on performance-based design in many specifications for HVAC system design.

Planning multifamily dwellings: HVAC and plumbing

Multifamily dwellings are fascinating projects with unique HVAC needs. In essence, they could be considered giant people storage facilities for different stages of life. College dormitories, for example, contain young adults in their late teens and early twenties. Assisted living facilities hold people in their later years. However, engineers know these structures are more than just simply boxes to keep human beings in. They’re as complex and varied as the people inside.

Top 5 Consulting-Specifying Engineer Articles, April 26 to May 2

Integrating modeling into building design, resilience in HVAC design, Product of the Year finalists, designing resilient buildings, and cybersecurity in automation were Consulting-Specifying Engineer's five most clicked articles from last week, April 26 to May 2. Were you out last week? You can catch up here.

EM-30 backdraft damper by Greenheck

The EM-30 is a vertical-mount horizontal airflow backdraft damper for pressures up to 10 inches water gauge and velocities up to 3,500 feet per minute.

High-5 HVLS ceiling fan by Patterson Fan Co.

The High-5 HVLS ceiling fan is ideal for industrial facilities such as warehouses and manufacturing plants.

Top design trends in data centers: HVAC, plumbing

An increasingly data-driven society demands advanced, high-performance data center facilities. Read on to learn the biggest HVAC and plumbing challenges, emerging technologies and upcoming trends affecting data centers.

Choosing and specifying VRF systems

In your client’s quest for energy efficiency, determining if a variable refrigerant flow system is right requires careful consideration.

Resilience in HVAC Design

In California, the Los Angeles Community College District (LACCD) strives to anticipate future heating and cooling needs for its nine campuses through the HVAC projects it has recently pursued.

Keeping it cool: How biopharma facilities can use an old technology in a new way

When it comes to cooling pharmaceutical facilities and their processes, we don’t necessarily need the most modern refrigeration technology.

Top 5 Consulting-Specifying Engineer Articles, April 5 to April 11

Understanding GFCI nuisances, AHU component makeup, AEC industry struggles, humidity in healthcare facilities, and NFPA 72-2019 updates were Consulting-Specifying Engineer's five most clicked articles from last week, April 5 to April 11. Were you out last week? You can catch up here.

Three tips for designing VRF and ACB systems

When designing variable refrigerant flow or active chilled beam systems, consulting engineers must focus on three core areas.

The Fine Line of Humidity and Healthcare: 4 MEP Engineering Considerations

Over the past several years, regulators have given more attention to humidity levels in operating rooms and central sterile processing departments.

Sponsored Content: Bell & Gossett adds new features and capabilities to its best-in-class online system selection tool ESP-SystemwizeTM

As building owners, facility managers and specifying engineers turn their attention to improving occupant comfort and maintaining air quality while reducing overall energy consumption, they are increasingly putting holistic system performance at the top of their lists when it comes to commercial buildings.

Top 5 Consulting-Specifying Engineer Articles, March 8-14

AHU component makeup, combined heat and power systems, female engineers as leaders, the 2019 HVAC & Building Automation Systems Study, and developing hyperscale data centers were Consulting-Specifying Engineer's five most clicked articles from last week, March 8-14. Were you out last week? You can catch up here.

Top 5 Consulting-Specifying Engineer Articles, March 1-7

AHU component makeup, chiller selection, changes to NFPA 101-2018, merger and acquisition updates, and strategies to deal with turbulent times in the engineering industry were Consulting-Specifying Engineer's five most clicked articles from last week, March 1-7. Were you out last week? You can catch up here.

Top 5 Consulting-Specifying Engineer Articles, February 15-21

AHU component makeup, changes to NFPA 70-2017, why AHUs are important, complex fire alarm system design and commissioning, and LED lighting and control system design considerations were Consulting-Specifying Engineer's five most clicked articles from last week, Feb. 15-21. Were you out last week? You can catch up here.

Top 5 Consulting-Specifying Engineer Articles, February 1-7

HVAC design solutions, LED lighting and control design considerations, AHUs in HVAC design configuration, NFPA 70-2017 changes, and going net zero with your building were Consulting-Specifying Engineer's five most clicked articles from last week, Feb. 1-7. Were you out last week? You can catch up here.

Top 5 Consulting-Specifying Engineer Articles, January 25-31

Augmented reality in building design and construction, how to design fire alarm notification systems, AHUs in HVAC design configuration, designing power systems for high performance buildings, and generator questions answered were Consulting-Specifying Engineer's five most clicked articles from last week, Jan. 25-31. Were you out last week? You can catch up here.

Case study: HVAC system conversion includes remote monitoring

A government facility’s HVAC system was overhauled to make it more efficient and cost-effective.

Case study: Flexible, reliable HVAC system

A quiet, efficient, and flexible HVAC system replaced an older one in this government office building.

Solutions for tight spaces in HVAC design

An historic university building had tough mechanical space requirements. Here’s how these challenges were met.

AHUs in HVAC system design configurations

In this third portion, review guidelines, standards, and basic concepts for designing HVAC projects using AHUs.

Top 5 Consulting-Specifying Engineer Articles, January 18-24

Why are AHUs important, design strategies for HVAC systems, setting new engineering habits, school boiler replacement case study, and AHU component makeup were Consulting-Specifying Engineer's five most clicked articles from last week, Jan. 18-24. Were you out last week? You can catch up here.

AHU types, components, and configurations

In this second portion, engineers will understand the component makeup of air handling units (AHUs) and their inclusion within various HVAC systems.

Designing flexible, complex office buildings: HVAC/plumbing

Mixed-use office buildings demand a great deal of expertise, flexibility, and complex technology, making them more challenging than one might expect. Engineers with experience handling office buildings share advice and a glimpse into the future regarding HVAC and plumbing.

Efficient HVAC system design strategies

The integration of high-performance HVAC design strategies can do as much to make systems energy-efficient as specifying high energy efficiency ratings.

Video: Case Study Using a Variable Flow Chiller in a Central Plant

This presentation will cover an overview of the system operation with three 1250 ton chillers and an overview of the bypass system and how to size bypass valves.

Why are AHUs important?

Providing energy-efficient and comfortable HVAC systems is an important task for HVAC engineers and designers. In this first part, learn about the importance of air handling units (AHUs) within building HVAC systems.

Automatic balancing dampers by Greenheck

The ABD can be installed directly into round duct work without the need for any fasteners or use of any adhesive.

Designing safe laboratories and research facilities: HVAC

Engineers working on laboratory and research projects are tasked with balancing state-of-the-art systems, budgetary concerns, occupant safety, sustainable performance, and other factors including HVAC.

Your questions answered: Curbing VFD harmonics in HVAC applications

Explore HVAC applications for VFDs, VFD design differences and performance factors, harmonic mitigation methods, and the basics of IEEE 519.

Designing health care facilities and medical campuses: HVAC and plumbing

Hospitals, clinics, and similar facilities are among the most demanding an engineer can tackle—the technology is evolving rapidly, hospital managers are increasingly budget-conscious, and assist in saving lives. Here, HVAC design challenges and trends are explained for these building types.

HVAC, BAS in research facilities

Forty-four percent of respondents to the 2017 HVAC & Building Automation Systems Study make product selections for research facilities/laboratories.

Examining higher education facilities: HVAC and plumbing

As technology advances in every field, the college and university students being prepped for future careers in those fields need the tech they’re learning with to keep up. That presents unique challenges for the engineers working on such structures—specifying advanced systems that satisfy the unique needs of each institution. Here, professionals with experience in the area offer advice on how to tackle such facilities and receivetop marksin regard to HVAC and plumbing.

How the IoT will change the engineering industry

Advancements in technology and the Internet of Things (IoT) is transforming the engineering industry.

Video: Understanding New Air Flow Regulations and ASHRAE Air Flow Requirements and Solutions

This presentation explains new changes in regulations and ASHRAE updates affecting air flow requirements in the HVAC systems and how energy conservation measures affect them.

Designing industrial, manufacturing, and warehouse facilities: Codes and standards

More than just places to make and store products, industrial, manufacturing, and warehouse facilities are becoming more complex. Building codes and standards dictate design and safety elements.

Video: Top Operational and Energy Saving Trends for Data Center Cooling

This presentation will highlight the advances made in critical infrastructure technologies for chillers and cooling plants, AHUs, and modular approaches to achieve significant operating and energy expense savings.

How to calculate ventilation

Calculating the Ventilation Rate Procedure is key in any building project.

Case study: Using IAQP in design

Indoor air quality procedure was used to calculate the design of a community center’s HVAC system.

ASHRAE 62.1: Moving from prescriptive to performance

ASHRAE 62.1 is best known for its regulation of the amount of ventilation air delivered to each space by HVAC systems through its ventilation rate procedure approach to system design.

HVAC, BAS in office buildings

Seventy-one percent of engineers who responded to the 2017 HVAC & Building Automation Systems Study make product selections for office buildings.

MEP Giants revenue jumps $6 billion over last year

The 2018 MEP Giants gross revenue increased as compared with last year. MEP/FP revenue also increased.

Deal-making by MEP Giants takes a breather

After a very active 2016, fewer mechanical, electrical, plumbing, and fire protection (MEP/FP) engineering firms made acquisitions in 2017, matching the downward trend seen in the broader engineering industry. However, 2018 is on track to becoming a record-setting year.

Dewberry: Duke Chapel Utility & MEP Upgrades

Automation, controls; commissioning, retro-commissioning; electrical, power; HVAC, mechanical; lighting; religious building; and system overhaul

Video: Testing HVAC Water Systems with Diversity

This presentation examines the appropriate TAB approaches to HVAC water system diversity and various testing scenarios.

Top 5 Consulting-Specifying Engineer Articles, July 30-August 5

Data center energy use, improving wayfinding in complex environment, benefits of integrated fire protection system testing, HVAC projects, and a case study involving airport renovation were Consulting-Specifying Engineer's five most clicked articles from last week, Jul. 30-Aug. 5. Were you out last week? You can catch up here.

Examining government, state, municipal, federal, and military facilities

Government and military projects are among the toughest challenges an engineer can face. Demanding facility owners, tight budget limitations, safety concerns, and other factors all come into play. Here, engineers with experience in the field offer advice on how to succeed.

Data centers used for bitcoin mining

Data centers used for bitcoin mining have significant differences from their commercial data center counterparts.

Designing efficient data centers: Codes and standards

In today’s digital age, businesses rely on running an efficient, reliable, and secure operation, especially with mission critical facilities such as data centers. Here, engineers with experience on such structures share advice and tips on ensuring project success in regards to codes and standards.

HVAC, BAS in hospitals, health care facilities

More than half of engineers who responded to the 2017 HVAC & Building Automation Systems Study make product selections for hospitals/health care facilities.

Certifying data centers

A new standard,UL 3223, creates a baseline for all of a data center’s elements.

Top 5 Consulting-Specifying Engineer Articles, February 26-March 4

Arc flash mitigation in solar systems, critical power webcast unanswered questions, NFPA 101 in healthcare buildings, overlooked ASHRAE 90.1 requirements, and ASHRAE 90.1 compliance were Consulting-Specifying Engineer's five most clicked articles from last week, January February 26-March 4. Were you out last week? You can catch up here.

Commissioning and retro-commissioning in health care facilities

Health care facilities are complex structures containing distinct and diverse spaces. Because they use so much energy on a daily basis, there are plenty of opportunities to become more energy- and cost-efficient through commissioning and retro-commissioning.

Designing efficient office buildings with visual appeal

Office buildings can be highly complex, with complicated features and advanced technology. Experienced engineers share advice on how to handle these structures and identify trends impacting such structures now and in the future.

Can data centers become energy producers?

Recovering "waste" heat from servers in data centers opens the door to innovation and efficiency.

The science behind laboratory and research facility projects: automation and controls and codes and standards

Engineers need to consider many factors for a lab or research facility so it can perform as needed. Engineers with experience on such facilities offer advice on how to pass the test.

Building efficient colleges and universities: automation and controls and codes and standards

Colleges and universities face a long list of challenges, as do the engineers tasked to help construct and modify the facilities at these institutions. Here, experienced professionals share their knowledge regarding automation and controls and codes and standards.

The complexities of industrial, manufacturing, and warehouse facilities

Warehouses and factories are more than bare-bones buildings for companies to make and keep equipment. The systems that project owners call for can be advanced and complex, keeping consulting and specifying engineers on their toes. Here, professionals with experience on such facilities offer advice on how to meet and exceed expectations.

The complexities of industrial, manufacturing, and warehouse facilities: codes and standards

Warehouses and factories are more than simply bare-bones buildings for companies to keep equipment. Here, professionals with experience on such facilities offer advice on how to meet and exceed expectations regarding codes and standards.

Project Profile: Medical building with integrated project delivery

The project was significantly under budget and provided 11 percent savings overall.

Project Profile: Building automation system in community hospital

The hospital successfully achieved LEED Gold certification.

The art of designing sports, entertainment, and specialty structures: Codes and standards

Entertainment venues are big businesses—and big on complexity, with a host of complex systems and requirements for engineers to tackle. Building codes and standards are top-of-mind.

Explosion-proof smoke detectors

The Det-Tronics SmokeWatch is applicable to industrial HVAC duct-monitoring.

Top 5 Consulting-Specifying Engineer Articles, August 21-27: MEP Giants, designing lighting systems, arc flash mitigation, and more

MEP Giants, designing lighting systems, arc flash mitigation, grounded and ungrounded power, and codes and standards were Consulting-Specifying Engineer's five most clicked articles from last week, August 21-27. Were you out last week? You can catch up here.

Case study: Integrated resort project

By integrating the lighting and HVAC systems, a resort saved on overall energy use.

Smart infrastructure to impel window automation market growth, inclination toward sustainable technologies to favor the industry trends

With rising green building initiatives, improved building codes and standards, novel technological breakthroughs, and the rising need for modern infrastructure, it should come as no surprise, that the window automation industry will chart out a profitable growth graph over the ensuing years.

Compact serial console

Avocent ACS800 targets retail, education and financial edge market segments with IT remote access and IoT connectivity.

Active chilled beam cassette

SEMCO's LYRA II has personalized pinpoint temperature and humidity via digital controller for new construction and retrofit applications.

Rooftop ventilation line

Greenheck introduces energy-efficient rooftop ventilation line.

Top 5 Consulting-Specifying Engineer Articles, June 12 to June 18: paralleling generator systems, BIM project coordination, data centers, BACnet

Articles about paralleling generator systems, BIM project coordination, data centers, and BACnet were Consulting-Specifying Engineer's five most clicked articles from last week, June 12 to June 18. Were you out last week? You can catch up here.

How NFPA 99-2015 changes affect mechanical design

NFPA 99-2015 has a few changes that mechanical engineers should pay close attention to.

Your questions answered: Combined heat and power

The May 31, 2017, webcast focused on cogeneration principles including combined heat and power (CHP) and combined cooling, heat, and power (CCHP). Unanswered questions were answered in after the live event.

Dedicated outside air systems

York's dedicated outside air systems allow easy adapt to all climate conditions, demanding applications and evolving industry standards.

Plug fans for unhoused configuration

Hartzell Air Movement's Series 12 Plug Fans use the Hartzell PL type wheel.

Analyzing data centers

Data is the lifeblood of any business or organization—which makes a data center a facility’s beating heart. Here, engineers with experience on data center projects show how to succeed on such facilities, and how to keep your finger on the pulse of data center trends.

