Comparison of human radiation exchange models in outdoor areas |
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| Authors: | Sookuk Park Stanton E Tuller |
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| Institution: | 1. Climate Laboratory, Department of Geography, University of Victoria, P.O. Box?3060, Stn CSC, Victoria, BC, Canada, V8W 3R4
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| Abstract: | Results from the radiation components of seven different human thermal exchange models/methods are compared. These include the Burt, COMFA, MENEX, OUT_SET* and RayMan models, the six-directional method and the new Park and Tuller model employing projected area factors (f p) and effective radiation area factors (f eff) determined from a sample of normal- and over-weight Canadian Caucasian adults. Input data include solar and longwave radiation measured during a clear summer day in southern Ontario. Variations between models came from differences in f p and f eff and different estimates of longwave radiation from the open sky. The ranges between models for absorbed solar, net longwave and net all-wave radiation were 164, 31 and 187?W?m?2, respectively. These differentials between models can be significant in total human thermal exchange. Therefore, proper f p and f eff values should be used to make accurate estimation of radiation on the human body surface. |
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