Recent research that looks at the method used to determine thermal comfort in ANSI/ASHRAE Standard 55 published in an article, “Energy Consumption in Buildings and Female Thermal Demand,” in Nature Climate Change, misinterpreted data, according to ASHRAE.
“The interpretation of the authors regarding the basis for Standard 55 is not correct,” Bjarne Olesen, Ph.D., a member of the ASHRAE Board of Directors, thermal comfort research and former chair of the Standard 55 committee, said. “The part of the standard they are referring to is the use of the PMV/PPD index. This method is taken from an ISO/EN standard 7730, which has existed since 1982. The basic research for establishing comfort criteria for the indoor environment was made with more than 1,000 subjects with an equal amount of women and men.
“In the main studies, where they did the same sedentary work and wore the same type of clothing, there were no differences between the preferred temperature for men and women. So the researchers’ finding of a lower metabolic rate for females will not influence the recommended temperatures in the existing standards. Also their study is not conclusive. They only studied 16 females at a sedentary activity.
“They should also have studied 16 men at the same activity to be able to compare. The reason why we, in some field studies, find that women prefer higher room temperature than men is attributed to the level of clothing. Women better adapt their clothing to summer conditions while men are still wearing suits and ties. So if the thermostat is set to satisfy the men, the women will complain about being too cold. In the standard, this adaption of clothing to summer is taken into account. So if the standard is followed, the women would be satisfied; but maybe not the men.”
Related Stories
| Feb 19, 2014
Obama Administration moves to boost fuel efficiency standards on heavy-duty vehicles
The Obama Administration wants to boost fuel efficiency of medium- and heavy-duty trucks for models made in 2019 and later.
| Feb 19, 2014
Net Positive Energy + Water is latest green certification standard
The advancement of sustainable construction has reached a new milestone with the development of Net Positive Energy+Water, a new green building certification standard that aims to improve net zero approaches to energy and water conservation.
| Feb 19, 2014
Obama’s climate resilience panel says PVs, cool roofs should be part of solution
Among the suggestions were rooftop solar energy systems and cool roofs, which could be encouraged by policies from local governments.
| Feb 19, 2014
OSHA proposes three-year postponement of crane operator certification requirement
OSHA’s proposal to postpone the compliance date for crane operator certification by three years was made official on Feb. 7 when it was published in the Federal Register.
| Feb 19, 2014
USGBC introduces new online educational platform
The U.S. Green Building Council has introduced “Education @USGBC” a new educational platform.
| Feb 17, 2014
Channeling weather forecasts to building systems can yield significant energy savings
Using weather forecasts to predict outdoor temperature changes can lead to significant energy savings, exceeding 10%, researchers say.
| Feb 17, 2014
Lawmakers may take away control of Florida hospital project from the VA
The project is $100 million over budget and has missed its scheduled completion date.
| Feb 17, 2014
Business, labor at odds over toughening of OSHA silica dust rule
OSHA says the rules will protect workers and prevent 700 fatalities annually. Others say the rules would hurt businesses and jobs.
| Feb 17, 2014
Tulsa, Okla., mulls code change to require storm shelters in new schools
State and city officials are pushing for increased bonding capacity to pay for the storm shelters.
| Feb 13, 2014
Appraisal Institute issues guidelines on evaluating green property
The Appraisal Institute and the Institute for Market Transformation have issued guidelines for training property appraisers to evaluate green buildings.