Top 5 Consulting-Specifying Engineer Articles, April 3 to 9: Networking VFDs, commissioning electrical systems, designing emergency generator systems, specifying electrical distribution systems, building controls

Articles about networking VFDs, commissioning electrical systems, designing emergency generator systems, specifying electrical distribution, and building controls were Consulting-Specifying Engineer's five most clicked articles from last week, April 3 to 9. Were you out last week? You can catch up here.

Climate control system for large diameter fans

MacroAir's AirEffect, a climate control system for large diameter fans. Through automation, AirEffect eliminates the need to constantly monitor and adjust the fans’ speed and direction in response to temperature fluctuations.

3-D sensor for indoor air unit

Mitsubishi Electric's 3-D i-see Sensor is a small, yet powerful component mounted to the exterior panel of the ceiling cassette.

High-efficiency condensing boilers

Aerco's Benchmark Platinum boiler features O2 trim technology, dual returns, and remote monitoring.

Top 5 Consulting-Specifying Engineer Articles, February 27 to March 5: Self-powered wireless technology, unitary pumping solutions, integrating commissioning, NFPA 101, and emergency power, more

Articles about self-powered wireless technology, unitary pumping solutions, integrating commissioning, NFPA 101, and emergency power were Consulting-Specifying Engineer's five most clicked articles from last week, February 27 to March 5. Were you out last week? You can catch up here.

Data Centers: AIA CES accredited online course

This course will explore the fundamentals of data centers and energy efficiency.

Gearboxes for field-erected cooling towers

SPX Cooling Technologies' Series M Geareducer gearboxes reduce the speed of the electric motor to optimize fan performance.

Engineering flexible office buildings: automation and controls/codes and standards

Office buildings need to have the ability to accommodate myriad types of businesses and activities to meet the needs of tenants. Here, engineers with experience on such buildings share their knowledge, lessons learned over the years, and trends for automation and controls and codes and standards.

Engineering hospital systems to work effortlessly

While quite a bit of engineering goes into each mechanical, electrical, plumbing, or fire and life safety system in a hospital, it is mostly invisible to the patient or visitor. That is, until you need it.

Top 5 Consulting-Specifying Engineer Articles, January 23-29: NFPA 110-2016, NEC 2017 changes, batteries in mission critical facilities, more

Articles about applying NFPA 110-2016, NEC 2017 changes, batteries in mission critical facilities, choosing a modular data center, and battling the complexity of government system designs were Consulting-Specifying Engineer's five most clicked articles from last week, January 23-29. Were you out last week? You can catch up here.

Oil-free compressor for full and part load

The commercial refrigerant compressors are designed for water-cooled chiller applications.

Designing modular data centers

When planning for modular data center design, the engineer should focus on attributes such as system efficiency and operational characteristics.

Management system for HVAC equipment

Intelligent Equipment is designed as a factory-installed option to Trailblazer chillers to help building owners and facility managers transform how they manage HVAC equipment.

Water-cooled chiller for tight temperature control

The chiller is system designed for tight temperature control and lowering environmental impact.

Internet-based data and alarm system

The GRM system provides users remote access and control to data and alarms from pumps, controllers, and auxiliary equipment.

Boiler pumping stations

The ThermalPro units are pre-piped, insulated pumping stations for mechanical rooms.

Smart chiller operator dashboard

The Smart Connected Chiller Operator Dashboard is designed to provide chiller plant operators with 24x7 access to chiller trend data and predictive analytics.

Evaluating the other side of BIM

Complete building information management offers a real-time guide to strategic decision making and insight into all areas of the business.

Oil-free magnetic bearing chiller

Daikin's oil-free chiller is designed with magnetic bearing compressor technology and allows the flexibility to maintain stable chiller operations at low load conditions.

45-degree elbows for press systems

Viega's elbows provide flexibility for larger tubing materials in PEX Press systems.

Exploring the high demands for higher education facilities: codes and standards

The design process for higher education facilities has its own set of challenges and requirements. Engineers discuss the current trends, challenges, and experiences with college and university facility projects regarding codes and standards.

Energy-efficiency education dashboard

QA Gateway implements Raspberry Pi technology that allows user to compare and share building data in the form of an education dashboard.

High-efficiency commercial boiler

Lochinvar's Power-Fin commercial boiler offers an input capacity from 2.5 to 5 million Btu/hour, more than doubling its previous capacity.

Back to basics: VRF systems

Know the basics of variable refrigerant flow (VRF) systems to determine if they are the right choice for your next HVAC project.

Facing the challenges of mixed-use buildings: codes and standards

Fulfilling the demands of a mixed-use facility can be challenging, considering the structure’s diverse components. Here, professionals with experience on such projects share advice and explain how to end up with positive results regarding codes and standards.

Electric steam boilers for applications requiring saturated steam

FB-E series of electric steam boilers can provide operating pressures up to 85 psi and suitable for applications requiring a design pressure of 100 psi.

Chillers for large buildings and industrial applications

CenTraVac chillers for large buildings and industrial applications such as office and municipal buildings offer choice of current refrigerant R-123 or R-514A.

Consulting-Specifying Engineer welcomes Cory Duggin, PE, LEED AP BD+C, BEMP, to editorial advisory board

Cory Duggin, energy modeling wizard at TLC Engineering for Architecture Inc., has joined the editorial advisory board.

Consulting-Specifying Engineer announces Sunondo Roy, PE, LEED AP BD+C, joins Consulting-Specifying Engineer editorial advisory board

CCJM Engineers Ltd.’s vice president Sunondo Roy has joined the editorial advisory board.

Cory J. Abramowicz, PE, LEED AP, joins Consulting-Specifying Engineer editorial advisory board

Cory J. Abramowicz, associate at Environmental Systems Design Inc., has joined the editorial advisory board.

Exact-fit packaged heat pump

Exact-fit packaged heat pump is an addition to the Champion Direct Replacement rooftop solution that features controls and an optional mobile access portal gateway.

High-performance medical and educational building design: Codes and standards

The design of high-performance medical and educational projects are challenging and need to meet specific standards, codes, and trends. Specific codes and standards are critical to follow when designing a building.

Evaporative media humidifier

ME is the evaporative media humidifier and cooler. Evaporative media is the energy efficient way to humidify while giving the evaporative cooling.

Stand-alone health care buildings: Codes and standards

Stand-alone medical buildings and specialized treatment facilities are engineering challenges, and more are being designed and built due to changes in health care requirements. Codes and standards dictate much of the design of these facilities.

Fire/life safety: Detection and notification systems

Fire detection systems—including fire, smoke, heat, linear, and intelligent—are required at varying levels in nonresidential buildings.

Data centers’ intricate design: Codes and standards

Data centers are important structures that hold vital information for businesses, schools, public agencies, and private individuals. A variety of codes and standards guide engineers in designing these data centers.

Top 5 Consulting-Specifying Engineer articles, April 18-24: LED codes and standards, equipment selection, Product of the Year, more

Articles about LED codes and standards, aspects to consider in equipment selection, the 2016 Product of the Year awards, following coordination best practices, and energy savings in electrical distribution systems were Consulting-Specifying Engineer's five most clicked articles from April 18-24. Miss something? You can catch up here.

Variable air volume (VAV) controllers

The Eclypse Connected VAV Controller series, BTL listed (B-BC), successfully distributes IP connectivity throughout buildings to the terminal equipment level.

Enhancing the learning experience in K-12 schools: Codes and standards

K-12 schools are among the most important projects engineers can tackle. Codes and standards dictate the design of each educational facility.

Central controller with network adapter software

Variable refrigerant flow systems can be integrated with a BACnet or LonWorks system with adapters, or can use a remote-access, web-based dedicated system.

U.S. commercial refrigeration equipment demand to exceed $11 billion

U.S. demand for commercial refrigeration equipment is forecast to increase 3.1% per year through 2020 to $11.3 billion, moderating from the 2010-2015 period, when growth was bolstered by a rebound in sales after the economic recession.

How does your hospital stack up: Report examines electricity, fossil fuel, water/sewer, carbon footprint

The Grumman/Butkus Associates 2015 Hospital Benchmarking Survey has been released. Hospitals’ energy costs per square foot have fluctuated greatly since 1999. Energy use intensity (Btu/sq ft/year) fell in 2014 after a fairly sharp rise in 2013, probably due to a somewhat milder winter in 2013-14 versus 2012-13.

Class A office building system design

Class A office buildings are among the toughest projects an engineer can work on—complex structures, demanding clients, and advanced technology.

Have you ever thought about how federal legislation affects your job?

Engineers generally don't get very involved in politics, but that needs to change. Engineering is changing from a profession that enjoys legal protection to a profession that enjoys legal protection and also needs to comply with the law in a manner that is well beyond traditional compliance with codes and standards.

Stainless steel boiler line

Bosch Rexroth's Buderus SSB Series is designed with stainless steel construction and includes condensing technology in four separate chassis sizes.

MEP construction layout software

Field Link MEP construction layout software can be used for performing outdoor construction layout tasks.

Healthy hospital success

With hospital projects, it is imperative that engineers get everything exactly right—after all, the lives of patients treated in the health care building may depend on it.

Healthy hospital success: Codes and standards

With hospital projects, it is imperative that engineers get everything exactly right—after all, the lives of patients treated in the health care building may depend on it. Codes and standards, including NFPA and Facility Guidelines Institute, are reviewed.

Getting it right in mixed-use buildings: Codes and standards

Mixed-use buildings—often a combination of retail and residential—are unique structures with varying needs. A variety of codes and standards dictate building design.

Commissioning commercial buildings: Codes and standards

Ideally, all nonresidential buildings would be commissioned, and the team would start at the onset of the project. Because that’s not always the case, commissioning authorities and experts offer codes and standards advice on building projects in various stages of commissioning, recommissioning, or retro-commissioning.

Thermal controls for data center system optimization

Emerson Network Power's Liebert iCOM thermal controls are designed to eliminate single points of failure as well as monitor and manage the data center environment and its thermal-management systems.

Engineering on an international scale: Codes and standards

Working on projects clear across the globe may introduce more obstacles to overcome than mere distance and language barriers—each locale comes with its own codes, climate conditions, and unique characteristics. Building codes and standards are at the forefront.

Integrated boiler system

CBEX boilers are sized from 900 to 1,200 hp and features an integrated boiler, burner, control, and heat-recovery system.

Case study: Zero-net energy transit center

The John W. Olver Transit Center zero-net energy (ZNE) project is a high-performance building designed with reduced energy loads, passive design strategies, maximized efficiency of mechanical and electrical systems, and on-site power generation.

Defining net zero energy

ASHRAE has a goal: net zero energy for all new buildings by 2030. What do engineers need to know to achieve this goal on their projects? How can the various engineered systems within a nonresidential building be integrated to achieve this goal?

Solving noise, vibration problems in HVAC systems

Vibration, sound, and noise can be mitigated by designing HVAC systems properly, which may include isolation pads, flexible pipe connectors, or other means.

Indoor air quality in hospitals

Hospitals and health care facilities must comply with ASHRAE and other regulatory standards with respect to air change rates, humidity requirements, and pressurization. ASHRAE Standard 62.1 is the most commonly referenced standard to meet appropriate HVAC system design. Other factors to consider include the use of UV light to reduce hospital-acquired infections, unique air requirements, and outdoor air systems.

Code or standard?

What's the difference between a code and a standard?

Remote-connectivity platforms for boilers

The remote-connectivity platform allows most smart devices to be linked with compatible smart system boiler controls from around the corner or halfway around the world.

Air-cooled chiller

This air-cooled chiller that is energy efficient and quiet, and offers customers the choice of operating with a next generation, lower global warming potential refrigerant.

Creating efficient, effective labs: Building automation, controls

Laboratory and research facility operators must produce precise, reliable results every time in order to stay in business—and they insist upon that same precision from the engineers working on their buildings. Building automation systems and integration often come into play.

Selecting an HVAC pump

The flow rate, pressure losses, best efficiency point compared to the duty point, and the operating cost are all important factors when selecting a pump for HVAC applications.

Graduating from smart to intelligent buildings

Technology is changing what is possible in the built environment. Smart buildings integrate the design of the infrastructure, building and facility systems, communications, business systems, and technology solutions that contribute to sustainability and operational efficiency.

Packaged boiler

CBEX Elite packaged boiler reduces emissions while operating more efficiently.

Government building design: Codes and standards

When your client is the government, engineering design can be tricky, thanks to stepped-up regulations, budgetary concerns, and other considerations. Respondents discuss the intricate codes and standards for government, state, municipal, federal, and military facilities.

Automatic variable-air-volume dampers

The SmartAire MZ offers four independent control zones, a simplified user interface on the unit and on screen, and greater integration with existing DCIM and BAS.

Boiler system control

Hydronic System Control (HSC) fits both new and existing hydronic boiler systems.

Project profile: Air reserve station energy-saving project

Occupancy sensors have saved more than $166,000 for the air reserve station.

Hydronic balancing valve

Compact Pressure Independent Balancing and Control Valve increases diagnostic and energy efficiency.

Condensing boilers

Condensing boilers to include three models with 750,000, 1.0 million, and 1.25 million Btu/hr inputs.

Water-cooled chiller line

New sizes increases flexibility and energy efficiency in mission critical applications.

Integrated combustion system

The Slate Integrated Combustion System is designed to simplify the engineering of combustion equipment controls in one, easy-to-program platform and is designed for commercial and industrial boilers as well as other applications.

Top HVAC controls trends for 2015

As the world becomes more concerned about carbon emissions and energy consumption, the overall efficiency of commercial buildings will remain a key area of focus. The processes and products used by buildings in 2015 will keep evolving as manufacturers, integrators and building owners continue to experiment in order to find better ways of cutting wasteful energy usage.

Integrated chiller plant control system

The IPC 9521 Integrated Plant Control system is designed to help building owners achieve energy efficiency in chiller plant systems and uses a base-level platform that can be easily upgraded as installation requirements evolve.

Driving data center design: Codes and standards

In the information age, data centers can be the beating heart of not just a building, but an entire global corporation. Local codes and standards must be carefully reviewed and adhered to.

Unit heater for commercial applications

Expanse unit heater comes with tubular heat exchanger that is suitable for commercial real estate, municipal buildings, and industrial and institutional facilities.

VFD, motor strategies for energy efficiency

A variable frequency drive (VFD) often is specified to reduce operational cost for pumps, fans, compressors, or any similar equipment with variable load profiles that may be found in a typical building. Here’s how to specify a VFD to meet load conditions while achieving efficiency.

Common pitfalls in specifying motors and VFDs

Ten common issues that can affect functionality of motors and variable frequency drive (VFD) specification.

Heat sinks for solid state switching

These heat sinks come with DIN rail, panel and through-wall mounting, and options for single or multiple SSR assemblies.

Designing higher education facilities: Codes and standards

The world is getting more high-tech, and the colleges and universities preparing students to work in an increasingly advanced environment must keep pace. Engineers have a bevy of codes and standards they must adhere to.

Selecting fire pumps

The key for fire protection engineers is to understand the requirements of both NFPA 20 and NFPA 70 to properly choose and configure a fire pump so that the fire protection systems can serve their intended use.

Large fire dampers

These UL Listed, non-actuated, dynamic fire dampers come in four models and are available to protect oversized openings in buildings.

Adjustable louver with drainable blades

Model EAD-635 is an adjustable blade louver in a 6-in. deep frame that incorporates a drainable head member and adjustable drainable blades and is designed for warehouse distribution facilities.

Designing smoke control systems

A smoke control system should be designed by a fire protection engineer who can tailor the system to the characteristics of the building and its occupants.

Redundant VFDs and fan arrays in critical operations

Understand how to use variable frequency drives in fan arrays to enhance the airflow in mission critical facilities.

