废热回收型纯电动汽车热泵系统试验研究  

Experimental Research on Waste-Heat Recovery Heat Pump System in Electric Vehicles

作　　者：李萍 谷波[1] 缪梦华 LI Ping;GU Bo;MIAO Menghua(Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China)

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200240

出　　处：《上海交通大学学报》2019年第4期468-472,共5页Journal of Shanghai Jiaotong University

基　　金：国家科技支撑计划资助项目(2013BAG03B01)

摘　　要：针对纯电动汽车设计了一套带有废热回收的热泵空调系统,采用2个分回路吸收电池和电机产生的废热,分析了电池和电机废热量产生规律以及对废热回收系统进行了整车试验.结果表明:纯电动汽车在车速变化时,电池散热量迅速增加,即废热增加;当废热回收热泵系统在2℃的工况下运行时,换热量最大可增加至3 797 W,能效比范围为1.82～2.43,增加的废热能满足制热要求;当温度降到-7℃时,换热量最大可增至2 407 W,能效比范围为1.56～2.63,回风温度可达13.2℃,但仍需提供额外热源才能满足制热要求.A set of waste-heat recovery heat pump system is designed for electric vehicles, which includes two parts absorbing the waste heat from battery and motor. The generation rule of waste heat from battery and motor is analyzed and the waste heat recovery heat pump system is tested. The results showed that with the speed change of electric vehicle, battery cooling is increasing rapidly, which increases the waste heat;when waste-heat recovery heat pump system operates at 2℃, maximum heat transfer can be increased to 3797W, the range of coefficient of performance (COP) is 1.82-2.43, and the increase of waste heat can meet the heating requirements;when the temperature drops to -7℃, maximum heat transfer can be increased to 2407W, the range of COP is 1.56-2.63, and the air temperature is 13.2℃, but the system still needs to provide additional heat source to meet the heating requirements.

关 键 词：纯电动汽车 热泵系统 废热回收 

分 类 号：TK123[动力工程及工程热物理—工程热物理]