Influence of microclimate factors on human thermal comfort under high temperature and high radiation environment

The thermal environment problem faced by the operation process under high temperature and radiation environment is becoming increasingly prominent. To explore the influence of microclimate factors on human thermal comfort (HTC) under high temperature and high radiation environment, orthogonal experiment method is selected in the paper to study the influence of temperature, humidity, wind speed and radiation intensity on human mean skin temperature (MST) and human thermal comfort. The findings indicate that when exposed to high temperatures and radiation, the average thermal comfort rating of the human body falls outside the range of thermal neutrality. The ambient temperature exerts the most pronounced influence on both the average skin temperature and HTC among all the experimental factors, especially on HTC. The radiation intensity exerts a substantial impact on HTC, while it does not exert a significant influence on MST. The effects of relative humidity and wind speed on MST and HTC are not significant. Besides, the relationship between HTC and MST exhibits a strong linear fitting pattern.