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Sustainable condenser water system strategies
The condenser water system has a big impact on efficiency, long-term maintainability and total cost of ownership for the chilled and condenser water system
Back to basics: Boilers and hot water systems
Learn about hot water systems, boilers and their applications in commercial buildings
First steps for improving air cooled and water cooled chiller performance and energy efficiency
Explore the major factors that impact the efficiency of air-cooled and water-cooled chillers with the Energy Management Association's (EMA) certified member ETC Group, and learn several strategies to maximize the energy efficiency of chiller performance along the way.
Getting boiler design right
Understand factors to help decide which types of boilers are available and what is appropriate to heat a building
Design parameters for boilers and hot water heating systems
Understand the design and application of condensing boilers and heating water systems
First steps for improving air-cooled and water-cooled chiller performance and energy efficiency
The Energy Management Association explores the factors that impact the efficiency of air-cooled and water-cooled chillers.
Understanding chilled water plant performance
Chilled water plant optimization strategies can be deployed through traditional programmed sequence of operations
Specifying air- or water-cooled chilled water plants
Choosing between air- and water-cooled chilled water plants that best suit facility purpose and client needs requires expertise.
The evolution of medical gas systems design
Medical gas systems design has changed, and is outlined in NFPA 99: Health Care Facilities Code
Chiller energy optimization systems versus building automation systems
Learn the nuances of a chiller energy optimization system operates contrasted with a building automation system
Consulting-Specifying Engineer June 2021 issue
Read the June 2021 issue to learn about the innovators in industrial manufacturing, chiller energy optimization versus building automation, how pandemics affect building design and more.
Series counterflow chiller arrangement benefits
Configuring water-cooled chiller plants in a series counterflow (SCF) arrangement splits the lift between two machines to enhance the operating efficiency of the plant.
Basics of hot water heating boilers
Hot water heating boilers are used widely in residential, commercial and institutional buildings
Strategies to improve chiller plant performance, efficiency
Learn how to design chilled water systems that meet the thermal comfort demands and achieve operational and energy efficiencies
Air- versus water-cooled chilled water plants
A water-cooled chiller plant can be more efficient over the life span of the system and will be less costly than an air-cooled chiller plant
Video: A Pragmatic Approach to Getting the Most out of Chilled Water Systems
The presentation covers how to identify opportunities in central plant optimization and the steps to address inefficiency.
Chiller plant cooling
How to reduce the heat load inside a chiller plant
Top 5 Consulting-Specifying Engineer articles: October 18-24
Read the best articles from the past week. Design considerations for pipe systems and materials, introduction to boilers, 2019 Commissioning Giants, evaluating power quality for mission critical facilities and using demand-controlled ventilation in HVAC.
Top 5 Consulting-Specifying Engineer articles: October 11-17
Read the best articles from the past week. Determining which boiler system to design, IPD and VDC can lead to project success, 2019 Product of the Year winners, unified mass notification systems and the 2019 Commissioning Giants.
Introduction to boilers for the entry-level engineer
Entry-level consulting engineers should understand the definition and applications of a commercial hydronic boiler
Determining which boiler system to design
There are many different configurations of boilers; learn about the three primary types used for environmental and process systems
Specifying chillers for a variable-primary plant conversion
A hospital central utility plant was converted from primary-secondary to variable-primary pumping. The expansion and renovation project considerations were made to specify a chiller for such applications.
Chiller selection: Much more than capacity
Selecting and specifying the right chiller is generally dictated by capacity. There are many ways to specify chillers and chilled-water systems, depending on the application.
Specifying high-temperature hot-water boilers and systems
Mechanical engineers must understand and meet various national and local codes when specifying high-temperature hot-water boilers and associated systems.
Case study: School boiler replacement
A Nebraska school district embraced outside-the-box HVAC design to connect existing facilities and new construction into an efficient engineering solution.
How engineers can create better glass curtain wall design
When consulted early, a qualified MEP engineer can help a design team make better informed and more insightful decisions about glazing, thickness, height, and other factors in glass curtain wall design.
Exploring high-efficiency commercial air conditioners with MCHE evaporators
Microchannel heat exchanger (MCHE) evaporators prove to be more efficient and cost-effective than traditional fin-and-tube evaporators.
Your questions answered: Speech Privacy for Engineers, Architects, and other Construction Professionals
The September 12, 2018 “Speech Privacy for Engineers, Architects, and other Construction Professionals” webcast presenter addressed questions not covered during the live event.
Case study: Small-office HVAC calculations
Major renovation of an office building required compliance with ASHRAE 62.1
Designing sports arenas, theaters, and other specialty structures: HVAC
Specialty facilities like sports stadiums and theaters have to do more than host the entertainment these days—they’re full of technological bells and whistles and high client expectations when it comes to HVAC systems.
How to optimize an HVAC system
True optimization comes from a three-pronged methodology that starts with system design and controls the HVAC plant as a holistic system.
Advanced Engineering Consultants: OSU Kunz-Brundige Franklin County Extension Building
Automation, controls; electrical, power; energy, sustainability; fire, life safety; HVAC, mechanical; plumbing, piping; technology/communications; educational facility; laboratory; and new construction
P2S Inc.: Aquarium of the Pacific, Pacific Visions Expansion
Automation, controls; electrical, power; energy, sustainability; HVAC, mechanical; lighting; plumbing, piping; aquarium; and building addition
Ask an Engineering Expert: How do you best integrate lighting systems with other systems in health care facilities?
Timothy Larson answers the question: What are the best practices – and potential challenges – for integrating lighting systems with other systems, such as HVAC, in health care facilities?
Tackling data center energy use
ASHRAE Standard 90.4: Energy Standard for Data Centers guides engineers in designing mechanical and electrical systems in data centers.
Examining government, state, municipal, federal, and military facilities: HVAC
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 in regards to HVAC.
Energy-performance goals direct HVAC projects
Building owners are enforcing various standards on projects regarding energy codes and their effect on heating and cooling system selection.
