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Comparison of human radiation exchange models in outdoor areas

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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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Correspondence to Sookuk Park.

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Park, S., Tuller, S.E. Comparison of human radiation exchange models in outdoor areas. Theor Appl Climatol 105, 357–370 (2011). https://doi.org/10.1007/s00704-010-0388-2

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