Comparison <br><br><br>of the applicability of PET and UTCI in different seasons in Shanghai In order to analyze the differences in applicability of outdoor thermal comfort evaluation indicators under different environmental conditions, the Xiaolujiazui area of Shanghai was used as an example. The environmental parameters and human thermal sensation of 7 local streets in each season were voted It was obtained through on-site measurement and questionnaire survey. <br><br>A comparative analysis of the correlation between physiologically equivalent temperature (PET), universal thermal climate index (UTCI) and thermal sensation voting results. <br><br>It was found that the UTCI and thermal sensation voting results were more consistent when the daily average temperature reached 20 ℃. <br>Through the comparison and analysis of the calculation methods of PET and UTCI, it is pointed out that the weights of different environmental parameters (temperature, relative humidity, wind speed, average radiation temperature) are set differently in the calculation of PET and UTCI in different seasons, and they are the dominant factor that affects the human body's thermal perception. The environmental parameters are different. <br><br>Finally, it is concluded that the outdoor thermal comfort results calculated by UTCI in summer are more consistent with subjective feelings, and PET is more consistent in winter. <br><br>[Keywords] outdoor space; seasonal differences; thermal sensation voting; outdoor thermal comfort index; Shanghai
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