Human thermal model for evaluating a risk of heat disorders considering outdoor long-wave radiation and wetness of clothing

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Vertical distribution(50, 100, 150cm) of meteorological factors was measured on the ground or grass. Air and environmental globe temperatures in 50cm were higher than those in 150cm. Because air temperature was almost equal to environmental globe temperature, higher environmental globe temperature in 50cm was strongly affected by air temperature. In order to evaluate the effect of normal cotton and superior sweat-absorbent and quick-drying materials on human physiological and psychological responses, experiment using human subjects was carried out. A weight increase of the quick-drying clothing was significantly larger than that of cotton clothing. However, no difference in mean skin temperature or comfort sensation between these two clothing was observed.