On a hot day in the summer, the inside surface temperature, especially of windows that receive solar radiation, can be quite a bit higher than the instantaneous air temperature.
Joe
Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx
http://weather.whiteboxtechnologies.com
http://www.whiteboxtechnologies.com
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(c) (510)928-2683
"building energy simulations at your fingertips"
On 5/22/2013 8:37 AM, nikolasspiliopoulos wrote:
Hello,
I would like to ask you something about Fanger PPD because it is affected by too many factors,and I am really confused.
Although,the Mean Air Temperature remains almost stable (25C-26C)and PMV factor fluctuates between "0.4-1.09" in the thermal zone,the Fanger starts increasing from about 10% to 35%.
Also,this happens during a hot day in the summer and the windows are closed
Have you any ideas,why this fluctuation happens?
Which Parameter could be responsible for this factor?
thanks for your time!
Nikolas Spiliopoulos
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