Arup Thoughts: A top-down approach to flood prevention

The top-down attenuating drains filter the rainwater, so you could pipe it to small tanks for flushing the toilets in the building. This makes it a zero-energy rainwater harvesting system that provides a sustainable urban drainage solution.

Liquid cooling heat exchanger assembly

The liquid cooling heat exchanger assembly can dissipate over 10 KW of heat in shipboard and industrial applications.

Plume laboratory and fume exhaust fan

Vektor-CH and Vektor-CS fans are added to Greenheck Vektor's plume laboratory and fume exhaust systems line.

Engineering workable, successful office space: Codes and standards

Whether new or retrofit, office buildings can be a challenge for the mechanical, electrical, plumbing (MEP), or fire protection engineer. A team of experienced professionals offers advice on building codes and standards.

Cooling units designed for data centers

The Uniflair LE HDCV 4500 and HDCV 5000 cooling units are designed for data centers and utilize a coil system and under-floor fan module that is designed to deliver strong cooling capacity while drawing less power.

The world’s largest CHW plant: Pearl of Qatar

The Pearl of Qatar is a 130,000-ton district chilled water (CHW) plant that serves the cooling needs for all buildings on the island.

Project profile: Medical center expansion

The project used several innovative strategies to save energy and reduce harmful emissions into the community.

Project profile: Headquarters energy efficiency improvement

Franklin Energy saves 32% on electric, 48% on gas with VRF zoning systems.

Domestic M&A holding steady as global deals dip in 2013

Mechanical, electrical, plumbing (MEP), and fire protection engineering firm leaders continue their merger and acquisition pace in the United States, while overseas activity weakened in 2013.

Closed and open specifications

What exactly are they, and how should engineers specify products or systems with the four different types of specifications?

Project profile: Data center campus

Sabey Data Center has three independent power trains to protect IT system and mechanical load during a power breakdown.

Fire tube boiler

The FTXL Boiler delivers up to 10:1 turndown and up to 98% thermal efficiency.

The challenge: Tall and super-tall buildings: Codes and standards

High-rise buildings aren’t just big—for engineers, they present big challenges. Meeting building codes and standards becomes a new challenge in these cutting-edge structures, both in the United States and abroad.

Water-cooled chiller

The Optimus helical rotary water-cooled chiller uses an Adaptive Frequency Drive (AFD) to adjust motor speed for precise temperature control.

How to engineer manufacturing, industrial buildings: Codes and standards

Manufacturing and industrial facilities can be particularly complex projects, involving large facilities containing behemoth machinery, hazardous chemicals, and a range of other concerns. Engineers must adhere to local, national, and international codes and standards.

The proper amount of specificity

What is the appropriate level of detail for a specification?

June 6 Southland Industries video update

Watch this video for an update on the engineering progress at the Carl R. Darnall Army Medical Center.

New health care facilities use smart technologies

The owner of nine new health care buildings turned to smart building solutions to meet its goals and objectives.

High standards for labs, research buildings: Codes and standards

Laboratory and research facilities are high-performance buildings, often with complex systems and exacting standards for engineers to meet. Buildings must be designed to meet exacting codes and standards, including those from NFPA and IBC.

2014 40 Under 40: Pamela Androff, PE, 27

Project Manager, Mitsubishi Electric Cooling & Heating, Atlanta University of Central Florida, BS Mechanical Engineering

2014 40 Under 40: Andrew Craig, PE, LEED AP, 36

Associate, Senior Mechanical Engineer, Energy Analyst, Interface Engineering, Portland, Ore.

Call for Abstracts for the 2015 NEBB Annual Conference

The National Environmental Balancing Bureau is seeking abstracts for its 2015 conference presentations.

Heat pump line expanded

Fujitsu's Halcyon light commercial multi-zone heat pump line has been expanded and are designed specifically for light commercial retrofit applications.

April 4 Southland Industries update: Plumbing fixtures, chiller in progress

Southland Industries has completed several more steps at the Carl R. Darnall Army Medical Center located in Fort Hood, Texas.

Top 5 Consulting-Specifying Engineer articles, March 23-29

Were you out last week? Miss something? Here are the Consulting-Specifying Engineer ’s five most-clicked articles from last week, March 23-29, including articles about electric fire pumps, NFPA 92, standby generators, ASHRAE 90.1-2013, and designing labratory ventaliation systems.

Top 5 Consulting-Specifying Engineer articles, March 17 – 23

Were you out last week? Miss something? Here are the Consulting-Specifying Engineer's five most-clicked articles from last week, March 17 - 23, including articles about standby generators, boiler system controls, selecting energy-efficient transformers, Engineering in K-12 schools, and a weekly merger, acquisition deal update.

Engineering in K-12 schools: Codes and standards

Engineers offer practical advice and best practices on how to design HVAC, electrical, lighting, and fire protection systems in K-12 schools while meeting all codes and standards.

Integrated variable speed motor control

Grundfos' unified MLE motor is suited for new commercial HVAC/R applications and deep retrofits and is available in models, ranging from end-suction to inline to split-case pumping solutions.

March 4 Southland Industries update: Roughing in systems, ceilings and diffusers complete, parking garages underway, beginning to prepare to start chilled water plant

Roughing in systems on levels 2, 4, 5, and 6; ceilings and diffusers are complete or near completion; all 3 parking garages are underway; preparation to started the chilled water plant is underway.

Top 5 Consulting-Specifying Engineer articles, Feb. 17-23, 2014

Were you out last week? Miss something? Here are Consulting-Specifying Engineer’s five most clicked articles from last week, Feb. 17-23, 2014, including articles about the MEP Giants Program, corrosion in electrical systems, laboratory ventilation systems, lighting control requirements, and VFD and motor strategies.

Optimizing hot water systems with condensing boilers

Selecting a condensing boiler has the potential for high efficiency gains, but understanding special considerations for these boilers could cost you if you design the way you have in the past.

Control sequences for HVAC systems

Follow these 10 steps to create a successful sequence of operation, one of the most important design aspects of any HVAC system.

Ductless air conditioners, heat pumps

Johnson Controls’ Coleman ductless air conditioners and heat pumps deliver heating and cooling to structures without ductwork.

How to use workmanship and quality in construction documents

The terms workmanship and quality are often used interchangeably; however, the correct usage of one may be dependent on the other, and there are limitations on how each term should be used.

Integrated controls for HVAC solutions

Mitsubishi Electric Cooling & Heating's SmartME Zone Controller, AdvancedHVAC Input/Output Controller, and EB-50GU-A Central Controller create a seamless, comprehensive system to support enhanced functions.

Chicago building boasts daylighting, lighting controls

The Access Living headquarters in Chicago has a self-sustaining vegetative roof and uses integrated and green building design to achieve energy savings.

Incorporation by reference

Like many solutions in engineering, incorporation by reference was born out of necessity. However, unlike most engineering issues, it did not directly address a physical construct.

Fire, life safety, and smoke control in mixed-use buildings

Engineering mixed-use buildings is a fine art—specifiers must combine multiple engineered systems for several business and residence types into one structure. Fire protection engineers focus on these diverse structures with various fire and life safety techniques.

Mechanical and plumbing systems in mixed-use buildings

Engineering mixed-use buildings is a fine art—specifiers must combine multiple engineered systems for several business and residence types into one structure. Mechanical systems (HVAC) and plumbing systems must be carefully designed and aligned.

Integrated controllers for HVAC applications

The SmartME Zone Controller, the AdvancedHVAC Input/Output Controller, and the EB-50GU-A Central Controller by Mitsubishi Electric Heating and Cooling combine to support enhanced functions.

Getting to the bottom—and top—of PUE

When developing data center energy-use estimations, energy engineers must account for all sources of energy use in the facility: computers, cooling plants, and other related equipment. Learn how to itemize power usage efficiency (PUE).

Coil system for rooftops

Lennox Industries Inc. has expanded the availability of its Environ Coil System to 4-, 6-, 13-, 17.5-, and 25-ton Energence rooftop unit models, completing the product lineup to 25 tons.

Geothermal comfort system

GeoStar’s Sycamore Series geothermal comfort system combines a variable capacity compressor with a variable speed blower motor and a variable speed loop pump.

Engineering systems in manufacturing, industrial buildings: HVAC systems

Manufacturing and industrial facilities have some unusual engineering requirements, especially air handling, power needs, and fire/life safety systems. Air movement and air quality issues are discussed.

Engineering systems in manufacturing, industrial buildings: Codes and standards

Manufacturing and industrial facilities have some unusual engineering requirements, especially air handling, power needs, and fire/life safety systems. Take a look at key codes and standards engineers must adhere to.

Data center cooling system

Emerson Network Power's Liebert DSE room-based data center cooling system now includes a 80, 85, and 150 kW units along with the 125 kW unit.

Study outlines strategies hospitals can implement to reduce energy use by 62%, save money

I found this study yesterday that identifies a process for newly constructed hospitals to integrate architectural, mechanical and central plant systems to reduce energy consumption by an average of 62%.

Building renovation gives valuable artifacts a new home

Smithsonian museums get an award-winning climate-controlled facility for their extensive collections.

Thermostat automation for HVAC controls

Daintree Networks Inc.’s ControlScope 3.0 extends control to HVAC applications with programmable thermostat automation.

ASHRAE call for papers

ASHRAE is seeking papers for its 2014 Annual Conference, which will be held in Seattle, June 28 to July 2, 2014.

Designing labs, research buildings: Codes and standards

Labs and research facilities house sensitive equipment and must maintain very rigid standards. Codes and standards must be adhered to, with special attention to codes unique to these buildings.

2013 40 Under 40: Douglas Hundley Jr., 38

Principal, CMTA, Prospect, Ky.

2013 40 Under 40: Scott Miller, 35

Associate, Shaffer Baucom Engineering & Consulting, Lakewood, Colo.

2013 40 Under 40: Bradley Perrott, 33

Senior Project Manager, Matern 
Professional Engineering, Maitland, Fla.

2014 NEBB conference: Call for abstracts

NEBB is seeking abstracts for its 2014 conference, which is being held from April 3 to 5, 2014, in Fort Lauderdale, Fla.

Air monitoring issues when commissioning a new facility

One of the most critical steps facility managers can take when seeking to understand air-monitoring in a new facility is committing to a rigorous commissioning process.

NEBB building enclosure seminar

NEBB's seminar on building enclosure testing is being held Sept. 9 to 11, 2013, in Washington, D.C.

Sports, entertainment venues: HVAC systems

Sports arenas and entertainment facilities involve complex engineering solutions. Five consulting engineers offer advice on HVAC, ventilation, indoor air quality, and more.

Seminar for HVAC design engineers

The Mid-Atlantic Regional Seminar by AABC is scheduled for May 17, 2013, in Baltimore.

Two-pipe VRF zoning unit

The R2-Series PURY-P72 variable refrigerant flow zoning cooling and heating system features complete zone control, flexibility, and ease of installation.

Energy harvesting solar plexicon

The expanded Titus Plexicon line of displacement ventilation systems from Titus HVAC includes solar capabilities.

Geothermal heat pump

The Envision2 Compact Series by WaterFurnace International is available in 3/4- to 6-ton capacities.

Tankless water heater

The Innovation 1350 water heater by AERCO is designed for new construction and retrofit.

VRF zoning system

The S-Series PUMY-P60 model by Mitsubishi Electric Cooling & Heating is a 5-ton, single-phase VRF zoning system.

Ventilation retrofit improves energy, IAQ

Duct-sealing technology helps high-rise reap energy savings, improve indoor air quality, and enhance comfort level for tenants.

Educational experience: Codes, standards in K-12 schools

Engineering work on K-12 schools is complex—and not just because of dwindling school budgets. The facilities must meet a broad range of exacting standards coming from officials and state regulatory bodies, in addition to meeting energy efficiency standards. An overview of codes and standards follows.

Indoor pool dehumidifier

Seresco USA Inc. has introduced the Protocol NP Series, an indoor swimming pool dehumidifier technology.

Pressure reducing valve

The 3350 is suitable for systems with fill pressure requirements of 10 to 50 psi and features a fast-fill button with automatic reset.

HVAC drive

Danfoss VLT Drives’ NEMA/UL Type 4X VLT HVAC Drive is a robust drive delivering reliable operation in harsh environments.

Ventilation unit

Titus HVAC’s Temperature and Ambience Optimizer (TAO) is a chilled beam displacement ventilation unit.

Energy recovery system

SEMCO introduces the eQ Series, an outdoor air energy recovery system.

VRF for light commercial spaces

The VRF by Mitsubishi Electric Cooling and Heating can operate as low as 22% of total system capacity for maximum energy efficiency.

A glimpse of the HVAC, BAS market

Here is the story of the mechanical, or HVAC, engineer. Take a look at this snapshot of where your business stands today.

VAV systems and return air balancing

The ability to balance return inlets requires some thought and evaluation.

Hydronic system creation software

The FloPro Team services by Taco is a free program that offers heat loss design suites and builds and specify components for water heating and HVAC applications.

Scroll compressor series

The R410A scroll compressor series by Danfoss operate at low temperature ratios for higher efficiency in part-load conditions.

Energy recovery wheel

The energy recovery wheel option by Daikin McQuay recovers 75% of energy from exhaust air steam.

Circuit cooling tower

PF2 closed circuit cooling tower by Baltimore Aircoil

AFD chiller

Duplex chillers by Trane feature adaptive frequency drives on units up to 3,000 tons.

Solar-powered displacement unit

The solar Plexicon by Titus HVAC uses an energy harvesting platform for auto-changeover action.

Dew point, temperature probe

The RH-AS2 probe by GrayWolf is available for HVAC/OH/FM/IAQ meters.

Natural fiber insulation

Titus HVAC’s EcoShield is a natural fiber insulation made from natural cotton.

How to select an air handling unit

Air handling units come in all shapes and sizes. Learn to balance and prioritize all of the choices related to performance, efficiency, maintainability, and space constraints.

ESD names Squillo VP

Thomas Squillo, an expert in HVAC design and analysis, has been named vice president at ESD. He will be leading the mission critical facilities group.

Seminar for fume hood performance

NEBB's fume hood performance testing seminar will provide an overview of Fume Hood Performance Testing in accordance with the NEBB Procedural Standard. It is scheduled for March 4-8, 2013, in Kansas City, Mo.

Variable-speed water-source heat pump

Variable-speed water-source heat pumps by Trane now include Tracer UC400 controls.

HVAC transmitters

The HygroFlex1 series by ROTRONIC enable users to change the scale and calibrate and adjust the transmitter.

Designing energy plants the smart way

A critical review of the expected spectrum of operating loads, including the maximum design, average, low, and minimum loads, is necessary to develop a generating plant design.

Energy-harvesting solar displacement unit

The Titus Plexicon uses a wireless, energy-harvesting process to power the unit to heat, cool, and use solar energy as its power source.

Mechanical systems in hospitals, health care facilities

With daunting aspects such as ever-changing codes and standards, increasing medical complexity, and dwindling capital budgets, hospitals and health care facilities are among the most challenging building projects.

Ceiling-concealed indoor units

Mitsubishi Electric Cooling and Heating's PEFY-P72 and PEFY-P96 single-phase ducted indoor units include a motor designed to provide up to 60% energy savings over previous generation equipment.

High on the energy hog

An example of a carefully planned successful energy and cost savings program was carried out by the Harley Davidson Motor Co. during the late 1990s.

Quick savings solutions

Design considerations like variable frequency drives are approaching the cost of motor starters, which allow for choices that weren't possible until now.

Economics of energy efficiency: Beyond ROI

Engineers and building owners often focus on payback periods and return on investment as economic decision-making thresholds for energy efficiency investments. However, there are other parameters that are more accurate and effective for investments in building systems.

