瞬态环境轨道交通客车乘员人体热舒适分析

Thermal Comfort Analysis of Rail Transit Passengers in Transient Environment

轨道交通客车乘员人体热舒适性不良。通过实验对比数值模拟人体温度云图,采用Berkeley瞬态人体热舒适评价模型对不同送风温度和不同送风量工况下对地铁车厢乘员局部热感觉、热舒适和整体热感觉、热舒适进行了研究。结果表明:16℃工况下相对于24℃工况下,整体热感觉降低了30.66%,整体热舒适升高了6.32%。8000 m^(3)/h的进风量相较于4000 m^(3)/h整体热感觉下降了21.14%,整体热舒适上升了19.92%。降低进口温度提高进口风量均可降低整体热感觉,提高整体热舒适。

The thermal comfort of rail transit passengers is poor.By comparing the numerical simulation of human body temperature nephogram by experiment,Berkeley transient human thermal comfort evaluation model is used to study the local thermal comfort,thermal comfort and overall thermal comfort of subway car passengers under different air supply temperatures and air supply conditions.The results show that the overall thermal feeling is reduced by 30.66%and the overall thermal comfort is increased by 6.32%at 16℃compared with 24℃.Compared with 4000 m^(3)/h,the overall thermal feeling of 8000 m^(3)/h decreased by 21.14%,and the overall thermal comfort increased by 19.92%.Reducing the inlet temperature and increasing the inlet air volume can reduce the overall thermal feeling and improve the overall thermal comfort.