ASHRAE has released a new standard that provides a test method to determine the heat gain generated by office equipment.
The growing use of plug loads coupled with insufficient data on how much energy they generate present a challenge to engineers in determining how to best cool a building.
ASHRAE/ANSI Standard 203-2014, Method of Test for Determining Heat Gain of Office Equipment Used in Buildings, prescribes methods of test to determine the range and average operating heat gains of electrical equipment for use in cooling load calculations.
The standard applies to plug-load type electrical equipment. Plug loads (computers, monitors, printers, projectors, etc.) use between 20% to 50% of a building’s energy.
Increased use of computers and advances in building techniques and building envelopes have made heat gain from electrical equipment a larger factor in engineering cooling systems.
“Most plug loads operate at a fraction of their nameplate electrical load, so, as a result, produce significantly less heat load than engineers may use in their cooling load calculations based on those nameplate values,” according to an ASHRAE statement. “This can result in over-sizing of air-conditioning equipment, resulting in extra initial cost for that equipment as well as higher operating cost.”
Related Stories
| Aug 6, 2014
25 projects win awards for design-build excellence
The 2014 Design-Build Project/Team Awards showcase design-build best practices and celebrate the achievements of owners and design-build teams in nine categories across the spectrum of horizontal and vertical construction.
| Jul 30, 2014
Wolf Point high-rise development begins construction in Chicago
Designed by Pelli Clarke Pelli Architects, the 48-story luxury residential tower is part of a three-tower mixed-use development along the Chicago River.
| Jul 28, 2014
Reconstruction market benefits from improving economy, new technology [2014 Giants 300 Report]
Following years of fairly lackluster demand for commercial property remodeling, reconstruction revenue is improving, according to the 2014 Giants 300 report.
| Jul 28, 2014
Reconstruction Sector Construction Firms [2014 Giants 300 Report]
Structure Tone, Turner, and Gilbane top Building Design+Construction's 2014 ranking of the largest reconstruction contractor and construction management firms in the U.S.
| Jul 28, 2014
Reconstruction Sector Engineering Firms [2014 Giants 300 Report]
Jacobs, URS, and Wiss, Janney, Elstner top Building Design+Construction's 2014 ranking of the largest reconstruction engineering and engineering/architecture firms in the U.S.
| Jul 28, 2014
Reconstruction Sector Architecture Firms [2014 Giants 300 Report]
Stantec, HDR, and HOK top Building Design+Construction's 2014 ranking of the largest reconstruction architecture and architecture/engineering firms in the U.S.
| Jul 23, 2014
Tallest skyscraper in South Korea now open
The Northeast Asia Trade Tower stands at 308 meters and is the focal point of the Songdo International Business District, a new 310-hectare city built on reclaimed land.
| Jul 23, 2014
Architecture Billings Index up nearly a point in June
AIA reported the June ABI score was 53.5, up from a mark of 52.6 in May.
| Jul 22, 2014
L.A.'s tallest tower to get observation deck
U.S. Bank Tower, as part of a series of improvements, will be getting an observation deck and restaurant at its top.
| Jul 21, 2014
Economists ponder uneven recovery, weigh benefits of big infrastructure [2014 Giants 300 Report]
According to expert forecasters, multifamily projects, the Panama Canal expansion, and the petroleum industry’s “shale gale” could be saving graces for commercial AEC firms seeking growth opportunities in an economy that’s provided its share of recent disappointments.