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
| Jan 3, 2012
Rental Renaissance, The Rebirth of the Apartment Market
Across much of the U.S., apartment rents are rising, vacancy rates are falling. In just about every major urban area, new multifamily rental projects and major renovations are coming online. It may be too soon to pronounce the rental market fully recovered, but the trend is promising.
| Dec 29, 2011
Seismic safety in question at thousands of California public schools
California regulators responsible for enforcing earthquake safety laws have failed to certify more than 16,000 construction projects in California public schools, increasing the risk that some projects may be unsafe, according to a state audit report.
| Dec 21, 2011
BBI key to Philly high-rise renovation
The 200,000 sf building was recently outfitted with a new HVAC system and a state-of-the-art window retrofitting system.
| Dec 20, 2011
Research identifies most expensive U.S. commercial real estate markets
New York City, Washington, D.C. and San Mateo, Calif., rank highest in rents.
| Dec 20, 2011
Aragon Construction leading build-out of foursquare office
The modern, minimalist build-out will have elements of the foursquare “badges” in different aspects of the space, using glass, steel, and vibrantly painted gypsum board.
| Dec 19, 2011
Chicago’s Aqua Tower wins international design award
Aqua was named both regional and international winner of the International Property Award as Best Residential High-Rise Development.
| Dec 19, 2011
Davis Construction breaks ground on new NIAID property
The new offices will total 490,998 square feet in a 10-story building with two wings of 25,000 square feet each.
| Dec 14, 2011
Belfer Research Building tops out in New York
Hundreds of construction trades people celebrate reaching the top of concrete structure for facility that will accelerate treatments and cures at world-renowned institution.
| Dec 13, 2011
Lutron’s Commercial Experience Center awarded LEED Gold
LEED certification of the Lutron facility was based on a number of green design and construction features that positively impact the project itself and the broader community. These features include: optimization of energy performance through the use of lighting power, lighting controls and HVAC, plus the use of daylight.
| Dec 12, 2011
AIA Chicago announces Skidmore, Owings & Merrill as 2011 Firm of the Year
SOM has been a leader in the research and development of specialized technologies, new processes and innovative ideas, many of which have had a palpable and lasting impact on the design profession and the physical environment.