空调硬卧车内人体热舒适性研究

Study of Thermal Comfort in Air-conditioned Hard Sleeper Cars

针对目前空调硬卧车内气流分布不均匀,不同铺位的乘客对车厢内的热舒适感差别较大这一现状,采用计算流体动力学对空调硬卧车内流场和温度场进行了数值模拟,研究了空调硬卧车内空气流动速度和温度分布规律及热舒适评价指标PMV和人体吹风感指标PD分布状况。研究结果对于改变目前车厢内上、中、下铺气流分布不均的现状,改善车厢内人体热舒适环境提供了理论依据。

In view of the asymmetry of air distribution in air-conditioned hard sleeper cars and the fact that passengers in different berths feel quite different about thermal comfort, the air fluid flow and heat transfer in air-conditioned hard sleeper cars are simulated numerically by computational fluid dynamics. The airflow field and temperature field and thermal comfort index PMV-PD are investigated. The results have theoretical significance to optimizing design of air organization and improving the thermal comfort environment in sleeper cars.