Case study: Office building meets energy requirements
An office building client in the Midwest had very strict energy standards. This demonstrates how the design team managed the process.
NFPA 92 guides smoke control system design
NFPA 92 is the starting point for any smoke control system, but too frequently it is assumed to be the only standard by which to judge smoke control calculations.
Case study: Atrium requires smoke curtains
A 4-story atrium required some creative smoke control options.
Top 5 Consulting-Specifying Engineer Articles, April 30-May 6
Lighting controls, VRF challenges, BIM integration, HVAC and lighting integration, and the 2017 HVAC and Building Automation Systems Study were Consulting-Specifying Engineer's five most clicked articles from last week, March April 23-29. Were you out last week? You can catch up here.
Designing efficient data centers: Sustainable buildings, energy efficiency
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 sustainable buildings and energy efficiency.
Lighting complements a demand-response HVAC system
Here are several reasons that lighting can be a good complement to a demand-response HVAC strategy.
Designing efficient data centers: HVAC
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 HVAC.
BIM coordination and integration
When coordinating design, construction, and commissioning services across multiple disciplines, leveraging building information modeling (BIM) and virtual design and construction (VDC) processes can ease a project’s overall development.
VRF: Overcoming challenges to achieve high efficiency
Variable refrigerant flow systems can result in effective, high-efficiency HVAC designs, but care must be taken to achieve proper ventilation, humidity control, and compliance with ASHRAE Standard 15.
Top 5 Consulting-Specifying Engineer Articles, April 2-8
Overlooked ASHRAE 90.1 requirements, emergency lighting best practices, HVAC and lighting controls integration, and designing efficient schools were Consulting-Specifying Engineer's most clicked articles from last week, April 2-8. Were you out last week? You can catch up here.
Your questions answered: K-12 schools and colleges/universities
The March 29, 2018, “HVAC: Schools (K-12 and colleges/universities)” webcast presenters addressed questions not covered during the live event.
Top five benefits of HVAC and lighting control integration
System integration results in increased energy efficiency, lower costs, and overall enhanced design.
Top 5 Consulting-Specifying Engineer Articles, March 26-April 1
ASHRAE 90.1 compliance, specifying AHUs, designing electrical rooms, critical power, and overlooked ASHRAE 90.1 requirements were Consulting-Specifying Engineer's five most clicked articles from last week, March 26-April 1. Were you out last week? You can catch up here.
Wellness and productivity headline design features at Gensler’s new San Diego studio
Many design considerations went into designing the new Gensler studio in downtown San Diego. There was a focus on creating a human-centric space, as well as an effort to construct an efficient office.
Case study: HVAC and lighting control integration
Energy efficiency was a key driver when designing the fit-out of a company’s North American headquarters.
Designing efficient K-12 schools: Sustainable buildings/energy efficiency
In a digital age, children across the U.S. are more technologically advanced than ever—and they require educational facilities that can keep up. Here, engineers with experience working on K-12 schools share views on sustainable buildings and energy efficiency.
Top 5 Consulting-Specifying Engineer Articles, March 19-25
ASHRAE 90.1 compliance, Lean principles of design-build, designing electrical rooms, NFPA 101 in hospitals, and critical power were Consulting-Specifying Engineer's five most clicked articles from last week, March 19-25. Were you out last week? You can catch up here.
Designing efficient K-12 schools: HVAC
In a digital age, children across the U.S. are more technologically advanced than ever—and they require educational facilities that can keep up. Here, engineers with experience working on K-12 schools share views on HVAC.
Radiant technology: Artfully designed and inspired by nature
Radiant heating and cooling offers a flexible and sustainable answer to maintaining a comfortable indoor environment.
Specifying AHUs for health care facilities
Air handling units are central to most HVAC systems in all nonresidential building types. This article looks at the codes/standards that define correct specifications and outlines best practices for calculating an AHU's requirements in a health care facility.
Case study: OR air handling upgraded
A hospital’s operating room air handling units (AHUs) were updated to meet new requirements.
Designing efficient K-12 schools
In a digital age, children across the U.S. are more technologically advanced than ever—and they require educational facilities that can keep up. Here, engineers with experience working on K-12 schools share views on what’s trending.
Specifying AHUs is a balancing act on every project
Engineers face a dizzying number of codes, standards, and project-specific requirements, limitations, and expectations for air handling units (AHUs). This article provides a roadmap for navigating the most critical of these considerations.
Case study: A tale of two towers
Different air handling unit (AHU) designs meet different building criteria.
Best practices for HVAC and lighting controls integration
Follow these best practices to successfully integrate lighting and HVAC systems while also ensuring code compliance.
HVAC webcast: K-12 schools and colleges/universities
Providing cooling/heating comfort and energy efficiency in school buildings is an ongoing challenge for mechanical engineers. Register for this live webinar on March 29, 2018, to learn more.
Saahil Tumber joins Consulting-Specifying Engineer editorial advisory board
Saahil Tumber, PE, HBDP, LEED AP, of Environmental Systems Design Inc. has joined the editorial advisory board.
Top 5 Consulting-Specifying Engineer Articles, February 19-25
NEC’s recent changes, overlooked ASHRAE requirements, Lean principles of design-build, NFPA in healthcare buildings, and ASHRAE 90.1 compliance were Consulting-Specifying Engineer's five most clicked articles from last week, January February 19-25. Were you out last week? You can catch up here.
Designing efficient office buildings with visual appeal: HVAC
Office buildings can be highly complex, with complicated HVAC 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.
Designing efficient office buildings with visual appeal: Automation and controls
Office buildings can be highly complex, with complicated features for automation and controls and advanced technology. Experienced engineers share advice on how to handle these structures and identify trends impacting such structures now and in the future.