Using BACnet in building automation

BACnet is constantly evolving and embracing new technologies, such as wireless networking and Smart Grid applications.

TLC names Tampa Bay mechanical engineer

TLC Engineering for Architecture has named Heather Tank as mechanical project engineer for its Tampa Bay office.

Designing office space: HVAC systems

Office building clients demand sustainability, flexibility, and cost conservation in both new and existing buildings.

Engineers put control valve to the test: Web exclusive

Pressure independent control valve solves instability problems, saves energy, and reduces equipment maintenance.

NEBB appoints new president

Stanley Fleischer, the president of Seneca Balance, has been named the president of the National Environmental Balancing Bureau (NEBB) for 2013.

Fan assist module

The PowerAire Quad fan assist module by Tate manages cooling requirements for dense server racks and blades.

Gas-fired unit heater

Modine Manufacturing's PTP-series gas-fired unit heater.

Smoke control system guidelines added

Guideline 1.5-2012, The Commissioning Process for Smoke Control Systems, describes the technical requirements of the commissioning process described in ASHRAE Guideline 0-2005.

HVAC system

The SunSource HVAC system developed by Lennox can effectively double the rooftop unit’s efficiency rating, integrating a rooftop unit, solar modules, and microinverters to power commercial buildings.

Screw chiller

The YORK YVAA air-cooled variable-speed screw chiller was manufactured by Johnson Controls for efficiency, reduced sound, and sustainability.

Heat pump scroll compressor range extended

The Performer PSH heat pump scroll compressor by Danfoss extended its range with six smaller capacity models, giving the compressors a heating capacity range of 19 to 80 kW.

Directional airflow panel

Tate's Directional Perf directs airflow from the raised flow plenum to data center racks where cooling is needed.

HVAC building management system

The ComfortPoint Open Building Management System by Honeywell controls and optimizes heating and cooling equipment in facilities.

Retro-commissioning guidance: An overview

While starting from scratch on a not-yet-built structure can be taxing, engineering systems on existing buildings presents a unique set of challenges. Here, experts in the field offer advice on how to best make such systems fall into place.

HVAC controller

The HVAC Alpha controller by Titus integrates universally with BACnet building management systems.

School District of the City of York, Arthur W. Ferguson Elementary School

New construction: School District of the City of York, Arthur W. Ferguson Elementary School; Barton Associates Inc.

School of Education Building, University of Wisconsin-Madison

Addition to existing building: School of Education Building, University of Wisconsin-Madison; HGA Architects

William Jones College Preparatory High School

New construction: William Jones College Preparatory High School; Primera Engineers Ltd.

Energy audits, Cantor Art Center, Cecil H. Green West Library

System overhaul: Energy audits, Cantor Art Center and Cecil H. Green West Library; Salas O'Brien

Compton Family Ice Arena. University of Notre Dame

New construction: Compton Family Ice Arena. University of Notre Dame; Peter Basso Associates

University Health System—Trauma Tower, Central Plant Expansion

New construction: University Health System—Trauma Tower and Central Plant Expansion; TMAD Taylor and Gaines (TTG)

BRAC 133 Office Towers

Existing building retrofit: BRAC 133 Office Towers; Sebesta Blomberg

1st Army Headquarters Renovation

Existing building retrofit: 1st Army Headquarters Renovation; Pond and Co.

Portland Community College Newberg Center

New construction: Portland Community College Newberg Center; Interface Engineering Inc.

2013 AHR Expo details

The 2013 AHR Expo will be held Jan. 28 to 30, 2013, at the Dallas Convention Center.

Call for papers: ASHRAE 2013 conference

ASHRAE has announced a call for papers on current research on core HVAC/R applications and systems for its June 2013 conference in Denver.

Dalkin McQuay meets DOE’s rooftop unit challenge

Dalkin McQuay, competing with four other manufacturers, was the first to complete the DOE's challenge, which is designed to help save energy by as much as 50% in buildings.

Southland opens California campus

Southland Industries' newest campus in Garden Grove, Calif., is 42,000 sq ft, features HVAC and monitoring systems, and has achieved LEED Gold certification.

Nitrogen-charged air conditioner, heat pumps

Nitrogen-charged air conditioner, heat pumps by Lennox are designed to accommodate ambient temperatures up to 125 F.

Geothermal heat pump series

Trilogy 40 series of geothermal heat pumps is from ClimateMaster.

Heat pump scroll compressor

Danfoss offers the Performer PSH heat pump scroll compressor.

2012 40 Under 40: Andrew Lasse, PE, LEED AP, 34

Associate Principal, Interface Engineering, Portland, Ore.

2012 40 Under 40: Michelle Nelson, PE, LEED AP BD+C, 30

Mechanical Engineer, AECOM, Arlington, Va.

Advanced Energy Design Guide for large hospitals

The AEDG for large hospitals is design to provide recommendations for achieving 50% energy savings by going beyond the minimum code requirements.

2013 NEBB Annual Conference: Call for Papers

The National Environmental Balancing Bureau is seeking papers for the 2013 conference, which will focus on Solutions for Optimizing High Performance Buildings.

Coil design for air conditioning solutions

Trane has added a rugged microchannel aluminum coil construction to its HVAC units.

Hydronic boilers

NH150-DV and NH199-DV tankless hydronic boilers from Noritz.

Heat exchanger

Bell & Gossett’s BPX BPDW brazed plate heat exchanger can be used as a refrigerant condenser, an evaporator, an oil cooler, and in other applications.

Compressor with communications

Emerson Climate Technologies, a business of Emerson, manufactured this Copeland Scroll compressor with CoreSense communications modules to give air conditioning customers communication, protection, and diagnostics onboard.

Rooftop ventilation system

Modine Manufacturing’s Atherion is a 15- to 30-ton packaged rooftop ventilation system designed to meet ASHRAE 189.1 and 62.1 standards for efficiency and indoor air quality.

Hydronic heat exchanger

With Mitsubishi Electric Cooling and Heating’s variable refrigerant flow PWFY hydronic heat exchanger, a closed-circuit water heater available in two sizes and configurations, daily cost of hot water generation is four times less than with a gas heater and 10 times less than with an electric heater.

Air conditioner

MovinCool’s CMW30 water-cooled, ceiling-mount air conditioner is designed for applications with dense heat loads, where an air-cooled model cannot be used due to the lack of available space for hot exhaust air.

Wireless sensor system

Powercast Corp.’s Lifetime Power wireless sensor system for HVAC control and building automation powers wireless sensor nodes without batteries or wires, but instead with remote transmitters that broadcast radio frequency energy.

Programmable HVAC/R controller

The Modicon M168 programmable logic controller was designed by Schneider Electric to help OEMs and end users improve performance, optimize costs, and speed time-to-market for HVAC/R machines. Using flexible architectures, customized design, and SoHVAC software, which allows single programming and commissioning, this controller offers solutions for small/medium chillers, rooftop units, refrigeration racks, and air handling units.

Chiller plant

The EarthWise ice-enhanced, air-cooled chiller plant from Trane allows building owners, mechanical system designers, and operators to take advantage of less expensive off-peak energy by making ice, which is stored and used for cooling during expensive peak periods.

In-floor chilled beams

Tate’s in-floor active chilled beams bring water under the floor to cool air directly at the perimeter of a building, avoiding many concerns of overhead chilled beams including spider ducting, damage from leaking water lines, and latent loads producing condensation.

Solar-powered diffuser

Titus HVAC’s EOS is a solar-powered diffuser featuring wireless energy harvesting. This diffuser addresses the imperfect split compromises commonly found in a building’s perimeter system, where half the air discharge is supplied in the heating and half in the cooling configuration.

Control system for modular boiler plants

AERCO Control System (ACS) is a flexible controller designed to maximize energy savings in modular boiler plants.

Intelligent boiler control technology

RBT-3000 Low Water Cut-Off and Fuel Economizer from McDonnell and Miller

Chilled beam application controls

Taco's iWorx chilled beam (CHB) controllers provide full integration of CHB systems.

Modular water-to-water series

The Tranquility Modular Water-to-Water (TMW) Series by ClimateMaster is available in 360 and 600 sizes.

EPA allows facilities more time for boiler tune-ups

The U.S. Environmental Protection Agency issued a no action assurance (NAA) letter to facilities that haven't upgraded source boilers at their facilities yet. The NAA will remain in effect until Oct. 1, 2012, or the effective date of a final rule.

Analyze the lifecycle of HVAC systems

Performing a series of cost analyses when designing HVAC systems is an economically justifiable method to selecting the appropriate design solution.

Volume water heaters

Mighty Therm 2 boiler by Laars combined with 80-gal storage tank

Rooftop geothermal heat pump

The Tranquility Rooftop (TRE) Series geothermal heat pump by ClimateMaster is available in 3- to 20-ton capacity units.

Large-diameter PP-R pipe

Aquatherm's PP-R pipe has been extended to Greenpipe lines up to 18 in. diameter and Climatherm lines up to 24 in. diameter

Commercial rooftop unit

The Rebel commercial rooftop unit system from Daikin McQuay functions as a VAV heat pump unit down to 3 tons.

Design system design software upgraded

The Taco FloPro Designer upgraded graphic interface quickly provides the user with a detailed heat loss analysis and has an OEM boiler selection function.

NEBB appoints director of technical services

Tom Meyer, a veteran with more than 25 years of hydronics experience, will be responsible for the quality of NEBB's technical programs as its director.

Condensed boiler

Cleaver-Brooks' ClearFire-C is a condensing boiler available up to 3,300 MBTU.

Solid state relays and contactors

Carlo Gavazzi has released its RG Series solid state relays and contactors.

Modular central plant helps library save energy, improve comfort

Installation of a modular central plant resulted in a 30% energy savings over a traditional plant for an Arizona library and recreation center.

2013 AHR Expo in Dallas

The 2013 AHR Expo will be returning to the Dallas Convention Center for the first time since 2007.

Universal mounting kit

Electro Static Technology's Split uKIT is for HVAC service contractors and plant maintenance departments.

Balancing energy and indoor air quality

Engineers can create a balanced approach to the energy and indoor air quality (IAQ) trade-off with dedicated outdoor air systems that fit the needs of the facility and its inhabitants.

Contact-cooled air compressor

The R-Series 55 to 75 kW/75 to 100 hp contact-cooled air compressors from Ingersoll Rand are available.

WSP Flack + Kurtz promotes Frank Muscarella

WSP Flack + Kurtz has promoted Frank Muscarella, PE, LEED AP, to senior vice president.

Modular ventilation system simplifies retrofit at San Francisco landmark

The Fanwall Technology modular fan-cube system replaced a single, large air-handler fan, lowering costs and reducing energy use at the Transamerica Pyramid.

Air-cooled chiller plant

Trane has released the newest EarthWise system.

2012 NEBB Annual Conference

The National Environmental Balancing Bureau (NEBB) conference is scheduled for April 26-28 in Anaheim, Calif.

Rooftop ventilation unit

The Atherion commercial packaged ventilation unit is offered by Modine Manufacturing Co.

HVAC remote controller

The PAR-30MAAU remote controller from Mitsubishi Electric Cooling + Heating can control up to 16 indoor units in commercial applications.

Water source heat pumps

A-Vintage horizontal and vertical water source heat pumps by Mammoth.

Electrically operated expansion valves

Danfoss has added the ETS 6 to its series of electrically operated expansion valves.

Measures of efficiency

Building systems data can be used to manage equipment operations and determine how to run the building more efficiently.

Building portfolio EMS

Incenergy Building Portfolio EMS is an HVAC retrofit solution that upgrades and manages HVAC systems.

Water source heat pump (WSHP)

Daikin McQuay's SmartSource WSHP product line offers high energy-efficiency ratings in a variety of sizes and additional features.

DOE releases new version of energy modeling software

EnergyPlus v7.0 is designed to be 25% to 40% faster in calculating the energy required to heat, cool, and light a building.

Dehumidification system

Munters combines desiccant dehumidification wheels and refrigeration to allow DryCool HD systems to deliver cool, dry air for commercial applications.

Presenters sought for Energy Modeling Conference

ASHRAE's Energy Modeling Conference - Tools for Designing High Performance Buildings is designed to guide building design professionals on what does and doesn't work when using currently available modeling tools.

Market for energy efficiency in buildings to surpass $100 billion by 2017

A report by Pike Research predicts that the market for energy efficiency in buildings will pass $100 billion by 2017, an increase of more than 50% from the current market value of $67.9 billion in 2011.

Natural ventilation: Who, what, when, where, why, and how

What you need to know when considering natural ventilation or a mixed-mode scheme, specifically with regard to the use of climate data in the evaluation of natural conditioning potential by season and climate zone.

Commercial outdoor units

Mitsubishi Electric expands its commercial Y-Series outdoor units

Geothermal system

ClimateMaster's 22 Digital (TZ) Series

New AHRI certified logo transition under way

As of Jan. 1, 2012, all certification programs under AHRI’s certification umbrella will be brought under one certification program and logo: AHRI Certified.

Energy transmitter

Badger Meter's Data Industrial 340 BN/MB Btu Energy Transmitter

Houston reaps benefits of energy-efficient equipment

The city of Houston recently implemented a number of energy conservation measures including replacing existing HVAC equipment, making central plant improvements, updating building management systems, retrofitting existing light fixtures, adding lighting controls, and installing new plumbing fixtures.

Chilled water air conditioners

Uniflair Chilled Water Air Conditioners by Schneider Electric are attuned to the cooling concerns of data center owners and operators.

Make sense of retro-commissioning

Retro-commissioning, or RCx, is the practical application of the commissioning process to existing buildings. The goals and objectives for applying the process, as well as the level of effort, will vary depending on the needs of the owner, budget, and condition of the equipment.

Alloy water heaters

PVI Industries' water heaters are manufactured from AquaPLEX, which allows water to be stored at greater than 200 F continuously without effect.

Updated BAS

Trane's Tracer ES BAS is a Web-based systems integration solution, designed to optimize building efficiency and provide facility managers with better tools to do their job.

Infrastructure for hydronic heating, cooling

Taco’s LoadMatch is an advanced infrastructure that enables efficient hydronic heating and cooling.

Advanced controls for refrigerant chiller

Emerson Network Power's Libert iCOM controls have been added to the XDC refrigerant chiller.

Improving energy audits with technical retro-commissioning

Using technical retro-commissioning to understand building operation can significantly improve energy audit reports.

Air-system awareness blowing in the wind

Educate yourself on energy-saving approaches to improve air movement.

Injection mixing system

Taco's LOFlo injection mixing system

Field-assembled cassettes

Airxchange FA series field-assembled cassettes

Hybrid geothermal system considerations

Install a hybrid geothermal heat pump system and reduce the cost of implementing geothermal heating and cooling on your building project. A hybrid system reduces the peak capacity of your ground loop, letting you install a smaller, less expensive ground heat exchanger.

ASHRAE announces Student Design Competition winners

ASHRAE’s 2011 Student Design Competition winners include students from the United States and China.

Study: Hybrid systems for HVACs

The Energy Center of Wisconsin's report reveals that a hybrid HVAC system is more energy-efficient than a standard system, but is also more expensive.

In-floor active chilled beams

Tate's beams showcase the benefits underfloor air distribution.

ASHRAE energy efficiency courses

ASHRAE's Learning Institute (ALI) is offering three new courses related to energy efficiency and ASHRAE standards this fall through its online site.

IAQ industry growing

Demand for cleaner air has helped the indoor air quality (IAQ) industry grow, according to a report by Frost + Sullivan; a lack of innovation and high costs remain challenges.

