Psychological and physiological response in vehicle under summer condition

The main purpose of this study is to analyze the effective body part to cool down the whole body under transient and nonuniform environment. A subjective test using car cabin was held to compare human responses. For the first hour, a car was placed in a chamber which created summer condition. Then two subjects were asked to ride in the vehicle, turn on the air conditioner, and vote their thermal sensation and comfort every 2 minutes. Their skin temperatures were measured during the test. As the result, the chest was the most effective body parts to cool. And there was a clear relationship between its skin temperature and thermal feelings. These data will be used as feedback to establish an index of such thermal environment.