Top 5 Consulting-Specifying Engineer Articles, Jan. 22-28
NFPA 110 and NEC requirements, arc flash mitigation and solar systems, integrating fire alarm and HVAC systems, sizing domestic water pipes, and code compliance for lighting systems were Consulting-Specifying Engineer's five most clicked articles from last week, January January 22-28. Were you out last week? You can catch up here.
Achieving compliance with ASHRAE 90.1
ASHRAE Standard 90.1: Energy Standard for Buildings Except Low-Rise Residential Buildings is one of the main drivers used in any building design. The 2016 edition hasn't been adopted by all jurisdictions, however engineers should understand the key elements of this important standard.
Case study: Hospital achieves HVAC energy compliance
ASHRAE 90.1, Appendix G, allowed a path for energy compliance for the Great River Medical Center.
Top 5 Consulting-Specifying Engineer Articles, Jan. 8-14
Designing emergency power systems, solar arc flash mitigation, laboratory and research facility projects, 2017 HVAC study, and data center design were Consulting-Specifying Engineer's five most clicked articles from last week, January 8-14. Were you out last week? You can catch up here.
Top 5 Consulting-Specifying Engineer Articles, Jan. 1-7
The 2017 HVAC study, designing fire protection systems, using various power sources, simplifying code compliance for lighting, and integrating fire alarm and HVAC sytems were Consulting-Specifying Engineer's five most clicked articles from last week, January 1-7. Were you out last week? You can catch up here.
Top 5 Consulting-Specifying Engineer Articles, Dec. 25-31
NEC changes, data center design, 2017 HVAC study, developing lighting solutions, and creating productive working relationships were Consulting-Specifying Engineer's five most clicked articles from last week, December 25-31. Were you out last week? You can catch up here.
The science behind laboratory and research facility projects: HVAC and sustainability/energy efficiency
Engineers need to consider many factors including HVAC and sustainability/energy efficiency 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.
2017 HVAC, building automation systems study
Here are five HVAC and BAS findings as they relate to educational facility projects.
Top 5 Consulting-Specifying Engineer Articles, December 11-17: NFPA 110 and NEC requirements, hospital utility plant case study, data center design, and more.
NFPA 110 and NEC requirements, hospital utility plant case study, data center design, PV feasibility studies, and integrating fire alarms and HVAC systems were Consulting-Specifying Engineer's five most clicked articles from last week, December 11-17. Were you out last week? You can catch up here.
Case study: Hospital central utility plant
A hospital needed a replacement central utility plant that complied with current codes.
Top 5 Consulting-Specifying Engineer Articles, November 13-19: VFDs and harmonic mitigation, plumbing system requirements, designing medical buildings, and more
VFDs and harmonic mitigation, plumbing system requirements, designing medical buildings, unanswered questions from electrical hazards webcast, and building efficient colleges were Consulting-Specifying Engineer's five most clicked articles from last week, November 13-19. Were you out last week? You can catch up here.
How to design medical buildings: HVAC and automation systems
Hospitals and health care buildings have become very sophisticated. Coordination among all parties, special attention to codes and standards, and a focus on patient comfort have each become highly important to engineers. HVAC system design contributes to indoor air quality, indoor environmental quality, and general health.
An outline of boiler industry potential and market trends
Regional, regulatory, and strategic landscape to influence the boiler industry market trends.
Top 5 Consulting-Specifying Engineer Articles, October 30 – November 5: MEP Giants, best practices for building integration, specifying fire detection systems, and more.
MEP Giants, best practices for building integration, specifying fire detection systems, 2017 Commissioning Giants, and implementing ASHRAE 62.1 were Consulting-Specifying Engineer's five most clicked articles from last week, October 30 - November 5. Were you out last week? You can catch up here.
Top 5 Consulting-Specifying Engineer Articles, October 16-22: MEP Giants, 2017 Commissioning Giants, predicting electrical equipment failures, and more.
MEP Giants, 2017 Commissioning Giants, predicting electrical equipment failures, detecting electrical equipment failures, and strategies for implementing ASHRAE 62.1 were Consulting-Specifying Engineer's five most clicked articles from last week, October 16-22. Were you out last week? You can catch up here.
Top 5 Consulting-Specifying Engineer Articles, October 9-15: Implementing ASHRAE 62.1, Pumping station case study, 2017 Commissioning Giants, and more
Implementing ASHRAE 62.1, Pumping station case study, 2017 Commissioning Giants, complexities of industrial manufacturing, and the rise of the digital building were Consulting-Specifying Engineer's five most clicked articles from last week, October 9-15. Were you out last week? You can catch up here.
The complexities of industrial, manufacturing, and warehouse facilities: HVAC and sustainable buildings/energy efficiency
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 HVAC and sustainable buildings/energy efficiency.
2017 HVAC and building automation systems study
Respondents to the Consulting-Specifying Engineer 2017 HVAC and Building Automation Systems Study identified seven high-level findings.
Basics of boiler selection
Boiler codes and design standards provide the basic guidelines for boiler application, design, construction, and operations.
Six steps for designing ground heat exchangers
Designing ground-coupled heat pump (GCHP) HVAC systems requires careful consideration of system configuration and the ability to clearly navigate the design paths within the owner’s budget. A GCHP system can be either an economical system or a source of continual heartburn for the engineer and owner. Understanding GCHP design considerations and operational requirements is necessary to design an economical and efficient project.
Four strategies for implementing ASHRAE 62.1 in HVAC systems
There’s room in ASHRAE 62.1 to improve energy efficiency in a commercial ventilation system.
The art of designing sports, entertainment, and specialty structures: HVAC
Entertainment venues are big businesses—and big on complexity, with a host of complex systems and requirements for engineers to tackle. Heating, ventilation, and air conditioning are a big-ticket engineering challenge.
Professional Engineering Consultants: Experiential Engineering Building
Electrical, power; energy, sustainability; HVAC, mechanical; plumbing, piping.
Wood Harbinger: Naval Base Kitsap industrial control system modernization
Commissioning, retro-commissioning; electrical, power; energy, sustainability; HVAC, mechanical.
