The Study of Thermal Environment during the Movement of Air-conditioned Train

During the movement of air-conditioned train, outdoor temperature is constantly changing with the shift of time and space, and the thermal environment of compartment is affected by periodic temperature variation. In this paper, we simulated outdoors thermal environment in the period of the movement of air-conditioned train, and obtained outdoor temperature wave, sol-air temperature waves and temperature waves of interior wall for all orientations of compartment. As the effect of periodic temperature variation, it leads to the variety of quantity of heat transmitted from enclosure to compartment. By calculated the attenuation and delay for temperature wave, the fluctuation of quantity of heat transmitted from enclosure is obtained. It will establish theoretical basis for the study of thermal comfort about compartment and real time regulation about air-conditioned unit.