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Experimental investigation of thermal comfort in a passenger car under driving conditions

机译：驾驶条件下乘用车热舒适性的实验研究

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摘要

It is essential to quickly provide an acceptable comfort level in a car by automobile manufacturers during short commutes. Many previous thermal comfort tests for passenger cars were performed in laboratories or under parking conditions, where the thermo-fluid conditions and the driver's perception of thermal comfort may not have been the same as those under outdoor driving conditions. This study conducted tests under outdoor driving conditions, measuring the outside weather conditions, the air and surface temperatures inside a car, and the skin temperatures and thermal sensation votes of the driver under summer conditions. The results show that the air and surface temperatures in the car were non-uniform and decreased rapidly in the first 15 min after the airconditioning system was switched on. In addition, the thermal comfort conditions in the car did not reach a steady state after 2 h. Thus, a thermal comfort study in a car should be conducted under transient conditions. Reasonably good correlation existed between the mean skin temperature and mean thermal sensation. This study also found that the thermal sensation of the driver under outdoor driving conditions was different from that when the vehicle was parked.
机译：汽车制造商在短途通勤期间必须迅速为汽车提供可接受的舒适度。先前许多用于乘用车的热舒适性测试是在实验室或停车条件下进行的，在这些条件下，热流体条件和驾驶员对热舒适性的感觉可能与室外驾驶条件下的不一样。这项研究在室外驾驶条件下进行了测试，测量了外部天气条件，车内空气和地面温度以及夏季条件下驾驶员的皮肤温度和热感票。结果表明，在打开空调系统后的最初15分钟内，汽车中的空气和表面温度不均匀且迅速下降。另外，汽车中的热舒适条件在2小时后没有达到稳定状态。因此，应该在瞬态条件下进行汽车的热舒适性研究。平均皮肤温度和平均热感之间存在合理的良好相关性。这项研究还发现，驾驶员在室外驾驶条件下的热感觉与停车时的感觉不同。

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