Tips to design multifamily and mixed-use buildings: Sustainability, energy efficiency
Multifamily dwellings and mixed-use buildings are becoming more prevalent. Some best practices and tips for incorporating sustainable and energy-efficient systems are offered forengineering systems in these residential buildings.
Tips to design multifamily and mixed-use buildings: HVAC
Multifamily dwellings and mixed-use buildings are becoming more prevalent. Some best practices and tips are offered for HVAC and mechanical engineering systems in these residential buildings.
Tips to design multifamily and mixed-use buildings: Fire, life safety
Multifamily dwellings and mixed-use buildings are becoming more prevalent. Some best practices are offered for engineering fire and life safety systems in these residential buildings.
ASHRAE’s new energy standard for data centers
ASHRAE Standard 90.4 is a flexible, performance-based energy standard that goes beyond current ASHRAE 90.1 methodology.
Integration: electrical and HVAC systems
Integration of electrical and HVAC systems requires both careful design and integrated controls. This type of system integration can provide a more energy-efficient building.
Modernizing the Wrigley Field chilled-water system
Selecting and specifying the right chiller is generally dictated by capacity, and there are many philosophies on the best way to control, operate, and calculate system operational costs.
High expectations for high-performance buildings: HVAC
High-performance buildings are intricate, complex projects that require attention—qualified, expert consulting-specifying engineers apply their knowledge on such projects specifically within the HVAC segment.
Case study: University heat-recovery system
The Vanderbilt Engineering Science Building employed a heat-recovery system for flexible HVAC use.
Recovering waste heat in buildings
Waste-heat recovery systems are increasingly used in buildings to move waste heat from laboratories, data centers, or industrial activities to provide beneficial heating in other parts of the building.
Check into hotel, motel, resort high-tech designs: HVAC and sustainable buildings/energy efficiency
Hotels, motels, and resorts accommodate thousands of people. Here, engineers explain just how challenging it is to deliver unique design concepts and ensure these structures are in compliance specifically in regards to HVAC and sustainable buildings/energy efficiency.
Using performance-based design for DOAS
Performance-based design influences the specification of dedicated outside air systems (DOAS) products and systems.
Top 5 Consulting-Specifying Engineer Articles, May 8-14: paralleling generator systems, designing emergency power, smart lighting, HVAC design, top job-hunting tips
Articles about paralleling generator systems, designing emergency power, smart lighting, HVAC design, and top job-hunting tips were Consulting-Specifying Engineer's five most clicked articles from last week, May 8 to 14. Were you out last week? You can catch up here.
Your questions answered: HVAC: How upcoming part-load efficiency regulations will influence rooftop system designs
Questions not answered during the April 27, 2017, event are tackled here.
Analyzing data centers: fire/life safety and HVAC
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 in regards to fire/life safety and HVAC.
Using BIM for project coordination
BIM is used frequently when working across multiple disciplines, which can prevent clashes across mechanical, electrical, plumbing, and fire protection engineering and with other stakeholders.
HVAC, BAS in industrial facilities
Fifty-seven percent of respondents to the Consulting-Specifying Engineer 2015 HVAC and Building Automation Systems (BAS) Study specify, design, or make product selections for industrial/manufacturing facilities/warehouses.
Touchscreen HVAC systems controller
The AAON Touchscreen Controller is an economical HVAC unit control solution for energy-savings applications.
Connected-equipment controller
The Eclypse Connected Equipment Controller is designed to satisfy the needs of a wide range of small and medium terminal HVAC equipment applications, with a diversified I/O count in a compact design and footprint for easy in-cabinet installation.
Variable-speed chiller
The AquaForce 30XV air-cooled variable-speed chiller was developed to ensure performance and efficiency that meet the cooling needs of tomorrow's buildings, in a design that's ready for action today.
Air-cooled screw chiller
The YORK YVFA free-cooling, air-cooled screw chiller combines variable-speed drive (VSD) screw compressors with integrated waterside economizer "free cooling" into a simple-to-operate package that is AHRI-certified.
ECM fan array
The software-selectable, factory-installed electronically commutated motor (ECM) fan array integrated with semi-custom air handlers accommodates up to 20 ECM fans in 40 arrangements to meet application requirements.
Anti-microbial cooling tower
The Anti-Microbial Cooling Tower boasts additional protection against Legionella risk.
Steam-dispersion panel
Designed and built for HVAC systems where moderate-capacity humidification requirements are common, the Ultra-sorb MP is a framed steam-dispersion panel for pressurized and atmospheric steam applications in air handling units or ducts.
Air-displacement system
DataSox distributes a large volume of air down into data center cold aisles, but with low 400-fpm velocities that don't upset critical equipment intake and exhaust or room return-air-containment balances.
Exhaust fan, stack assembly
The FumeJet pre-engineered exhaust fan with integral stacks is designed to safely remove and disperse fumes and odors.
High-rise fan coil unit
The MiniReStoraMOD is a small high-rise fan coil solution.
Heat-recovery system
The LG Multi V S is a single-phase variable refrigerant flow (VRF) 5-ton heat-recovery system.
Axial integral horsepower motor
The UlteMAX is an axial integral horsepower motor with a reduced length of less than 5 in. and an overall footprint reduction, resulting in it being 50% lighter than conventional radial motors.
Floor-mounted indoor unit
The MFZ-KJ floor-mounted indoor unit features Multi-flow Vane Technology.
Wall-mounted indoor unit
The MSZ-EF wall-mounted indoor unit can be used in combination with multizone technology, including the Hyper-Heating Inverter (H2i) systems that can deliver heat in even the coldest climates to create a Diamond Comfort System.
High-density cooling system
The InRow DX assists data center managers in meeting the evolving cooling needs of an ever-changing data center environment.
Cooling tower
The Marley NC Everest Cooling Tower is a cross-flow evaporative cooling system that provides up to 50% more cooling capacity than other single-cell, factory-assembled cooling towers.
