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
| Oct 23, 2013
Gehry, Foster join Battersea Power Station redevelopment
Norman Foster and Frank Gehry have been selected to design a retail section within the £8 billion redevelopment of Battersea Power Station in London.
| Oct 21, 2013
University of Queensland’s net-zero building features biomimicry-based design
University of Queensland’s Global Change Institute (GCI) building in Australia showcases on-site solar energy sources, biomimicry-based design features, and the first structural use of low-carbon concrete in the country.
| Oct 18, 2013
Meet the winners of BD+C's $5,000 Vision U40 Competition
Fifteen teams competed last week in the first annual Vision U40 Competition at BD+C's Under 40 Leadership Summit in San Francisco. Here are the five winning teams, including the $3,000 grand prize honorees.
| Oct 18, 2013
Researchers discover tension-fusing properties of metal
When a group of MIT researchers recently discovered that stress can cause metal alloy to fuse rather than break apart, they assumed it must be a mistake. It wasn't. The surprising finding could lead to self-healing materials that repair early damage before it has a chance to spread.
| Oct 18, 2013
Sustainability expert: Smart building technology can have quick payback
Smart building technology investments typically pay for themselves within one or two years by delivering energy savings and maintenance efficiencies.
| Oct 14, 2013
How to leverage workplaces to attract and retain top talent
Just about every conversation I have related to employee attraction and retention tends to turn into an HR sounding discussion about office protocols, incentives, and perks. But as a workplace strategist, I need to help my clients make more tangible links between their physical workplace and how it can be leveraged to attract and retain top talent. Here are some ideas.
| Oct 10, 2013
Carnegie Mellon study looks at impact of dashboards on energy consumption
A recent study by Carnegie Mellon took a look at the impact of providing feedback in an energy dashboard form to workers and studying how it impacted overall energy consumption.
| Oct 9, 2013
SOM gets second crack at iconic modernist structure in New York
More than 50 years after SOM completed the Manufacturers Hanover Trust building, the firm is asked to restore and modernize the space.
| Oct 7, 2013
Nation's first glass curtain wall exterior restored in San Francisco
The Hallidie Building's glass-and-steel skin is generally recognized as the forerunner of today’s curtain wall facilities.
| Oct 7, 2013
10 award-winning metal building projects
The FDNY Fireboat Firehouse in New York and the Cirrus Logic Building in Austin, Texas, are among nine projects named winners of the 2013 Chairman’s Award by the Metal Construction Association for outstanding design and construction.