Research grant offered by ASHRAE

ASHRAE is accepting proposals for innovative designers, thinkers in the HVAC+R field.

AHR Expo Innovation awards

The AHR Expo Innovation Awards competition will mark its 10th anniversary at the Chicago show Jan. 23-25, 2012.

Light commercial rooftop units

RQ Series Rooftop Units by Aaon provide energy-efficient airflow.

WSP Flack + Kurtz promotes international engineers

WSP Flack + Kurtz, San Francisco, promotes Wayne Gaw and Ding-Guo Xie to senior positions.

BTU energy transmitter

340 BN/MB Btu Energy Transmitter by Badger Meter provides precise thermal measurement.

Networking device

Trend Open Network Node is a networking device that enables the Trend system to interface and integrate with third party systems.

High-efficiency refrigerant units

ClimateMaster’s Tranquility Modular Water-to-Water large high-efficiency series refrigerant units are available in a range of sizes.

Brady: three new associates

The North Carolina HVAC company added three new employees to the Triangle team.

U.S. air conditioning market report

A proprietary report provides details about the United States' air conditioning market.

NEBB conference registration opens

The National Environmental Balancing Bureau (NEBB) has opened registration and announced technical sessions for its 2011 conference.

High Performance Building Conference

The annual conference, scheduled for March 2012 in California, is designed to help promote energy savings for building design and architecture.

NYC landmark open with integrated engineering systems

Buro Happold provided structural engineering, MEP engineering, lighting design, and fabrication modeling for the New Amsterdam Plein and Pavilion that commemorates New York City's Dutch founders.

2011 40 Under 40: Ian Dempster, 37

Senior Optimization Consultant, Optimum Energy LLC, Seattle

2011 40 Under 40: Hormoz Janssens, PE, LEED AP, 37

Principal, Interface Engineering, San Francisco

2011 40 Under 40: Bungane Mehlomakulu, PE, LEED AP, 32

Principal, IBE Consulting Engineers, Sherman Oaks, Calif.

2011 40 Under 40: John Prescher, PE, LEED AP, 34

Senior Mechanical Engineer, Stanley Consultants, Minneapolis

Rooftop equipment mount

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Pocket filter

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Fabric ceiling diffuser

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Boiler with control system

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Airflow panel

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Variable air volume damper

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Radiant heating/cooling mat

Finalist in HVAC/R in Consulting-Specifying Engineer's 2011 Product of the Year competition

Building automation controllers

Finalist in Networked Building Automation Systems/Controls, Energy Management Systems in Consulting-Specifying Engineer's 2011 Product of the Year competition

National labs partner with Dow Chemical Co. to improve cool roof technology

The groups aim to support research that will increase energy savings from existing cool roof technologies by more than 50%.

EnOcean hires Keith Garris and Christina Jones

The new hires will collaborate with OEMs to identify new projects for EnOcean-enabled products.

Call your client when energy prices go up

How do you take advantage of the latest increases in energy prices?

Energy recovery unit

The Munters Micro-Z packaged air-to-air sensible energy recovery unit can deliver fresh outdoor air needed for ventilation.

Wall-hung boiler

The Mascot II wall-hung boiler by Laars provides a high-efficiency, fully modulating, compact system for industrial applications.

Modular chillers

Multistack’s MS modular chillers feature OSHPD pre-approval certification, meeting ASCE 7-05 Chapter 13 safety and security guidelines.

Digital scroll compressors

Greenheck’s Model ERCH, VER energy recovery ventilators gains digital scroll compressors, offering cooling capacity turndown from 10% to 100%.

Airtec Butterfly Damper features built-in, virtually airtight, permanent gasket

Airtec’s Butterfly Damper is made of a corrosion-proof polymer, offers built-in permanent gasket, helps reduce off-season drafts, mold-generating condensation on diffusers

Energy recovery, dehumidification unit

Munters produces the DryCool ERV, an energy recovery and dehumidification unit designed to reduce operating costs, keeping space consumption to minimum.

IPS selects industry veteran to lead Mechanical Engineering Group

Nejat Babür, P.E., LEED AP has been appointed to lead IPS’ Mechanical Engineering Group

CFE Media and AABC to Provide Building Systems Content to Consulting Engineers

CFE Media and the Associated Air Balance Council (AABC) will deliver specialized content for consulting engineers and engineering professionals looking for information about how the test and balance process can ensure that their building systems work as intended.

Independent humidity, temperature control

Munters DryCool Standard provides operators with ability to control temperature, humidity independently.

Chiller boosts sustainability

Johnson Controls Inc. introduces YORK model YK-EP "Energy Plus" chiller, designed to reduce the total cost of ownership, improve plant sustainability.

CFE Media LLC and National Environmental Balancing Bureau Partner to Provide Content

CFE Media LLC and National Environmental Balancing Bureau Partner to Provide Building Systems Content to Consulting Engineers.

Transformers – 2010-11-08

Foster Transformer Co. has announced that five of its transformers have been certified by TUV Rheinland to EN 61558-1 and -2 as safety isolating transformers with safety extra-low-voltage outputs.

Commissioning on the rise

Specialized commissioning, retrocommissioning, and testing, adjusting, and balancing firms are increasing, with emphasis on specialized work.

City Hall Gets an Overhaul

Integrating Lighting and HVAC Retrofits: Case Study

Lighting control relays

Lighting Control Relays Bring Added Durability to Coordinated Area Lighting Applications.

HVAC heat exchanger coils

Heat exchanger coils benefit from smaller diameter copper tubes

Portland architect developing energy-saving air conditioning system

Architect John Breshears has created an air conditioning system inspired by gills, human lungs, and plant leaves.

Editor’s Viewpoint

Great to be back

Lab exhaust system

The Vektor ERS Energy Recovery System from Greenheck helps laborotories achieve energy savings by reducing operational costs of a building's heating and cooling systems. The system uses a runaround coil loop to remove energy from contaminated exhaust airstream and transfer the energy to the supply air system, which prevents the possibility of cross contamination.

Retrofitting with condensing boilers

Boilers typically are replaced after they have been in service for 20 to 30 years, or more. This relatively long service life, as well as the significant amount of energy a boiler uses, makes all decisions related to boiler replacement critical from financial, operational, and sustainability standpoints.

Application Manual for Airflow Measurement Stations

AMCA International has reaffirmed AMCA 600-06, Application Manual for Airflow Measurement Stations, which provides important points to be considered when designing or specifying HVAC and other applications in installations requiring airflow measurement stations (AMS) for use in temperatures from -30 C to +120 C (-20 F to +250 F), pressures to 250 Pa (10 in.

I spy an inspirational engineer

Cindy Cogil, PE, LEED AP

Condensing boiler – 2010-03-01

The CREST heating boiler from Lochinvar is offered in five models with capacities of 1.5, 2.0, 2.5, 3.0, and 3.5 million Btu/hr inputs. Each model features an advanced burner and combustion system designed to provide turndown capabilities and improve seasonal efficiencies. The boiler includes the SMART TOUCH operating control platform, which is equipped with an 8-in.

Noncondensing boiler

Using AluFer heat transfer technology to reach efficiency levels up to 88% while achieving low emissions, the ClearFire Model CFW noncondensing carbon steel boiler from Cleaver-Brooks Inc. operates via a standard ModBus control protocol. The boiler is available with inputs ranging from 400,000 to 2,400,000 Btu and features 5:1 turndown and Falcon controls that integrate up to eight boilers.

Automatic balance valves

The Low Flow Circuit Sentry automatic balance valves from Bell & Gossett are designed for automatic flow limiting style balancing of both HVAC cooling and heating circuits. Designed for small coils that keep constant fluid flow, the valves automatically compensate for fluctuating pressure conditions.

HP’s newest data center opens with a unique cooling set up

In northeast England, HP's Wynyard Center opened this week with a unique cooling set up and an innovative design.

Guidance on clearing indoor air through improved IAQ

Guidance for achieving enhanced IAQ is available from five leading building industry associations and the U.S. EPA.

Air unit

The Model MPX from Greenheck is a 100% outside make-up air unit with an integral packaged DX cooling system. The unit is designed for kitchens, corridor ventilation, and areas with contaminated air where energy recovery is not permitted. The unit uses R410A refrigerant and features 2-in. double-wall cabinet construction, hinged access doors, an airfoil plenum fan, and 2-in.

Report: HVAC/R manufacturers lack guided selling

A recent Cincom survey notes that none of the commercial HVAC/R manufacturers have true predictive guided selling systems.

HVAC alliance formed

The ClimateTalk Alliance will establish a common communication infrastructure for HVAC and smart energy devices, enabling easy interoperability of diverse applications across multiple protocols.

HARDI issues call to action during RSES Conference

Adapting to an increasingly legislative environment can win quality contractors a strategic advantage.

ASHRAE Handbook now available online

Available online, the ASHRAE Handbook will provide instant access to all four of the most recent ASHRAE Handbook volumes in one location.

Trane converts unitary products from R-22 to R-410A ahead of schedule

Trane, a business of Ingersoll Rand, completed a global conversion effort from hydrochlorofluorocarbons (HCFC) R-22 to the non-ozone-depleting hydrofluorocarbons (HFC) refrigerant, R-410A, for its entire unitary product line in the Americas. Trane accomplished this to ensure full compliance with federal U.

DOE releases new versions of EnergyPlus and OpenStudio

The U.S Dept. of Energy (DOE) released updated versions of its EnergyPlus simulation software for modeling HVAC and other building energy flows. Additionally, the DOE released its OpenStudio plug-in for Google's SketchUp program. Available for Windows, Linux, and Macintosh operating systems, EnergyPlus 4.

Study: HVAC control market poised for growth

The HVAC market is mature and stable, increasing the need for controls and BAS.

HVAC controls

With nine model variations, the modular System 450 series from Johnson Controls Inc. can monitor and control temperature, pressure, and humidity simultaneously. These microprocessor-based controls for HVAC and industrial controls applications allows users to monitor and control multiple control loops.

Extended-surface filters compared to conventional filters

A MERV-11 extended-surface filter bank without a pre-filter was compared to a conventional 8-pocket MERV-11 filter with a MERV-4 prefilter.

High-efficiency heating with VRV

Daikin AC (Americas) Inc. introduces the latest development in Daikin's energy-saving variable refrigerant volume (VRV) systems in North America, the VRV III-C, designed especially for high-efficiency heating in colder climates. The system allows Daikin's customers to obtain heating output and efficiency levels at low temperatures that were not possible before.

The voice of schools

View the full story, including all images and figures, in our monthly digital edition A school is the voice of a community’s outlook and commitment to its future. One can determine how healthy a school is by listening to it. Are children playing and laughing on the school playground? Are there well-attended performances in its theaters and the buzz of excitement in its hallways? Are the grounds being actively used by students for learning and physical education, and being routinely maintained by buildings and grounds staff? MEP systems have voices, too—the sound of air moving through a grille, the start-up of a boiler, the alarm of a fire or security event.

MEP Insider – 2009-08-11

Recent promotions and hires

DOE allots $300 million in rebates for energy efficient appliances

Stimulus money will be given to states to offer rebates on Energy Star and other efficient products.

Philips acquires Teletrol Systems

Teletrol products will add to Philips' lighting controls and energy management portfolio.

Industry roundup – 2009-07-07

Contracts awarded, and other industry news

Center for Architecture earns LEED platinum

The center in Portland, Ore., generates its own energy, increases lighting efficiency, and uses recycled materials to reduce its carbon footprint by 82%.

Water-to-water heater

Use precise temperature control to meet hot water requirements with SmartPlate water heaters from AERCO. With brazed plate and plate-and-frame designs for high-efficiency condensing boilers, the water heaters help reduce system energy costs and maintain ±2 F temperature control. The heaters can support up to 90 gpm domestic loads at a 100 F rise and have real-time load-tracking capabilities.

When buildings bite, owners suffer

View the full story, including all images and figures, in our monthly digital edition I was discussing Michael Ivanovich's recent Viewpoint column “ When sheep bite, buildings suffer ” (May, page 5) with a few friends, and one of them, Dave, seemed kind of upset. I asked what was up and he related how facilities people know more about their building than the design engineer. Obviously, he took my casual remark about designing green buildings for uneducated, untrained, uncaring O&M staff the wrong way.

Lighting partnership may lead to energy savings

Advanced Control Technologies has announced a partnership with the Lagotek Corp for work on a new building intelligence system.

Modeling water heaters

A. O. Smith Water Products Co. offers 3-D models for specifying engineers via Revit.

NYC sees economic boost in ‘green building’ effort

Are you an HVAC specialist looking for a job? New York City is hiring.

Air conditioning control

Provide full-capacity modulation for all sizes of direct-expansion A/C system that use R-410A refrigerant with the APR-410 control from Rawal Devices Inc. The control continuously matches A/C system capacity/output to changing load conditions by varying refrigerant flow according to suction pressure, which changes the temperature of air crossing the coils. The control's designed applications include multiple-evaporator zoning, in which each evaporator conditions a different zone. www.rawal.com.

Thermostat

Control temperature and humidity with one device with the TCY3 Series from Vector Controls. The stand-alone controller has two control loops for two-and four-pipe HVAC systems. The device is configurable for each application through a on-board parameter-setting routine.

Scroll compressor

The Type MLZ line of refrigeration, scroll compressors from Danfoss includes 11 models of medium-temperature scroll compressors for commercial refrigeration applications. The compressors feature cooling capacities from 13,000 to 102,000 Btuh and users select the fluorinated refrigerants, including R-22, R-134A, R-404A, and R-507. The line is available in compressor, condensing unit, and package unit designs. www.danfoss.us #7.

Historic HVAC update gets ‘aye’ vote

The Illinois chapter of the American Council of Engineering Companies salutes efforts to revamp the HVAC system in the State Capitol, while preserving the historical structure.

ASHRAE/AIRAH issue a joint resolution on climate change

ASHRAE and the Australian Institute of Refrigeration Air Conditions and Heating (AIRAH) issued a joint resolution on climate change.

Delta Controls receives 2009 Best Practices Award from Frost & Sullivan

Delta Controls received the Frost & Sullivan Best Practices Award for Product Innovation & Differentiation.

Siemens, Telkonet manage school’s energy use

Siemens will work with Tennessee schools, and Telkonent with New York University (NYU), to provide retrofits and energy management systems at almost 200 structures.

ASHRAE publishes Load Calculations Manual

ASHRAE published a guidance book designed to improve the performance and efficiency of design as it relates to load calculations.

Gauging energy efficiency of buildings

A new ISO standard gives new-building engineers and designers a tool for improving energy savings of their structures.

Air dispersion system

UnderFloorSox designed by DuctSox Corp. contains a fabric HVAC ductwork for under-floor plenums to provide a even temperature throughout the facility. The units are 12 to 18 in.

Manual air flow regulators

The new line of HVAC manual air flow regulators from Rossi HVAC Hardware features the Everlock self-locking damper handle. The unit eliminates the need for a tool to unlock the handle. A thumb trigger unlocks the handle while releasing it triggers the automatic locking system.

Coursin named AHRI chair

The Air-Conditioning, Heating and Refrigeration Institute has picked Wisconsin-based HVAC/R executive Keith Coursin to lead its Board of Directors.

Temperature, humidity won’t sink this U-boat

View the full story, including all images and figures, in our monthly digital edition More than a half-century has passed since the German U-505 submarine was captured during World War II, but the curators at the Museum of Science and Industry in Chicago strive to keep the sub looking in fighting shape. Since the U-boat's capture in 1944, it has survived a near sinking, a treacherous tow from the Atlantic to the Great Lakes, and 50 years of bitter Chicago weather in its post as an outdoor exhibit at the museum. In 1997, the museum began a restoration project designed to preserve the U-505 and move it indoors to a climate-controlled environment. Presently, the submarine resides on a specially constructed 75 x 42 ft underground exhibit space at the Museum of Science and Industry.