Opposing-port tee
The ProPEX EP opposing-port tee was developed for PEX hydronic heating and cooling applications with back-to-back installation-spacing constraints, such as vertical riser applications, vertical hi-stack fan coils, and heat pumps.
HVAC clamp meter
The Fluke 902 FC True-rms HVAC clamp meter is a wireless Fluke Connect-enabled meter designed to improve the productivity of HVAC technicians in the field.
Air handling unit
V3 Series air handling units with energy-recovery wheels are available from 450 to 10,000 cfm and provide a solution to help a building exceed ASHRAE standards and acquire LEED points.
Smart industrial fan
The Powerfoil X3.0 smart industrial fan produces 15% more airflow than its predecessor without compromising durability and reliability.
High-precision heater humidifier
The heaterSteam titanium features heating elements designed to work with extremely aggressive water, such as demineralized/deionized water with conductivity below 1 µS/cm and softened water of up to 0°fH.
Achieving resilient power and clean air
Power suppliers are increasingly relying on businesses to run their standby diesel generators, but the government also faces a challenge to meet air quality limits. Is it possible to have both?
How advancing standards and technologies can capture more part-load energy savings
This article is the conclusion of a two-part series on part-load efficiency. Part 1 examined how standards are evolving. Part 2 looks at how technologies are advancing to deliver more part-load energy savings.
Designing for better indoor air quality
Indoor air quality needs to be a higher priority during the design process of living and working spaces because it is vital to occupant health and well-being.
Making the grade with K-12 projects: HVAC
With state-of-the-art learning facilities, sustainability concerns, and modern design, K-12 schools can be just as advanced as colleges and universities and—for consulting-specifying engineers—just as demanding. The following focuses on HVAC systems in K-12 schools.
Centrifugal chiller with environmentally sustainable refrigerant
Carrier's AquEdge 19DV centrifugal chiller with Greenspeed intelligence and a low Global Warming Potential (GWP) refrigerant.
Building controls drive smart lighting, HVAC design
Driven by market demand to reduce operating costs, the combination of efficient lighting technology, versatile controls, and sophisticated modeling tools offers new opportunities to improve overall building performance.
How to address thermal comfort in commercial buildings
There are many factors to consider when providing thermal comfort, including being compliant with codes and standards and methods of air distribution.
Sammamish Community and Aquatic Center makes a splash
In the spring of 2016, the Sammamish Community and Aquatic Center opened to large crowds of active adults and playful children. Created in collaboration with the YMCA, the facility realizes Sammamish’s goal of creating sustainable facilities for its growing population.
Engineering flexible office buildings: HVAC
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 for HVAC systems.
IoT starter kits
The IoT Quick Start family includes the impAccelerator Solution Kits, impExplorer Kits, and Breakout Boards for various IoT applications.
UVGI light system
The Mini UV CE is an ultraviolet germicidal irradiation (UVGI) light system with an advanced power supply.
Indoor/outdoor heat pumps
The Arctic Series is a heat pump with standard inverter technology for heating and cooling.
MEP/FP design for MRI suites, part one: mechanical considerations
In a two-part series, the importance of effective mechanical, electrical, plumbing, and fire protection systems design for magnetic resonance imaging suites is examined. Part one focuses on mechanical considerations.
Plug-and-play control system
Verasys is designed as a plug-and-play controls system that integrates heating, ventilation, air-conditioning, and refrigeration (HVACR) equipment and controls.
How advancing standards and equipment can improve building energy performance
This article is Part 1 of a two-part series on part-load efficiency. Increased emphasis on part-load efficiency is contributing to whole-building efficiency.
Designing positive and negative isolation rooms
To minimize the spread of airborne infections, certain rooms within a hospital are designed with either negative or positive pressure.
Free application suite for engineers
The eCAPS Engineer Application Suite from Greenheck has expanded to include fans and louvers.
Top 5 Consulting-Specifying Engineer Articles, December 26-January 1: NEC 2017 changes, economics of HVAC systems, assessing replacement electrical systems, more
Articles about NEC 2017 changes, HVAC system economics, replacement electrical systems, fan-efficiency rules, and the whole-system approach were Consulting-Specifying Engineer's five most clicked articles from last week, December 26-January 1. Were you out last week? You can catch up here.
Case study: Modular data center units improve energy efficiency
The National Bank of Abu Dhabi (NBAD)’s project to create a modular data center (MDC) solution, also provides energy-saving benefits.
Case study: The National Bank of Abu Dhabi Showcase project
The National Bank of Abu Dhabi (NBAD) implemented a multi-phase project for a modular data center (MDC) solution.
How to choose a modular data center
Modular data centers can be cost-effective, scalable options. There are several variables to consider, however, when comparing them to brick-and-mortar facilities.
Battling the complexity of designing government facilities: HVAC
The government can be a tough customer, and the projects that state, municipal, federal, and military entities approach engineers about are highly complex. Here, engineers with experience tackling such tall orders offer advice regarding HVAC systems.
Battling the complexity of designing government facilities
The government can be a tough customer, and the projects that state, municipal, federal, and military entities approach engineers about are highly complex. Here, engineers with experience tackling such tall orders offer advice on how to execute successfully.
Top 5 Consulting-Specifying Engineer Articles, December 19-December 25: NEC 2017 changes, economics of HVAC systems, medical and hospital projects, more
Articles about NEC 2017 changes, economics of HVAC systems, medical and hospital projects, professional salaries, and NFPA 110-2016 were Consulting-Specifying Engineer's five most clicked articles from last week, December 19-December 25. Were you out last week? You can catch up here.
Why engineers should use a whole-system approach for design and construction
Using a whole-system approach to specifying equipment can lead to many benefits, such as improving the building’s energy efficiency.
Heat pump with single-zone VAV technology
The K-Series heat pump model is designed for high-efficiency design builds, and aiding in sustainable building.
Air-cooled heat pump
The pump operates in cooling, heating, or heat recovery modes to allow buildings to harness energy already being produced and not used.
