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
| Jul 19, 2013
Reconstruction Sector Construction Firms [2013 Giants 300 Report]
Structure Tone, DPR, Gilbane top Building Design+Construction's 2013 ranking of the largest reconstruction contractor and construction management firms in the U.S.
| Jul 19, 2013
Reconstruction Sector Engineering Firms [2013 Giants 300 Report]
URS, STV, Wiss Janney Elstner top Building Design+Construction's 2013 ranking of the largest reconstruction engineering and engineering/architecture firms in the U.S.
| Jul 19, 2013
Reconstruction Sector Architecture Firms [2013 Giants 300 Report]
Stantec, HOK, HDR top Building Design+Construction's 2013 ranking of the largest reconstruction architecture and architecture/engineering firms in the U.S.
| Jul 19, 2013
Renovation, adaptive reuse stay strong, providing fertile ground for growth [2013 Giants 300 Report]
Increasingly, owners recognize that existing buildings represent a considerable resource in embodied energy, which can often be leveraged for lower front-end costs and a faster turnaround than new construction.
| Jul 19, 2013
Best in brick: 7 stunning building façades made with brick [slideshow]
The Brick Industry Association named the winners of its 2013 Brick in Architecture Awards. Here are seven winning projects that caught our eye.
| Jul 19, 2013
Must see: 220 years of development on Capitol Hill in one snazzy 3D flyover video
The Architect of the Capitol this week released a dramatic video timeline of 220 years of building development on Capitol Hill.
| Jul 18, 2013
Top Local Government Sector Construction Firms [2013 Giants 300 Report]
Turner, Clark Group, PCL top Building Design+Construction's 2013 ranking of the largest local government sector contractor and construction management firms in the U.S.
| Jul 18, 2013
Top Local Government Sector Engineering Firms [2013 Giants 300 Report]
STV, URS, AECOM top Building Design+Construction's 2013 ranking of the largest local government sector engineering and engineering/architecture firms in the U.S.
| Jul 18, 2013
Top Local Government Sector Architecture Firms [2013 Giants 300 Report]
Stantec, HOK, IBI Group top Building Design+Construction's 2013 ranking of the largest local government sector architecture and architecture/engineering firms in the U.S.
| Jul 18, 2013
Top State Government Sector Construction Firms [2013 Giants 300 Report]
PCL, Clark Group, Turner top Building Design+Construction's 2013 ranking of the largest state government sector contractor and construction management firms in the U.S.
