| 摘要: |
| 本文对汽车乘员舱制冷工况下的热环境和人体热舒适度进行了实验研究。实验工况：空调模式：制冷、自动模式内循环、设定温度为26 ℃；行驶状态：怠速、路试。实验结果表明：乘员舱气温受空间位置和行驶状态的影响，路试状态下气温均匀程度高于怠速工况；乘员舱湿度分布也受空间位置和行驶状态的影响，路试状态下的前后舱内相对湿度差小于怠速工况；舱内座椅的温度受太阳辐射影响和乘员影响，升温阶段温度略高于气温，降温阶段降温速率远小于气温；PMV模型与等效温度模型在怠速和路试工况下与实际人体热舒适度在时间变化趋势上均基本一致，两模型在怠速状态的预测精度均高于相应路试状态，等效温度模型总体预测精度高于PMV模型。 |
| 关键词: 汽车乘员舱 热环境 人体热舒适度 PMV模型 等效温度模型 |
| DOI： |
| 投稿时间：2019-04-21 修订日期：2019-06-29
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| 基金项目:上海市部分地方院校能力建设专项计划（16060502600）资助 |
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| Cooling Characteristics of Car Cabin Based on Thermal Evaluation Models |
| Wu Qingqing,Liu Jianhua,Zhang Liang,Zhang Jiawen,Jiang Linlin |
| (Refrigeration Technology Institute, University of Shanghai for Science and Technology;Shanghai Key Laboratory of multiphase flow and heat transfer in Power Engineering;Nantong Vocational University) |
| Abstract: |
| An experimental study is conducted to analyze the thermal environment and thermal comfort under the refrigeration conditions of the vehicle cabin. The experimental conditions are as follows. The air conditioning modes are refrigeration with indoor set temperature 26 ℃, automatic mode with internal circulation. The driving states are idle condition and road test. The experimental results show that the vehicle cabin temperature is affected by the spatial position and driving state. The uniformity of the temperature in the road test is higher than that in the idle condition. The humidity distribution of the vehicle cabin is also affected by the spatial position and driving state. The relative humidity difference between the front and rear on the road test is less than that of the idle condition. The temperature of the seat is affected by solar radiation and the occupant. The seat temperature is slightly higher than that of indoor air in the warming period and the cooling rate of the seat is much less than that of indoor air in the cooling period. The predicted mean vote (PMV) and the equivalent temperature models are basically consistent with the change of actual thermal comfort under the idle condition and road test. The prediction accuracy of the two models in the idle condition is higher than that on the corresponding road test. The overall prediction accuracy of the equivalent temperature model is higher than that of the PMV model. |
| Key words: vehicle cabin thermal environment thermal comfort PMV model equivalent temperature model |