Calculating economics of HVAC systems
Codes and standards, equipment efficiencies, energy modeling, commissioning, energy-conservation incentive programs, and lifecycle cost analysis all play into determining the economics of HVAC systems. Included are key aspects a mechanical engineer may need to consider when specifying HVAC systems into new or existing buildings, with a focus on the economic analysis provided to the client.
Project in Progress: Apex Friendship Middle School December update
3D imaging is also enabling the design team to address potential issues.
Cooling towers and abatement system
The Marley NC Everest cooling tower is designed to deliver faster cooling than field-erected towers and constructed to withstand the rigors of power and industrial applications.
All-air VAV system versus chilled-beam-system energy consumption at design and part-load conditions
At full design load and at 72% of design load, both systems must deliver the same amount of cooling to the space to maintain room temperature set point. Further reduction of load in the room results in all-air VAV systems delivering the same level of cooling and having to offset overcooling with parasitic reheat. Chilled-beam systems are able to reduce energy consumption by reducing cooling delivered to the space without the use of parasitic reheat.
Split system for light applications
The split system heat pumps and TCD air conditioners support 3-phase, 230/460-V light commercial applications.
Operating on medical and hospital projects: fire/life safety and HVAC
Engineers tasked with working on hospital and medical campuses find themselves tackling unique challenges: evolving technology, increased specialization, and maintaining operations while under construction. Here, professionals with experience on such facilities share advice on how to finish projects that report a clean bill of health for HVAC and fire/life safety.
Two-stage compressor and gas heating
The Champion LX Series residential packaged equipment line has been expanded to offer high-efficiency 16 SEER models designed to provide consistent comfort while reducing energy consumption.
Water heating and cooling unit
The Envision2 NXW Reversible Chiller is designed to provide water heating and cooling for pools, commercial aquariums, radiant floor, ice melt, and industrial process water applications.
Top 5 Consulting-Specifying Engineer Articles, November 7-13: Analyzing nontraditional HVAC systems, 2016 Product of Year winners, driving motor efficiency, more
Articles about analyzing nontraditional HVAC systems, 2016 Product of Year winners, driving motor efficiency, evaluating condensation and condensate, and answers to questions about next-generation lighting were Consulting-Specifying Engineer's five most clicked articles from last week, November 7-13. Were you out last week? You can catch up here.
Maximizing a manufacturer’s combined heat and power plant
A Midwestern manufacturing facility opted for a hybrid combined-cycle steam turbine generator solution.
Floor mounted walk-in hoods for large processes
The walk-in hoods are designed for synthesis, distillation, and other rack type operations where a tall apparatus is used or equipment is rolled into the work area.
Online education: Fan Efficiency: Lowering Fan Energy Use
This four-week course will review fan basics, introduce the proposed Department of Energy (DOE) regulation, and suggest how to use the DOE metric to drive air moving system efficiency up. Emerging utility rebate programs that will be coming, along with fan performance monitoring tools, also will be introduced.
Packaged rooftop replacement solution
The units feature an exact-fit replacement design that matches the units to footprints of other manufacturers’ units.
Heat pumps and air conditioners with smart controls
The 10-ton packaged heat pumps and 3- to 5-ton air conditioning units are designed with an exact-fit replacement design that matches to footprints of other manufacturers' units and eliminates the need for a curb adapter.
Split system heat pump and air conditioner
The 3-phase heat pumps and air conditioners use R-410A refrigerant and employ robust condenser coils for optimal heat transfer.
Exploring the high demands for higher education facilities: HVAC
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 HVAC.
Wind-driven rain louver
Pottorff ECV-445 wind-driven rain louver offers increased protection and lower cost than its previous models.
Exploring the high demands for higher education facilities
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.
VFD series pump controller
Bell & Gossett's TECHNOLOGIC is an intelligent pump controller with two advanced controller functions.
Auto scrubber self-cleaning hood system
Greenheck’s GWAE self-cleaning auto scrubber hood system cleans both sides of the filters in place along with the inside of the exhaust plenum.
Integrated variable-speed drive screw chiller
York's YVFA AHRI-certified free-cooling air-cooled screw chiller offers low energy consumption and lifecycle costs.
Evaluating condensation and condensate
Learn methods to capture, control, dispose, and derive the condensation requirements within HVAC systems.
Split system heat pumps and air conditioners with 3-phase models
LX Series 14 SEER heat pump and air conditioner line adds 3-phase models for light commercial applications.
Analyzing nontraditional HVAC systems
Incorporating set thermal comfort criteria provides many benefits while increasing the use of high-performance HVAC systems for energy reduction.
Case study: Schools’ air conditioning
Scenarios are studied to ensure thermal comfort criteria in classrooms.
Know when, where to specify VRF systems
Variable refrigerant flow (VRF) offers an alternate HVAC solution. Its key attributes include zonal control, energy efficiency, and indoor air quality (IAQ). To help facilitate their successful design and operation, engineers should take advantage of the available resources and training offered by manufacturers, utilities, and others.
Wall mount gas-fired boilers
FreeStyle 155 k Btuh (FS-155) input is a wall mount gas-fired condensing boiler and is available in combi and heat models.
Designing with liquid-immersion cooling systems
Liquid cooling is an option in some data centers. Consider these best practices when looking at immersion cooling for your next data center project.
Driving motor efficiency
Motor-driven equipment accounts for a large percentage of the electricity consumed in the industrial building sector of the U.S. However, that number is decreasing as motors and drives become more efficient. Electrical motor energy consumption is the largest source of electricity usage worldwide, using 69% of the sector energy, per IEA’s 2011 Energy Efficiency Opportunities white paper. Motors used in HVAC systems represent a great deal of untapped, relatively easily obtained energy savings as well. This article will review motors and drives, the codes and standards that dictate their design, and energy efficiency standards.
