Abstract
In a car under summer solar radiation, the surface and air temperatures become very high, for example the air temperature around driver’s seat was over 65 degree C. Thus, a ventilation system is one of the important methods for keeping comfortable thermal environment. In this study, in order to clarify the effect of temperature reduction in a car cabin by changing ventilation methods, the experiment of measuring temperature and the numerical simulation in a car cabin were conducted. In case of middle or high flow rate (100～150 m3/h), it was found that the effects of temperature reduction on the driver’s seat with FOOT mode ventilation and around the driver’s seat with FACE mode ventilation were remarkable.