Ignition control

The 35-72P gas ignition control from Fenwal Controls ignites the pilot flame on LP or natural gas heating equipment. The unit provides high energy sparking, a dependable flame sensing, and automatic control of the main gas valve. A custom control sequence within the system opens the main gas valve after the pilot flame is sensed. www.fenwalcontrols.com #6.

Event focuses on net-zero buildings

ASHRAE's "Countdown to a Sustainable Energy Future ... Net-Zero and Beyond" conference--scheduled March 29-30 in San Francisco--will tackle the role of policy, regulation, and engineering of net-zero structures.

Condensing economizer

The e++plus condensing economizer manufactured by Cleaver-Brooks achieves a peak efficiency of up to 90% depending on flow rates and the temperature of the incoming water. The unit recovers heat energy by preheating the boiler feed water. The control system ensures maximum condensing when firing natural gas.

Facility management platform

EBI R400 designed by Honeywell Inc. provides a unified and detailed view of HVAC, security, life safety, lighting, and energy systems across a network. The product features enhanced reporting capabilities, an improved facility model, and updated global scheduling. The software takes advantages of recent Microsoft SQL Server enhancements to ensure improved security and reporting.

Infrared gas heaters

Use positive pressure to push products of combustion through a steel combustion chamber with the PTS/PTU positive pressure tube heaters from Space-Ray.

Condensing boiler – 2008-10-01

The SYNC condensing boiler designed by Lochinvar Corp. combines stainless steel heat exchanger technology with modulating/condensing combustion to deliver thermal efficiency of up to 98%.

Association launches refrigerant buyback

A group representing HVACR contractors aims to help contractors recycle refrigerants while recuperating some of the associated costs.

Chicago rolls out green carpet for AHR EXPO

Green is the theme for the 2009 AHR EXPO, held in Chicago Jan. 26-28, 2009.

Safe HVACR contractors applauded

With its 2008 Safety Masters Club and Safety Award of Merit recognitions, Air Conditioning Contractors of America salutes contractors that focus on keeping workplaces safe.

HVAC&R R&D center under construction

Daikin and McQuay to build $50 million global R&D center.

Cooling rack

Add to data center computing and existing cooling infrastructure without adding to the overall heat load with the modular cooling system G2 bi-directional cooling rack from HP.

New HVAC&R commissioning guideline

ASHRAE Guideline 1.1 features specific tasks to successfully implement the commissioning process for HVAC&R systems and assemblies.

Some U.S. schools move to four-day school week

Following Utah's mandated four-day work week, some U.S. schools have voted for a four-day school week to save money on transportation, heating, and cooling. Twelve states already have established shortened school weeks.

Air conditioning contract awarded for Freedom Tower

McQuay International has been awarded a contract valued at nearly $15 million to supply air conditioning equipment for the Freedom Tower building in New York City.

Monitor temperature wirelessly

Make more informed technology decisions about wireless monitoring of temperature conditions.

White paper: Evolution of commissioning within a school district: provider and owner/operator perspectives

This paper discusses the evolution of commissioning within a school district that is currently responsible for 35 campuses in a fast-growing suburb of Sacramento, Calif.

Featured Product: Rooftop air conditioning unit

WeatherMaker rooftop units with Puron refrigerant mark improvement in both efficiency and replacement compatibility. The system uses Carrier's Novation heat exchanger technology to provide increased corrosion protection while reducing the amount of refrigerant consumed. The new series, ranging from 20 to 60 tons, allows various customizations for a number of different applications.

PEX tubing

Alumicor PEX-Al-PEX tubing from Zurn Industries offers all the benefits of cross-linked polyethylene tubing, plus it holds its shape when it is bent. The tubing bends easily but then stays in place thanks to a layer of aluminum that is sandwiched between two layers of PEX. This layer not only gives PEX tubing an easy-to-handle, malleable characteristic, it also improves heat transfer and acts as an oxygen barrier, which helps protect the boiler and all other non-ferrous system components from corrosion.

AHRI signs on Chinese HVACR manufacturers

AHRI, CRAA sign agreement that encourages Chinese HVACR equipment manufacturers to voluntarily participate in AHRI's performance certification programs.

Use TAB for optimal HVAC performance

Test and balance specialists ensure that a new HVAC system is meeting specifications.

DOE implements criteria for Energy Star water heaters

The U.S. Dept. of Energy recently announced Energy Star criteria for water heaters.

Condensing boiler – 2008-04-01

Aerco expands its Benchmark family with the Benchmark 1.5 Low NOx condensing, fully modulating boiler.

Wal-Mart to perform energy audits at state capitols

The retail giant signed a public-private partnership with the National Governors’ Assn. to provide energy audits of government buildings in state capitol complexes nationwide.

Industry roundup: partnerships, mergers, etc. – 2008-03-13

News from Earth Tech, Carrier Corp., Tomkins PLC, Schréder Lighting USA, Rheem Manufacturing, Barron Lighting Group, Philips Electronics North America Corp., Legrand North America, and W2 Architectural Lighting.

NEBB issues call for speakers

The National Environmental Balancing Bureau is seeking speaking proposals for the 2008 Annual Meeting and Educational Conference.

Commissioner Dian M. Grueneich to speak at NCBC

California Public Utilities commissioner Dian Grueneich will give the opening address at the 16th National Conference on Building Commissioning.

Munters EPX cooling system

Indirect evaporative cooling system uses a corrosion-resistant polymer heat exchanger to produce dry, cool air without refrigeration.

DuPont Fire Extinguishants acquires Chemtura FM-200

DuPont announced that it has completed its purchase of Chemtura Corp.’s fluorine chemicals business.

Remote energy monitoring system

System provides instant access to energy and HVAC/R systems data anywhere, anytime via the Internet. The new system combines ruggedized data logging hardware with built-in cellular communications and a web-enabled software platform. For more about HOBO from Onset, click here .

Monitor HVAC/R systems remotely

System monitor provides energy managers and facility managers with instant access to energy and HVAC/R systems data via the Internet.

Fenwal Controls Gas

The re-engineered 35-6X series of 24 V gas ignition controls has received international third-party approvals. The controls can be integrated into gas-fired appliances such as HVAC, boilers, commercial cooking equipment, radiant/infrared heaters and furnaces. The series includes a standard direct spark ignition control, a direct spark ignition control with combustion blower relay, and intermitt...

New Products for HVAC and Controls

HVAC design Web site, antimicrobial coatings, online database for equipment service life and costs, evaporative cooling system, and iris dampers.

Survey gauges industry readiness for 2010 phase-out of R-22 equipment

Emerson Climate Technologies announced results from a recent survey of contractors and distributors regarding R-22 equipment phase-out by 2010. While 100% of those surveyed are aware of the phase-out, the measures they are taking vary widely.

American Standard Companies changes name to Trane

Trane made its debut as the new name for the company previously known as American Standard Companies.

Controlling HVAC intelligently

The HVAC controls market exceeded $10 billion in 2006 and is forecasted to continue growing at a compounded annual growth rate of nearly 4% over the next five years, hitting $13 billion in 2011. One of the key factors contributing to the growth is the drive to upgrade and efficiently operate the aging facilities in the mature markets of North America and Europe.

Ask the experts: Tankless and storage water heaters

Ask the experts: Tankless and storage water heaters Are you considering tankless and storage water heaters? What are the pros and cons? What’s the return on investment? Here’s your chance to ask the experts questions to decipher the truth on tankless and storage water heaters.Click here to post your question for the experts to answer. Click here to read an M/E roundtable on tankless and storage water heaters.

Johnson Controls to help keep Pearl Island of Qatar cool

Johnson Controls, Milwaukee, agreed to a contract with Qatar Cool, district cooling authority for the Pearl Island of Qatar, to receive 46 water-cooled chiller units with an option to purchase six more. The 2,500-ton centrifugal chiller units will be shipped from San Antonio to Qatar and then installed in the world’s largest district cooling chiller plant.

ARI chairman’s goal: solve world’s energy issues

Speaking on Aug. 22 to an audience of air conditioning and refrigeration engineers attending the International Congress of Refrigeration in Beijing, Robert Wilkins, president of Danfoss, Inc. and 2007 chairman of the Air-Conditioning and Refrigeration Institute (ARI), issued a call to action for the air conditioning and commercial refrigeration industry.

ASHRAE publishes updated AC design manual

The second edition of Air-Conditioning Systems Design Manual is available from ASHRAE. The updated manual, which was first published in 1993, includes new materials concerning the design process, indoor air quality and green design. The manual aims to bridge the gap between engineering theory and practical application.

New Products for HVAC and Refrigeration

Refrigerant retrofit bulletin, energy management guidelines, glycol unit coolers and wireless gas detection.

Highlights from the Sixth Annual TABB Conference

Since its inception in 2002, the Testing, Adjusting and Balancing Bureau(TABB) annual conference has grown from a small meeting of a few dozen people, to an industry standard of over 100 people—the best and the brightest in the HVAC industry. The sixth annual TABB Conference, held May 17-19 in Hartford, Conn., highlighted a year of success and laid the ground work for the challenges ahead.

Hotel IAQ Getting Better, Says This Traveler

I'm writing this from my hotel room at the NFPA World Safety Conference and Expo in Boston. Through the rain-pelted window, I have a sweeping view of Boston Harbor and the city skyline. From the sky to the water, everything is expressed in shades of gray. Boats of various shapes and sizes are passing one way and then the other.

M/E Insider: Recent New Hires and Promotions – 2007-05-24

James Lee Witt Assocs. hire new personnel; S.A. Comunale and Arora Engineers open new offices.

Building Design Leaders Unite on Energy Reduction Targets

To reduce the building design industry’s impact on the environment, key leaders in that sector are collaborating to establish carbon-neutral buildings by the year 2030.

Forum – 2007-04-01

BE Conference 2007, sponsored by Bentley Systems, offers hundreds of sessions and hours of accredited learning, in Los Angeles from April 29 through May 3.www.be.org/BEConference LonMark Intl., a trade and interoperability association for the controls industry, has announced its LonMark Sessions 2007 Global Educational Seminar Program.

The First AHR Expo Product of the Year Awarded This Year

This year, for the first time, the Innovation Awards Competition at the AHR Expo, jointly sponsored by the International Exposition Company, Atlanta-based ASHRAE and the Air-Conditioning and Refrigeration Institute, Arlington, Va., presented an overall “AHR Expo Product of the Year.” This year’s award went to Emerson Climate Technologies for its Copeland Scroll Digital compressor. “Our company views this award as a huge win for our business,” said Craig Rainey, director of marketing at Emerson. Winning the award shows the industry our commitment to investing in technology to develop new and innovative products that improve human comfort and reduce energy consumption.d into nine different Award competition categories. The Copeland Scroll Digital™ compressor received the Innovation Award for the cooling category and then proceeded to earn the ultimate honor, the Product of the Year award. For more information on the AHR Expo Innovation Awards, click here .

LONMARK Launches Professional Certification Program at AHR Expo 2007

Lonmark International (LMI), San Jose, Calif., is evolving. “We’re moving out of certification and into educational and training functions,” said Ron Bernstein, executive director, at the organizations annual press conference in conjunction with the AHR Expo in Dallas last week. With 60 million devices worldwide, 300,000 installed systems, 500 LonMark members and 4,000 OEM developers, Bernstein explained, the LonWorks standard has established a solid presence over the years, and has moved onto the world stage. It is an EN standard in Europe, recently became a Chinese standard, and next year, is planning a worldwide seminar tour. LMI also announced at the AHR Expo that LonMark Americas (LMA), the North American affiliate of LMI, has launched the first LonMark Certified Professional test designed to establish core competency and proficiency standards for the LON community. The certification testing program is a natural extension of the multiple requests from the industry to establish a competent, qualified team of professionals worldwide with the same standards.

CSE Welcomes Michael Ivanovich as its New Editor

Michael Ivanovich is a 10-year veteran chief editor in the buildings industry focusing on HVAC, green buildings and controls. He is passionate about harmonizing the built environment with the natural environment, and believes that engineers are key to the success of this process through integrated design and post-construction O&M decisions.

Stephen Yurek Named ARI President

The Air-Conditioning and Refrigeration Institute (ARI), Arlington, Va., named Stephen R. Yurek president of the association. Yurek previously served as chief operating officer and general counsel for ARI. He replaces William G. “Woody” Sutton, who will resign at the end of the month. Yurek came to ARI from the education community, having served as vice president of business develop...

2007 AHR EXPO Set to Break Attendance Records

This year’s AHR EXPO, scheduled for Jan. 29 to Jan. 31 at the Dallas Convention Center, has grown significantly since it was last held in Dallas in 2000.

M/E Insider: Recent New Hires and Promotions – 2007-01-18

Walter T. Marlowe, P.E., CAE , has been appointed executive director and chief executive officer of Construction Specifications Institute (CSI), Alexandria, Va. Marlowe has 16 years of experience in the industry, and has served in staff leadership roles at the American Society of Civil Engineers and National Society of Professional Engineers, including as director of professional practice, international activities and technical activities; and as executive director of Building Security Council. BSA LifeStructures , Indianapolis, hired Tom Brolsma and Tyler Smith as marketing coordinators.

Architects Predict Significant Increases in Sustainable Design, Singling Out the Importance of HVAC

At last week’s Greenbuild Expo in Denver, Autodesk, Inc. announced the results of its 2006 Autodesk Green Index, which provides a measure of the adoption of sustainable design techniques by architects. The overall Green Index number, based on a score of zero to 100, is expected to double by 2011, from 30 in 2006. Of special significance for consulting M/E engineers is the fact that the most prevalent energy-saving initiative the architects pointed to are high-efficiency HVAC systems, with 64% percent of the study's respondents specifying their use on more than half of their projects over the past year.

ASHRAE Research Provides Comparison Data for Unitary Equipment

New research from the American Society of Heating, Refrigerating and Air-Conditioning Engineers may well lead to better understanding of humidity control and energy cost when comparing unitary equipment. ASHRAE Research Project-1254, Evaluating the Ability of Unitary Equipment to Maintain Adequate Space Humidity Levels, Phase II was funded in part by the Air-Conditioning and Refrigeration Technology Institute. “The results will help designers better understand the humidity control and energy cost impacts of the unitary equipment options compared in this project,” said lead researcher Michael J. Witte, Ph.D., GARD Analytics. “Many of these options are in limited use, so actual performance experience is not available for a broad range of building types or climates.

Survey Shows Most SEER 10 Inventory Has Been Liquidated

A recent survey to gauge the transition from SEER 10 to SEER 13 air-conditioning efficiency indicates that the inventories of SEER 10 units have mostly been used up. The survey, the fifth installment in a series of SEER 13 market surveys that St. Louis-based Emerson Climate Technologies has conducted in 2005 and 2006, questioned HVAC contractors and distributors across the industry about their awareness, planning, actions and concerns regarding the SEER 13 regulations. The purpose of the surveys is to help provide an accurate picture of the market’s transition, which is paramount to maintaining uninterrupted product delivery and high quality levels. The most recent survey shows that 77% of SEER 10 inventory has been used up and indicates a prediction that 97% of SEER 10 inventory will be used up by the end of 2006. “Some contractors communicated through the survey that they had stocked up on 10 SEER inventory in anticipation of the 13 SEER transition,” said Karl Zellmer, vice president of air conditioning sales, Emerson Climate Technologies.