Top 5 Consulting-Specifying Engineer Articles, September 12-18: Product of the Year winners, MEP Giants, integrating electrical and HVAC systems, more
Articles about the 2016 Product of the Year winners, MEP Giants, integrating electrical and HVAC systems, managing transformer inrush current, and HVAC codes and standards were Consulting-Specifying Engineer's five most clicked articles from last week, September 12-18. Were you out last week? You can catch up here.
The demands of mixed-use facilities: HVAC
Mixed-use facilities require engineers to handle several complex components. Here, engineers with experience on such facilities offer advice on bringing successful execution into the mix with HVAC systems.
Dual module louver against water penetration
Model EVH-901 dual module louver provides for high volume intake and exhaust ventilation and protects against water penetration under the severe wind-driven rain conditions.
The benefits of using water-source heat pumps
Water-source heat pumps prove to be more energy-efficient than alternative systems for commercial buildings.
Cooling for computing spaces
Liebert SRC provides cooling for computing spaces such as network closets and server rooms.
Cooling tower withstanding rigors of power
Marley NC Everest cooling tower is a pre-assembled, crossflow evaporative cooling system.
Designing flexibility into small space renovations
Every renovation project comes with its own unique set of challenges, and there is never a one-size-fits-all solution to incorporate flexibility into a project.
Air humidifier market size
The air humidifier market size was more than $850 million in 2015 and is anticipated to grow at 5.2% CAGR from 2016 to 2023, to exceed $1.3 billion by 2023.
Facing the challenges of mixed-use buildings: HVAC
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 for specialty buildings and HVAC systems.
Ductless HVAC systems
Ductless systems provide temperature control with the capability for zone level control, centralized level control, and building level control.
Facing the challenges of mixed-use buildings
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. Trends for specialized facilities are also explored.
A systems future for commercial buildings
The need for efficiency improvement has traditionally been converted into incremental goals that could be ratcheted up through the revision of standards.
Enclosures for lab-automated processes
EnviroMax enclosures are engineered to isolate lab automation instrumentation and processes that include liquid handling, powder and sample weighing, and high-throughput screening.
Dial set boiler fill valve
BD1156 dial set boiler fill valve provides boiler installers and end users a fast way to fill hydronic heating systems.
Kohler Ronan LLC: Marist College Natural Science & Applied Health B
Commissioning, retro-commissioning; electrical, power; fire, life safety; HVAC, mechanical; plumbing, piping; IT/security; construction administration.
exp: Trump International Hotel
Automation, controls; electrical, power; HVAC, mechanical; energy, sustainability; plumbing, piping.
Top 5 Consulting-Specifying Engineer Articles, August 1-7: future of professional engineers, NFPA 72, electrical and HVAC systems, more
Articles about future of professional engineers, NFPA 72, electrical and HVAC systems, facility water use, and medium-voltage electrical systems are Consulting-Specifying Engineer's five most clicked articles from last week, August 1-7. Were you out last week? Miss something? You can catch up here.
Centrifugal fume exhaust packaged models
FumeJet is pre-engineered, centrifugal fume exhaust packaged models offer discharge to reduce and prevent exposure to harmful fumes and odors outdoors.
Top 5 Consulting-Specifying Engineer Articles, July 25-31: future of professional engineers, NFPA 72, medium-voltage electrical systems, more
Articles about future of professional engineers, NFPA 72 changes, medium-voltage electrical systems, COPS, and NFPA 99 are Consulting-Specifying Engineer's five most clicked articles from last week, July 25-31. Were you out last week? Miss something? You can catch up here.
Critical facility temperatures management with low energy costs
InRow DX 600mm maintains critical facility temperatures while having low energy costs and enhanced controls.
Heat pump for safe operation in commercial application
Versatec Ultra Single Hydronic heat pump features Aurora base controls to ensure safe, reliable operation.
Industrial fan with little horsepower requirement
Using little horsepower, Titan industrial fan is designed to offers an efficient CFM per watt, low installation cost, light weight, and easy maintenance.
Two-beam ultrasonic flowmeter for high flow rates
Optisonic 8300 two-beam ultrasonic flowmeter is capable of handling high flow rates of superheated steam.
HVAC for Data Centers
When developing data center energy-use estimations, engineers must account for all sources of energy use in the facility.
Variable refrigerant flow cooling and heating systems
Low ambient variable refrigerant flow (VRF) cooling and heating systems provide energy efficiency with individualized comfort to commercial and light commercial buildings in cooler climates.
Cooling system with electronically commutated motors
Recold Vector Adiabatic cooling system provides low energy usage and a small footprint.
Chillers for office and municipal buildings
Small tonnage CenTraVac chillers for office and municipal buildings offer a choice of current, high-efficiency refrigerant R-123 or R-514A.
Electrically commutated motor technology for air curtain applications
Eco-Motor is electrically commutated motor technology designed specifically for air curtain applications.
Hydronic condensing boiler
CFLC boilers are engineered in a high mass firetube design, utilizing extended heating surface.
High-performance medical and educational building design: HVAC
The design of high-performance medical and educational projects are challenging and need to meet specific standards, codes, and trends. There can be unique HVAC system requirements for high-performance buildings.
Regulation of commercial, industrial fan efficiency
The new proposed Department of Energy standard will drive changes on how engineers design air systems for peak fan efficiency.
Infrared camera for in-focus images
Ti450 infrared camera with MultiSharp focus delivers images automatically focused throughout the field of view.
Rooftop replacement with a heat pump
Eclipse rooftop replacement solution features a heat pump with adjustable defrost and three heat capacities, two cabinet heights and footprint sizes, as well as a choice of cooling or electric heat configurations.
Direct drive supply fan for make-up air
DGX and MSX can be configured with a direct drive, backward-curved plenum supply fan.
Zero energy and onsite thermal energy storage
To bring the building community together, the DOE conducted an extensive process involving various industry stakeholders with the goal of reaching a common definition.
Variable speed control for 3-phase motors
Vari-Green Drive Model VGD-100 is a factory-mounted and wired variable speed control for 3-phase motors up to 10 hp.
