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Codes & Standards: HVAC

Codes & Standards: HVAC November 1, 2013

Air curtains approved as alternative to vestibules

The 2015 version of the International Energy Conservation Code will approve air curtains as an alternative to vestibules.

By Air Movement and Control Association International Inc.
Codes & Standards: HVAC October 29, 2013

Understanding the limitations of fan efficiency grades

Fan efficiency grades (FEG) are a poor metric in determining the most efficient fan (in terms of actual power consumption) for a given airflow and pressure operating point. The best simple metric to ensure the lowest power consumption is the operating brake horsepower at the specified design point.

By Tim Mathson and Anthony Rossi, Greenheck, Schofield, Wis.
Codes & Standards: HVAC October 28, 2013

Heat exchanger codes and standards

Construction and fabrication are governed and controlled by the American Society of Mechanical Engineers (ASME).

By Jose R Rodriguez, Mike Sammut, and Arslan Asovic
Codes & Standards: HVAC October 28, 2013

Heat exchanger selection and optimization

The selection process is a trade-off between the overall heat transfer coefficient, which influences the pump head on the HVAC system.

By Jose R Rodriguez, Mike Sammut, and Arslan Asovic
Codes & Standards: HVAC October 24, 2013

ASHRAE publishes 2013 version of IAQ standard

The 2013 version of ASHRAE’s indoor air quality (IAQ) standard contains several revisions to help users better meet its requirements.

By Consulting-Specifying Engineer
Codes & Standards: HVAC October 24, 2013

IAQ and energy management

Indoor air quality (IAQ) and energy management are key in K-12 schools and higher education university buildings. This information will help to provide an efficient, effective HVAC system in a school or a university building.

By Randy Schrecengost, PE, and Gayle Davis, PE, Stanley Consultants, Austin, Texas
Codes & Standards: HVAC October 24, 2013

Case study: Art center HVAC upgrade design

This example shows how upgrades were made to a deficient HVAC system in a step-by-step process.

By Randy Schrecengost, PE, and Gayle Davis, PE, Stanley Consultants, Austin, Texas
Codes & Standards: HVAC October 23, 2013

Factoring lighting into cooling loads

How to select, design, and redesign lighting systems so they complement HVAC systems.

By David Duthu, PE, and Nolan Rome, PE, LEED AP, ccrd partners, Houston
Codes & Standards: HVAC October 15, 2013

Significant changes to the commercial provisions in 2012 IECC

Significant changes to the 2012 International Energy Conservation Code (IECC) impact architects, engineers, code officials, and other building design professionals.

By Andrew Klein, PE, CEM, A S Klein Engineering PLLC, Pasco, Wash.
Codes & Standards: HVAC October 11, 2013

ASHRAE 90.1-2013 addenda released

Major changes to ASHRAE Standard 90.1 include the sections on building envelope, lighting, mechanical, and energy cost budget.

By Consulting-Specifying Engineer