空调列车运行时围护结构传入热量的研究

Study of heat transfer quantities through enclosure of train compartment

空调列车运行期间,车厢外部热环境参数随时间和空间的变化而导致车厢围护结构传入热量的波动.以T97次和T98次空调列车为例,通过计算一个设计日内车厢各朝向围护结构对外界温度波的衰减和延迟,得到列车运行期间各朝向围护结构传热量的波动规律,为今后列车车厢内热舒适性研究及列车空调机组实时运行调节提供了参考.图7,表2,参8.

Exterior thermal parameters varying with time and space result in the fluctuation of heat transfer quantities through enclosure of train compartment. Train T97 and train T98 were taken as example, the attenuation and delay for temperature during a design day were calculated,the rule of heat transfer quantities through enclosure was obtained. It offered reterence for tire study of thermal eomfort and real time regulation about air-conditioned unit.7figs., 2tabs,, 8refs.