电动汽车间接热泵系统的实验研究  

Experimental Study on Indirect Heat Pump System of Electric Vehicles

作　　者：王敏弛 聂磊 赵耀[1] 陈道川 代彦军[1] WANG Minchi;NIE Lei;ZHAO Yao;CHEN Daochuan;DAI Yanjun(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：《制冷技术》2022年第2期7-11,24,共6页Chinese Journal of Refrigeration Technology

摘　　要：针对电动汽车传统电加热采暖方式效率低、甚至难以运行的问题,本文研究了一种新型间接换热热泵系统。系统采用液-液换热器间接换热方式代替风冷换热器直接换热方式,在提升系统运行稳定性的同时保证较高的系统性能系数(COP)。系统低温环境工况测试结果表明:在环境温度为-7℃时,系统制热量可达2.18 kW,COP可达2.62,相比于直接换热热泵系统,COP提升近20%;-10℃时,系统最高换热量可达3.36 kW;-18℃时,舱内送风温度最高可达19.4℃,基本满足纯电动汽车在冬季环境工况下的制热需求。An indirect heat exchange heat pump system is designed to solve the problem of low efficiency and hard operation of the traditional heat pump system under low temperature conditions for electric vehicles.A liquid-liquid heat exchanger is applied to replace the air-cooled heat exchanger,which improved the system stability and coefficient of performance(COP).The test results of the system under low temperature show that,the heating capacity of the system can reach 2.18 kW while COP can reach 2.62 when the ambient temperature is -7℃.COP increases nearly 20% compared with the air-cooled heat pump system.The maximum heat exchange capacity of the system can reach 3.36 kW at -10℃,and the air temperature can reach 19.4℃ when ambient temperature is -18℃.The air temperature level can meet the heating needs of electric vehicle under winter environmental condition.

关 键 词：电动汽车 间接热泵系统 实验研究 性能系数 

分 类 号：TQ051.5[化学工程] U469.72[机械工程—车辆工程]