地铁车厢热舒适评价时乘客状态及参数的确定

Determination of passenger status and parameters in thermal comfort evaluation of metro cars

针对地铁车厢热环境特点和乘客热舒适现状,提出应从热舒适角度出发进行地铁车厢环境控制.在问卷调查的基础上,对热舒适评价中表征乘客状态的2个参数进行了分析,提出可以根据载客量确定车厢内乘客平均新陈代谢率,根据室外体感温度确定乘客平均服装热阻,并给出了相应的计算方法.该方法反映了地铁车厢中乘客状态动态变化的诱因及特征,通过PMV模拟计算表明,计算结果更接近乘客的真实热感觉.

Aiming at the thermal environment characteristics of metro cars and the thermal comfort of passengers,it is proposed that the environmental control of subway compartments should be carried out from the point of thermal comfort.Based on the questionnaire,the paper analyzes the two parameters on passenger status in thermal comfort evaluation,and it puts forward that the passenger＇s average metabolic rate can be determined by the passenger capacity,and the average clothing thermal resistance is given by the outdoor body temperature.And it provides a corresponding calculation method which reflects the dynamic changes of passengers in the subway.The simulation results are closer to the real thermal sensation of the passengers.