Key factors to size VFDs
Optimize a VFD’s efficiency and cooling-air requirements by following these key points.
Stand-alone health care buildings: HVAC
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. Indoor air quality, indoor environmental quality, and other factors make HVAC systems a high priority.
Retrofitting HVAC systems in existing buildings
While the mechanical engineering team has much more control over how HVAC systems are designed and how they fit into the facility for new construction, retrofitting HVAC systems to accommodate existing buildings is considerably more challenging.
HVAC: Cooling systems
HVAC systems consume 25% to 30% of the energy in a typical commercial building; functionally intensive buildings with controlled environments and large process loads can consume more than this.
Ductless outdoor units
The Performance Series is suite of ductless products that provide heating capacity at 5°F and heating operation down to -22°F.
Managing the complexities of natatoriums—part two
RTM Principal Doug Brewer shares his expertise on natatoriums, frequently referred to as indoor swimming pools.
Your questions answered: HVAC: Cooling systems
The May 12 "HVAC: Cooling systems" Webcast presenters addressed questions not covered during the live event.
Managing the complexities of natatoriums—part one
In a two-part series, RTM Principal Doug Brewer shares his expertise on natatoriums, commonly referred to as indoor swimming pools.
Chiller system with intelligence option
AquaSnap 30RAP chiller features the Greenspeed intelligence option, which includes variable speed technology that increases energy-efficiency and delivers quiet operation.
Fusion dedicated outside air system
PremiSys fusion dedicated outside air system is is a split-system consisting of a variable refrigerant flow outdoor unit and an air handler for acclimatizing outside air for commercial buildings.
Consulting-Specifying Engineer 2015 Product of the Year finalists: Air movement, humidification
Read about the five finalists in the Air Movement and Humidification category for the Consulting-Specifying Engineer 2015 Product of the Year program.
Consulting-Specifying Engineer 2015 Product of the Year finalists: Chillers
Read about the four finalists in the Chillers category for the Consulting-Specifying Engineer 2015 Product of the Year program.
Definite purpose contactor series
The GDP series of definite purpose contactors are available in 1-pole, 1-pole with shunt, or 2-pole, and 3-pole configurations and are designed for HVAC or lighting applications.
Designing chilled water systems
Typically used for cooling and dehumidifying a building’s air, chilled water (CHW) systems circulate it throughout a building or campus complex. CHW systems also may be used for removing process or other heating loads.
Selecting chillers, chilled water systems
Selecting the right chiller is generally dictated by capacity, and there are many philosophies on the best way to control, operate, and calculate system operational costs.
Kline Fitness Center Expansion, Dickinson College
Addition to existing building; Kline Fitness Center Expansion, Dickinson College; Barton Associates Inc.
Standby Generator and Administration Facility
Existing building renovation and expansion; Standby Generator and Administration Facility; CDM Smith
Texas State University
Energy audits; Texas State University; EEA Consulting Engineers
Hillshire Brands Headquarters
Existing building retrofit; Hillshire Brands Headquarters; Environmental Systems Design Inc.
The Hill School Mechanical System Upgrade
System overhaul; The Hill School Mechanical System Upgrade; Gannett Fleming
Northern California Greenfield Data Center
New construction; Northern California Greenfield Data Center; Morrison Hershfield
Plant Relocation to N.Y. and Build-out of New Machine Shop
Existing building retrofit; Plant Relocation to N.Y. and Build-out of New Machine Shop; Optimation Technology Inc.
200 Eye Street SE Renovation
Adaptive Reuse; 200 Eye Street SE Renovation; GHT Limited
New Physical Sciences Complex, Phase I and SCUB Expansion
New construction; New Physical Sciences Complex, Phase I and SCUB Expansion; Global Engineering Solutions
Skyhouse Atlanta Midtown
New construction; Skyhouse Atlanta Midtown; Jordan & Skala Engineers
U.S. District Courthouse for the Northern District of Iowa
New construction; U.S. District Courthouse for the Northern District of Iowa; KJWW Engineering Consultants
Kohler Environmental Center, Choate Rosemary Hall School
New construction; Kohler Environmental Center, Choate Rosemary Hall School; Kohler Ronan, LLC
Boiler systems: Economics and efficiencies
Engineers can meet a building’s hot water needs with today’s boiler systems.
Ultra-high-efficiency boilers
Triple-Flex ultra-high-efficiency condensing boilers by Bryan Steam LLC.
Steam boiler with control system
Fulton’s compact, low-footprint, gas-fired Tribute vertical tubeless steam boiler for commercial and industrial applications can operate at sub-9 ppm NOx and includes an advanced boiler control system
Control sequences for chilled water systems
The most important component of good chiller plant control is understanding the full and part load requirements and then matching those to system performance.
Top Consulting-Specifying Engineer Articles, August 2011
Most visited articles at www.csemag.com during August 2011 included getting to know the new lighting code, using geothermal systems to obtain net zero, chiller plants in humid zones, engineering smart hospitals, and MEP project profiles from the 2011 MEP Giants.
Condensing boiler – 2008-02-01
Consider the improved features of AERCO's Modulex line of boilers. Each unit in the 300,000 to 1 million Btuh condensing boiler line is equipped with a boiler communications module to enhance communications and support integration with BAS. Each boiler in the line combines between two and seven independent, 151,500 Btuh, pre-assembled thermal modules, housed in a common enclosure.
Product Showcase | July 2006
Visit www.csemag.com for industry news and featuresJuly 2006 Special Advertising Section Dear Reader,Here is the next edition of Consulting-Specifying Engineer's product and system solutions showcase. If you would like any additional information sent to you from any of the companies below regarding their products fill out this form . Featured Products Alber BDS-40 Battery Monitor System The Alber BDS-40 battery monitor system is designed for UPS battery cabinets using 12VDC modules. Using cables manufactured for your battery cabinet, installation is easy and straight forward.
