The electrical loads of computer equipment in offices have continued to increase and are now estimated to be 20-50% of a building’s energy use.
With using all that energy these devices (computers, monitors, printers projectors etc.) also generate heat. However, to date there has not been accurate data on how much of a challenge their plug loads present for cooling a building.
Now guidance to meet that challenge is contained in new ASHRAE/ANSI Standard 203-2014, Method of Test for Determining Heat Gain of Office Equipment Used in Buildings.
Glenn Friedman, chair of the Standard 203 committee, says that since there are no standards for establishing how the power consumption or heat rejection data or various plug loads is determined, it is difficult for engineers to accurately use this data in their cooling load calculations. In addition, plug-load type equipment is an every changing market and frequently and requires new testing for determining its power consumption and heat rejection for calculating the cooling load.
The cost of Standard 203-2014, Method of Test for Determining Heat Gain of Office Equipment Used in Buildings, is $41 ($35 member)