Special HVAC Circumstances? Think Low-Intensity Radiant Heat

When one thinks about providing heat for a building, forced air is probably the first solution that comes to mind. But in certain circumstances, notably large, open settings or operations where doors are frequently opened and closed, gas-fired infrared heating may provide a more efficient system. Studies have found that gas-fired infrared heating can save 20% to 50% in fuel consumption over for...

Johnson Controls Launches Energy Efficiency and Sustainability Blog

Bloggers writing about various energy efficiency and sustainability topics have teamed up to launch www.yourenergyforum.com . As energy prices continue to rise and individuals and corporations take a more active role in decreasing energy use and practicing sustainability, the forum will provide insight from experts on these vital issues. The blog covers virtually any facility-related energy issue applicable to residential, commercial and industrial users. The blog will also provide practical steps for lowering and managing energy use.

Sustainable Venture

ASHRAE and APPA, the association serving educational facilities professionals, have signed an agreement to provide mutual support in promoting sustainable higher education facilities. “This agreement brings together the providers of equipment and technology and the owners and operators of that equipment and technology with a focus on improvement and environmental responsibility,” said Jack Colby, immediate past-president of APPA. The memorandum of understanding announces both organization's intent to share resources to jointly promote educational programs, encourage continuing professional development and create new products—something ASHRAE president Terry Townsend, called “crucial” for furthering new advancements in HVAC technology. “This collaboration will enhance the efficiency of our facilities and improve our operations so that we may continue to provide a comfortable and welcoming experience for those people who work, study and play in the environments we maintain,” added Colby.

What’s Good for the Goose … er, Panda…

Tai Shan, the nation's resident baby panda, just turned one. "Peaceful Mountain" in Chinese, the panda has come a long way from the hairless four-ounce creature that many dubbed "butterstick." I had the good fortune to see the youngster on a recent trip to D.C., where I learned that his successful transition to "rambunctious toddler" is partly attributable to technology developed for commercial...

Fifth Annual Testing, Adjusting and Balancing Conference a Success

For three days in May, San Jose, Calif. hosted some of the best minds in HVAC testing, adjusting and balancing to discuss the latest trends and get certified in building. The fifth annual TABB Conference opened with news of TABB globalization. Erik Emblem, TABB administrator, announced that he had recently traveled to Seoul, South Korea to visit a contractor who submitted an application to become a TABB Contractor.

Water Conservation Focus of ASHRAE Forum

With water usage costs rapidly rivaling energy costs in the building industry, water conservation should become a factor in discussions on sustainability. A forum, “How Can ASHRAE Address Water Conservation in Sustainable Design,” will be held as part of ASHRAE’s 2006 Annual Meeting, June 24-28, Quebec City. The forum will take place from 9:30-10:30 a.m. June 28.

Promoting Diversity—in VAV System

Editor's note: Your eyes are not deceiving you. In an effort to present more engineering fundamentals, we'll periodically run "CSE Classics." This story originally ran in Sept. 2000. Variable-air-volume (VAV) supply-air systems are usually designed so that the total air-handling unit (AHU) capacity (QAHU) is less than their total terminal-unit air volumes (ÓQTU).

Letters: Reader Feedback – 2006-06-01

Curbing contaminant carryover I was interested in and enjoyed your article "A New Lab Formula" (CSE 3/06, p. 24). I am curious about the heat wheel technology you refer to. How do you get around the cross-contamination between airstreams? GREG HOLMES, P.E., R.P.A. OPERATIONS MANAGER, JONES LANG LASALLE CORPORATE, PROPERTY SERVICES Michael J.

How to Entice Architects into Using Photovoltaics

The Sustainable Buildings Industry Council (SBIC) has released Version 1.8 of the award-winning Energy-10 software. For the first time, building designers will have an easy-to-use tool to help them integrate photovoltaics and solar domestic hot water in an energy-efficient building. These solar features were added to Energy-10 Version 1.8 at the urging of the solar industry.Version 1.8 offers many new features including: Photovoltaic module that provides the ability to model and simulate the performance of a PV system that is either stand-alone or integrated with the building. Solar Domestic Hot Water module provides a new solar domestic/service hot water modeling capability. A new library ("ASHRAELIB") is included defining constructions (wall, roof, window, etc.) as spelled out in ASHRAE 90.1-2004. Thousands of building designers and many more thousands of students currently use Energy-10 to make informed decisions about the energy performance of the smaller commercial buildings and homes they are designing, according to SBIC officials.

ARI Offers a Directory of Certified Product Performance for the HVAC/R Industry

The Air-Conditioning and Refrigeration Institute (ARI) offers an online tool to access important certified product performance information about air-conditioning and refrigeration equipment. The ARI Directory of Certified Product Performance (ARI Directory) allows consumers, contractors, distributors, engineers, architects and specifiers to quickly access the information they need to, for example, properly match outdoor condensing units and indoor coils, enabling the system to achieve the advertised levels of efficiency. The directory will also allow a user to print out a certificate stating that the installed system is properly matched, thereby protecting the consumer's warranty and enabling them to qualify for utility rebates that are offered in some areas. In addition to unitary equipment, the directory also includes certified performance information for products covered under ARI's 22 other certification programs. "This directory provides end users with the tools they need to ensure they get what they pay for," said ARI President William G. Sutton. "With this tool, customers can be assured that their ARI-certified products are properly matched, energy-efficient systems.

NASA-Funded Outreach Program Helps HVAC Installer with a Dilemma

Thanks to assistance from the NASA-funded Space Alliance Technology Outreach Program (SATOP), a Fort Worth, Texas HVAC installer has created a safe and efficient means to solve the normally tedious and difficult task of setting copper refrigerant lines when installing AC systems. Vess Polk, president of A-Redemption, a product development company, has devised a line guide that would enable one person, instead of the usual two, to install the copper refrigerant line while at the same time reducing the potential for damage to the lines. SATOP, administered through the Bay Area Houston Economic Partnership, provides free engineering assistance to small businesses with technical challenges through the expertise of the program's 50 alliance partners, made up of aerospace companies, universities and NASA field centers involved in the U.S. Space Program. "I discovered in my 21 years of installing air conditioning systems that it was impossible to position the lines by yourself in tightly constrained attic space.Plus, nails and other impediments would frequently damage the lines," explained Polk. Polk's initial idea of a line guide sounded feasible, although early prototypes created friction. "I had resistance when pulling the line set through my invention; obviously, this had to be resolved in order for the guide to work," he said. Fortunately, Polk learned about SATOP through the Fort Worth Chamber of Commerce's Small Business Services Department.After Polk filled out a Request for Technical Assistance (RTA) with SATOP he was matched with John Dillon, a mechanical engineer with Alliance Partner AJT & Associates in Cape Canaveral, Fla. "Vess Polk's design had a tendency to compress the insulation against the line, which could affect the insulation integrity and also bend or kink the pipe, thereby impeding the delivery of the coolant," said Dillon."I began working on a design that would reduce drag in the line guide with any size of piping and insulation." Dillon suggested a two-piece opening in the metal guide that would allow the user to adjust the opening to whatever width is needed and still keep the wall stud structurally firm.

Use of Sensors in HVAC Definitely on the Rise

Opportunities for sensors in HVAC applications in North America are on the rise, driven primarily by the rapid growth of non-residential construction and increasing concerns about indoor air quality. New analysis from Frost & Sullivan , “North American Sensor Opportunities in HVAC Applications,” reveals that the total sensor market for HVAC applications generated revenue of $302.2 million in 2004 and is expected to reach $692.8 million in 2011. Researchers suggest the statistics suggest a continuation of the trend toward sophisticated building automation, with engineers and facility managers looking to manage and optimize the control systems using feedback from sensors. Conventional mechanical systems are increasingly being replaced by electronic controls that require intelligent sensors for better accuracy and system performance. “The impact of the new commercial construction growth rates on the overall building automation market revenue is expected to drive the sensor market,” notes Frost & Sullivan Industry Research Analyst Dr. Rajender Thusu.

Microchannel Coils Have Now Been Adapted to HVAC Applications

Carrier Corporation, a unit of United Technologies Corp., has announced the achievement of world class efficiencies of 10.9 EER full-load and 15.4 part-load on air-cooled chillers with non-ozone depleting HFC-134a refrigerant by utilizing microchannel coil technology. “Microchannel coil technology is widely used in the automotive industry to increase heat transfer efficiency while providing enhanced reliability through improved corrosion resistance,” said David Sabatino, product manager, Carrier air-cooled chillers. “Now, microchannel coils come standard with an industry exclusive three-year coil warranty on all of our Aquaforce models ranging from 80 to 500 tons.” Carrier claims that in addition to the chiller’s efficiency and improved corrosion resistance using the new microchannel coil technology, the chiller is now even more environmentally sound. Sabitino explains that the adaption of microchannel coil technology to the commercial HVAC industry was only possible after a boost in efficiency and standardization of the technology.

Duct Leakage: If You Can Measure It, You Can Cut It

To address the problem of duct leakage in large commercial buildings, researchers have now developed effective ways to measure leakage and have defined a metric that can be used to compare the relative performance of various types of thermal distribution systems. Click here . (PDF).

Security: Berkeley and Sandia Labs Develop Airport Protection Guidelines

A report developed by a joint team of researchers from the U.S. Dept. of Energy’s Lawrence Berkeley and Sandia National Laboratories is being distributed to airport executives and emergency planners and will help security managers of airports and other transportation facilities reduce the risk of chemical and biological attacks. “Guidelines to Improve Airport Preparedness Against Chemical and Biological Terrorism” is a 100-page document that makes concrete recommendations on improving security and assessing vulnerable areas and helps its readers understand the nature of chemical and biological attacks. The project was an extension of PROACT (Protective and Responsive Options for Airport Counter-Terrorism), a five-year, Sandia-led program most recently supported by the Dept.

Building Automation for Boston

A major provider of building automation, security systems and energy solutions has installed a $2.1 million building automation system (BAS) in the recently completed Boston Convention and Exhibition Center. Containing 1.7 million sq. ft., the new convention center is the largest meeting facility in New England and has the capacity and services to host tens of thousands of people under one roof. To effectively manage all the systems in place at this massive building, the owners, the Massachusetts Convention Center Authority (MCCA) needed a versatile and reliable BAS. MCCA asked the supplier to deliver an integrated BAS solution that would allow multiple third-party systems to interoperate and be controlled through a single front-end system.

Innovations at Upcoming AHR Expo

A record number of entries were submitted for the fourth annual AHR Expo Innovation Awards competition sponsored by ASHRAE, ARI and International Exposition Company. The nine winning companies will be recognized at a special ceremony in Jan. at the 2006 AHR Expo in Chicago.

Wal-Mart Goes Green with Two Sustainable Stores

Simultaneously in Atlanta and Denver, proponents of taking sustainability to a mass level hyped events at two stores run by retail giant Wal-Mart. In the Denver suburb of Aurora, the chain launched its second experimental store Nov. 8. The store was designed by Arup and built by Turner Construction, and both companies prominently displayed and discussed the project and its predecessor in McKinney, Texas, at their booths at Greenbuild. CSE filmed a roundtable discussion with several key members of the project at the McKinney store's debut earlier this year.

HVAC and the Environment

From the heart of the rain forest, environmental experts recently addressed the state of global warming, HVAC, sustainable design and the status of global environmental regulations. James Wolf, vice president and chairman of Environmental Policy Council for HVAC manufacturer Trane, was one of a number of speakers who addressed international attendees from the HVAC world at the FEBRAVA 2005 Trade Show in Sao Paulo, Brazil this past month. Wolf, who is actively involved as a business advisor at the Montreal Protocol and Kyoto Protocol meetings, shared his perspective on the role that HVAC technologies play in meeting environmental priorities. Energy-efficient HVAC technologies, he said, can be at the forefront in reducing emissions and minimizing the threat to the global climate.

Office of the Future Starts with Smart Carpeting

In these pages CSE often reports on new technologies debuted at trade shows, including the latest on building automation and controls. It's not surprising that in this office-themed issue, we'd report on the DEMOFall conference, a show dedicated to emerging technologies. But readers may raise an eyebrow at the subject of this report: carpeting.

New Products for HVAC Applications 7/05

Copper tube fitting system for water and natural gas applications is said to save time by quickly and easily identifying unpressed connections. The patented indentation on the inside surface of the fitting ensures leakage of liquids and/or gases from the inside of the fitting past the sealing element of an unpressed fitting. The indentation is sealed during the pressing process, resulting in a leak-free permanent connection.

Protecting Ductwork and Cold Water Piping From Mold

There are more than 100,000 known species of mold.Mold spores (seeds) are everywhere, indoors and outdoors, in our building materials, on our clothes, and in the air we breathe.We can’t avoid them, but we can minimize their potential for growth in our buildings.And we should .Mold is a common allergen; it exacerbates asthma, and can cause infectious disease in some people.It can also have far reaching legal consequences for owners and others in the construction industry. The Nature of Mold Mold requires 3 things to grow:(1) food (2) temperatures between 40 to 100 This involves much more than wiping up the occasional leak.It requires vigilant control of moisture entry into the building and prevention of condensation throughout our ductwork and cold water piping. Moisture Happens Mold doesn’t require standing water to grow.High humidity is moisture enough for mold spores to germinate.Ideally, buildings should maintain relative humidity of 60% or lower—not only for comfort, but to prevent mold growth.Unfortunately, areas of high humidity are bound to occur in some areas of an HVAC system. High relative humidity levels in air handling units occur any time outdoor air dew points are above the coiling coil discharge temperature (typically 61°F)Air discharged from the cooling coils under these conditions usually has a relative humidity level of 90% or higher.Provided food is present, this is all it takes for mold to grow. Condensation is another problem, occurring whenever air comes in contact with surfaces that are cooler than the dew point of the surrounding air.This makes cold water piping and cold ductwork prime areas for unwanted moisture.This moisture can condense into liquid at the wrong place and the wrong time, wetting building components such as ceiling tiles, drywall and carpeting, and setting the stage for mold growth. Insulation:The Key to Preventing Unwanted Moisture Insulation is the best way to avoid condensation in ductwork and piping systems.However, if improperly installed or damaged, some types of insulation can provide a cozy breeding ground for mold. Closed-cell, elastomeric foam is the first and only type of insulation to provide thermal efficiency along with the necessary prevention of condensation and water vapor transmission on cold water and air handling systems. There have been numerous studies that support the case for closed-cell, elastomeric foam over fiber glass and cellulous-based products when it comes to mold prevention.The reason for this is twofold. Fiberglass structure provides a wicking opportunity for moisture; therefore moisture can quickly travel, expanding the area for potential mold growth. Fiberglass tends to trap and collect dirt.In fact, the air pockets that make fibrous type materials an effective insulator also makes them prone to trap and retain dirt. According to the April 2004 ASHRAE Journal, “Porous materials such as internal fibrous glass liner have been identified as a major source of fungal contamination.” The same article references a study in which fungal growth on fiberglass linings was found in 92% of 150 office buildings in Minnesota with IAQ problems. This particular study found that the average microbial levels in fibrous glass insulation are hundreds — and in some cases thousands — of times higher than the microbial levels found on closed cell foam insulation under the very same environmental conditions.1 Based on these facts, many experts recommend replacing fibrous glass liners with materials that are less likely to encourage fungal growth (i.e. closed-cell foam insulation) in areas where humidity is likely to exceed 70%. An increasing number of schools, universities and other facilities seeking better IAQ have made the same decision, replacing existing insulation with elastomeric foam, not only for its mold-resistant properties, but its fiber-free, dust-free, and non-particulating construction. Why Closed Cell Foam Is the Better Choice for Mold Prevention Unlike fiber-based products, which have been found to hold moisture for up to 16 days2, closed-cell elastomeric foam won’t absorb moisture.Its smooth surface also inhibits the accumulation of dirt which serves as a food source for mold. Properly installed and maintained, elastomeric foam is an extremely effective deterrent to biological contamination.Even if closed-cell foam duct liner gets dirty or wet, its smooth surface makes it extremely easy to clean.The same cannot be said of fiber-based duct liners, which are notoriously difficult to clean, and deteriorate more quickly under adverse conditions.While many fiberglass duct liners are now encapsulated with a protective jacket that acts as a vapor retarder, this outer covering is easily punctured.Closed-cell elastomeric foam requires no such vapor retarder or protection. Finally, when fiberglass insulation gets wet, the North American Insulation Manufacturers Association (NAIMA) recommends that it be removed and thrown out as soon as possible to prevent mold and fungi growth. 10 Steps to Prevent Moisture in Piping and Ductwork Moisture needn’t be a problem in a well-designed and maintained HVAC system.The following preventative measures will help facilities eliminate moisture problems and minimize the risk of mold growth. Fully insulate all cold water pipes and fittings and condensate drain pipes with closed-cell elastomeric foam material. Avoid gaps or unsealed seams, and be sure to insulate all fittings, valve stems, etc. Whenever possible, use insulation materials that have non-moisture-absorbing properties—especially on chilled water and refrigeration piping where condensation can become a problem. Fully insulate cold-air supply ducts and air handling equipment. Specify and install adequate insulation thickness to control condensation.Condensation control typically requires greater insulation thickness than thermal efficiency. Carefully monitor indoor relative humidity, keeping RH at 60% or below. Design systems with adequate drainage in mind.This means installing equipment at appropriate pitch for proper drainage, as well as providing for easy access to drain pans so that workers will be more inclined to check for drainage more often. Change filters regularly and inspect for any accumulation of moisture or mold. Clean and inspect air handlers annually and clean ducts every 5 to 10 years.In certain climates and environments, cleaning may be required more often. Seal cooling ducts during the heating season to prevent moisture from accumulating.Dampers are not airtight and therefore should be sealed by taping plastic sheeting over them. Keep It Clean.Keep It Dry.Keep It REAL. We have a lot to learn about mold and its impact on our indoor environments.While we may not fully understand the degree of hazard mold presents, we do know this:Mold has become a serious concern for building occupants.Mold-related litigation and workers compensation claims are on the increase.These are realities that every building owner, engineer, and contractor must face. Proper insulation practices are the owners’ best defense against mold infestation in chilled water, refrigeration, and HVAC systems.Materials that are non-absorbent, fiber-free, and easy-to-clean are the best choice for avoiding mold and its far-reaching consequences.Closed-cell, elastomeric foam provides these properties for longer lasting systems and greater owner peace of mind. 1) MICROBIAL LEVELS ON INTERIOR SURFACES OF VENTILATION DUCTWORK, CLOSED CELL FOAM VS.

