Outdoor thermal comfort acceptable range and campus microclimate in hot-humid region

In order to account for occupants ’ thermal perception under different classification of physio-logically equivalent temperature (PET), thermal comfort range for PET are analyzed via outdoor thermal comfort database in Taiwan, with 1644 sets of measurement and questionnaire data in outdoor spaces in five public places. Furthermore, microclimate is measured 12 times through two years in a university campus for the validation of thermal comfort range. RayMan model are applied to calibrate the climate parameter and environment elements, e.g. shelter, ground surface. Mean radiant temperature (Tmrt) and PET are also calculated by the model. The result of thermal comfort range for PET indicate that 26- 30 °C PET for “neutral ” for Taiwanese out-door occupants, which is much higher than that for Western/middle European occupants, i.e. 18- 23 °C PET. Furthermore, field experiment indicate that sky view factor (SVF) plays an impor-tant role on the thermal environment due to solar radiation is one of the main factor affecting local occupants ’ outdoor thermal sensation. In hot-humid region as Taiwan, lower SVF value, i.e. more shielding as buildings or trees, provide higher frequencies of thermal comfort period. 1