| 摘要: |
| 本文以R134a为制冷剂并采用三换热器设计了热泵汽车空调系统，搭建了热泵系统台架，并在制冷和制热5种工况下进行了性能测试，研究了压缩机转速、风量及环境工况对系统的影响，分析了该系统用于电动汽车的可行性。测试结果表明：﹣20 ℃压缩机转速为3 000 r/min时，系统性能系数COP约为1.5；相同工况下，系统COP随压缩机转速的增加而先增大后减小；相同工况下，系统COP随换热器风量的增加而增加。压缩机采用热泵系统，可以节约电能从而提高电动汽车续航里程。 |
| 关键词: 热泵系统 低温制热 制冷剂 纯电动汽车 |
| DOI： |
| Received:January 19, 2017 |
| 基金项目: |
|
| Performance of Heat Pump Air-conditioning System for Pure Electric Vehicle |
|
Zhang Wenrong, Liu Lina, Qian Cheng, Lou Jun
|
| (Zhenjiang Dun’an Artificial Environment Co., Ltd.) |
| Abstract: |
| In the study, a heat pump system with three heat exchangers was applied on an air-conditioning system of an electric vehicle, in which R134a is the refrigerant. The bench of the heat pump system was constructed, and performance were tested in five conditions with respect to cooling and heating, and the effects of compressor speed, air volume, and ambient conditions on the system performance were examined. The tested performances under various operation conditions were used to analyze the feasibility of the system for electric vehicles. The experimental results indicate that when compressor speed corresponds to 3000 r/min at ﹣20 ℃, (1) the coefficient of performance (COP) of the system is approximately 1.5; (2) with the increases in the compressor speed, the COP initially increases and subsequently decreases; (3) the COP of the system increases with increases in the amount of air of the heat exchanger. Thus, the results reveal that the heat pump system saves electricity and improves the cruising range of vehicle mileage. |
| Key words: heat pump system low temperature heating refrigerant electric vehicle |