Survey Finding: Most Contractors Convert to 13 Seer by Jan 2006

Emerson Climate Technologies, St. Louis, announced that its second quarterly 13 SEER survey shows that while a majority of HVAC contractors (77%) plan to convert to 13 SEER by January 2006, 12% of those surveyed still plan to aggressively sell 10 SEER after the transition deadline. The survey, the second in a series of 13 SEER market surveys that Emerson is conducting over the course of the year, asked HVAC contractors and distributors across the industry questions to gauge their awareness, planning and actions to prepare for the 13 SEER regulation, which goes into effect January 23, 2006. The purpose of the survey is to help provide an accurate picture of the market’s transition, which is paramount to maintaining uninterrupted product delivery and high quality levels as OEMs release their new 13 SEER models to the industry. The survey also shows that, of those contractors taking steps to prepare for the transition, 33% are actually beginning to develop a strategic marketing plan. Emerson plans to conduct the third survey in the series in late summer.

Pushing BAS to Realize Its Full Potential

Building automation systems (BAS) are an effective tool for facility managers and operations personnel to resolve problems quickly, reduce energy consumption, improve system performance, increase occupant comfort and safety and manage maintenance costs. Developments in system architecture allow previously independent systems such as lighting, HVAC and fire and life safety to be seamlessly integ...

SBIC Signs Agreement to Distribute Energy-Modeling Software

The Sustainable Buildings Industry Council (SBIC) signed an exclusive worldwide agreement with the Midwest Research Institute (MRI)—the management and operating contractor for the U.S. Dept. of Energy’s National Renewable Energy Laboratory (NREL)—to distribute Energy-10, Ver.

R & R Revs up Mechanical System at Daytona International

Mechanical contractor R & R Industries gave the word “speed” a whole new meaning during the multi-million dollar infield buildings renovation at Daytona International Speedway (DIS)—home of the renowned Daytona 500 NASCAR race. With less than six months between last summer’s Pepsi 400 race and December’s KartWeek race deadline, most building trades hurried on a project that would ordinarily take a year to complete. Dozens of existing 45-year-old infield buildings were demolished and replaced with over 200,000 sq. ft.

Penn State Researches IAQ in Government Buildings

Research to improve indoor air quality in government buildings, among other projects has recently been funded by ASHRAE. Twelve students have been approved to receive a total of $100,000 through ASHRAE’s grants-in-aid program, which is designed to encourage students to continue their education in preparation for service in the HVAC industry. The recipients were chosen by the Society’s Research Administration Committee at the 2005 Winter Meeting held Feb. 5-9. The grants are awarded to fulltime graduate students of ASHRAE-related technologies.

Berkeley Lab Developing Building-Efficiency Curriculum

A group including U.S. Department of Energy (DOE) scientists and educators from a California community-college district are working together to develop a new curriculum for students training to be heating, ventilation, air-conditioning and refrigeration technicians. The program, which incorporates a sophisticated building-operations simulation tool, is intended to boost graduates' knowledge of ...

Berkeley Lab To Develop Energy-Efficient Building Operation Curriculum for Community Colleges

Scientists at the U.S. Dept. of Energy's Lawrence Berkeley National Laboratory are teaming with educators at the Peralta Community College District in Oakland, Calif.

Lighting Case Studies Cont.

Entertainment Technology Flies High at Air Zoo Sylvania Lights Up Baltimore's Westside Moscone Center Employs World’s Largest Lighting Control System Entertainment Technology Flies High at Air Zoo HVAC Firm Sees Lighting Costs Drop by More than Half T5 Fluorescent Technology Flies High For Defense Lighting Provider Hits Home Run for Shea Stadium A Look at Electrolume (PDF) Smart Lighting Control on a Massive Scale (PDF) New Warehouse Lighting System Runs Stronger and Cooler The Art and Psychology of Lighting (PDF).

Green Australian-Style: Sewer Mining

Australia is sometimes referred to as the "land of sunshine and sharks," and is well known for Foster's beer and its even more violent version of football, but it may soon gain renown for a new export: sewer mining. Ché Wall, group director of Lincolne Scott, an Australian consulting engineering firm, was one of a number of designers on an international panel at Greenbuild.

Carrier Hits the Strip

HVAC equipment manufacturer Carrier, last month, held a customer event in a town well known for requiring year-round air conditioning: Las Vegas. The affair, which took place at Caesars Palace, featured breakout sessions on various HVAC topics, and also served as a tradeshow of sorts, where Bruce Burdon, director of product management and marketing for the company's North America Commercial Div...

GreenGuide Available

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has responded to the growth of the green movement by publishing the ASHRAE GreenGuide. The new reference manual for HVAC and refrigeration designers provides guidance on green design from the design and construction phases to operation and maintenance.

Packaged Systems Produce

The packaged HVAC system has been around since mechanical engineers started offering forced air heating and cooling to offices, merchants, industries and residences. In many design situations, engineers have become very dependent upon HVAC manufacturers to provide them with a range of complete packaged HVAC systems to fit various applications.

No Balance in Boilerplating HVAC Systems Testing

Logically, an HVAC system would be the core around which a building is constructed. In reality, the M/E engineer has to fit the system into the space he's given, with chillers, heaters, diffusers and ductwork limited to standard measurements. And since no system can be perfectly designed or installed for a given environment, testing, adjusting and balancing (TAB) are required to ensure that sys...

Briefly … – 2003-05-01

The Missouri state legislature is considering a bill that would grant professional engineers who are members of the Missouri Society of Professional Engineers (MSPE) special license plates advertising their P.E. status. After 33 years of heading engineering firm Flack + Kurtz, New York, CSE advisor Norman D.

Mold Hurts Pocketbooks, if Not Health

Protecting buildings against mold continues to be a major focus for engineers, but protecting oneself against mold-related lawsuits may prove the greater concern. With approximately 10,000 mold-related cases pending in the United States, intrusive building mold has certainly grabbed headlines. The majority of these cases getting such media attention are in Florida, Texas and California.

Ruskin Acquires Part of Johnson Controls’ HVAC Damper Business

Parts of Johnson Controls’ HVAC damper products will now be manufactured and, in some cases, marketed by the Ruskin Co., Kansas City, Mo.

HVAC Market To See Strong Worldwide Growth

Continued growth in developing nations will help the worldwide market for new heating, ventilating and air-conditioning (HVAC) equipment grow by almost 5% per year through 2006—reaching $110 billion—according to a new report released by the Freedonia Group, a Cleveland-based market research firm.

Daylighting Linked to Student Performance

Although the common-sense premise has long been that exposure to daylight is related to successful student performance in the classroom, few scientific studies scientifically prove this. Consequently, in an effort to promote daylighting and energy efficiency, the California Energy Commission—on behalf of the New Buildings Institute—recently commissioned a study of daylighting and human performance conducted by the Fair Oaks, Calif.-based consulting firm, Heschong Mahone Group.

ASHRAE Pubs Address Fuel Cells, Managing Smoke

Among the American Society of Heating, Refrigerating and Air-Conditioning Engineers' latest offerings are publications on principles in smoke management and fuel cells for building applications.

BLIS the Buzz at AEC Show

BLIS—Building Lifecycle Interoperable Software—was on the lips of numerous exhibitors at the recent AEC Systems Show in Anaheim, Calif. Like the evolution of BACnet—the open communications protocal for building controls—those in the computer design software and electronic tools world have long needed an interoperable protocol of its own.

Best of the Web – Editor’s Pix – 2002-03-01

Valuable Internet resources for engineers.Discover Engineeringhttp://www.discoverengineering.org/eweek/index.htmlA brainchild of National Engineering Week, this creative, kid-focused site presents games, factoids, experiments and biographies of famous engineers and their inventions, among other features, with the goal of sparking interest in engineering.

Best of the Web – Editor’s Pix – 2001-11-01

Valuable Internet resources for engineers. HVACindustry.comwww.hvacindustry.comAn information-rich portal providing HVAC product updates,industry news and forums and a job board. Site also features valuable content from the pages of Consulting-Specifying Engineer.Renewable Energy Policy Projectwww.

CFC Replacements Near Halfway Mark

According to a recent survey conducted by the Air Conditioning and Refrigeration Institute (ARI), Arlington, Va., U.S. building owners are expected to just about reach the halfway point in the replacement of comfort-cooling chillers that use chlorofluorocarbons (CFCs).

New Contractor Organization Formed

A new heating, ventilation and air-conditioning (HVAC) contractor organization—International Service Leadership Inc. (ISL)—has been formed to provide support services to contractors.

EPA Expands Refrigerant Alternatives List

As part of its Significant New Alternatives Policy program, the United States Environmental Protection Agency is in the process of expanding the list of acceptable alternatives for ozone-depleting refrigerants and fluids.

ARI Adds Certification Program

After five years of development, the Air-Conditioning and Refrigeration Institute (ARI), Arlington, Va., has launched a new Air-to-Air Energy Recovery Ventilation Equipment Certification program, downloadable at www.ari.org.

K-factor dangers…

Core heating Mechanical stresses System harmonics .and causes of arcing faults: Insulation failure Equipment mishandling Poor maintenance

Fabric HVAC Retrofit Improves Workplace

Until recently, many manufacturing plants considered indoor-air quality (IAQ) an unnecessary expense. But with today's labor shortages and escalating turnover of increasingly selective employees who seek better working conditions, manufacturers are looking to IAQ improvement as a method of keeping employees and attracting new ones.

District Consolidates its Controls

Minnesota's Robbinsdale Area School District, located just outside of the Twin Cities, has a tradition of academic excellence. For its schools and administrative buildings to be as progressive as its students and personnel, the district decided to automate its building-control systems over a six-year period to save money on energy and operating costs in conjunction with building renovations.

Updated Air-Conditioning and Fiber-Optics Handbooks Available

New editions of Fundamentals of Air-Conditioning Systems, Testing and Balancing HVAC Air and Water Systems and Fiber Optic Lighting: A Guide for Specifiers are now available from AEE (Association of Energy Engineers) Energy Books.

HVAC – 2001-01-26

School Calls for Chiller Upgrade

The children's center at Washington Elementary School in Sacramento, Calif., is open year-round, and with a number of classrooms lacking windows, there is a constant demand for cooling. High charges for peak usage, coupled with the inefficiency of old chillers, called for a chiller replacement.The school had been using a pair of air-cooled reciprocating compressor chillers that were 20 years old.

Systems Integration, 2001

In high-technology facilities, building-systems integration is a mixed bag, say engineers, in part because-as always-it depends upon the whims of the client. "The degree of integration of multiple building systems often depends on the owner's organization," says Calvin L. Witt, P.E., of Hayes Seay Mattern & Mattern.

H2O Homework: Treating Water for Boilers

The liquid support systems that keep boilers boiling are the keys to boosting efficiency and maintainability. To effectively specify and commission these subsystems, leading engineers consider the effect of common problems like carryover, corrosion and other water concerns due to impurities and deposits-such as oxygen, silica and iron-found in hard water.

Commercial water heaters

Commercial water heaters and boilers are now available in three new sizes-1.5 million, 1.7 million and 2 million Btu-with digital temperature control, expanded firing ranges from 50 to 100 percent and flexible venting up to 50 feet through a two-pipe system. Units also feature 87-percent thermal efficiency rating and thermostat accuracy within one degree.

Rotary-based duct liner

Rotary-based duct liner features a tougher, smoother and more damage-resistant air-stream surface for longer life and greater efficiency. Liner is made of a flexible blanket composed of rotary-glass fibers bonded together with a thermosetting resin. A black composite, nonwoven mat and acrylic coating are bonded to the air-stream surface to give the product strength.

Quick-delivery catalog

Quick-delivery catalog helps users identify which of the manufacturer's commercial and industrial centrifugal fans and accessories are available in stock or in quick-build cycles. Delivery time is down to 10 days for HVAC-duty and industrial-duty centrifugal fans in all models up to 54 inches, as well as for industrial process fans in all models up to 19 inches.

Rectangular ported plug valve

Rectangular ported plug valve line now includes sizes of 0.5 inches through 2 inches. Each valve is equipped with a hand lever, dial indicator, open-memory stop and ports for HVAC balancing applications. Grit seals in the upper and lower bearing journals protect both the packing and stainless-steel radial bearings. All port areas are standard. (Val-Matic Valve) Circle 16

Best of the Web – Editor’s Pix – 1970-01-01

Valuable Internet resources for engineers.EPA Upgrade Analysis Softwarehttp://yosemite1.epa.gov/estar/business.nsf/content/multiarea_tools_softwaretools_main.htmA variety of analysis tools assess the feasibility of variable-air-volume, chiller and lighting upgrades.Library of Continuing Education Courseswww.