Impact of fans on human thermal comfort in hot summer and cold winter zone in summer

Studies the indoor thermal environment of residential buildings in Wuhan, Nanjing and Lujiang by the questionnaire survey and field test, and obtains 364 sets of indoor environment and human thermal response data in the natural environment. Evaluates the influence of fans on human thermal comfort through the analysis of neutral temperature and the acceptable temperature upper limit by 80% of the respondents. The results show that the neutral temperature is 26.6 ℃ and the acceptable temperature upper limit by 80% of the respondents is 29.5 ℃ without fans. However, the neutral temperature is 27.3 ℃ and the upper limit is 30.7 ℃ when the fans are used.