Simulation and Experimental Study on the Influence of Environmental Parameters on Human Thermal Comfort in Sports

Compared with daily activities,the thermal comfort in sports has significantly distinction.The specific characteristics as follows:the larger metabolic rate,the smaller clothing thermal resistance,the larger perspiration,the more complex radiation environment and the shortness of breath.Therefore,the evaluation method based on the traditional Fanger thermal comfort model is difficult to accurately predict the thermal comfort in sports.In this paper,the coverage rate of clothes is proposed and some appropriate amendments in radiation and surface diffusion model based on Fanger model are improved.Resultsof two different models are compared and discussed.In addition,a series of experiments on sports are conducted with the environmental test equipment and questionnaire survey.Meanwhile,the accuracy analysis to Fanger's model and the improved model is presented.Resultsshow that the new model is more reasonable and has the good agreements with experiments.