制冷剂
空调
热泵
制冷
空气源热泵
汽车工程
电动汽车
混合热
环境科学
性能系数
等熵过程
工艺工程
核工程
热力学
工程类
机械工程
功率(物理)
热交换器
物理
作者
Yue Huang,Xiuchun Wu,Jiahao Jing
标识
DOI:10.1016/j.egyr.2022.05.112
摘要
Based on the selection of refrigerant replacement for electric vehicle heat pump air-conditioning system, the ideal refrigerant replacement R290 is chosen as the working medium of the system. The feasibility and superiority of the electric vehicle heat pump air-conditioning system with water loop based on R290 refrigerant are verified by setting up a performance test platform. The experimental results show that the high temperature (55 °C) refrigeration capacity of the system is 5.77% higher than that of CO2 system, the COP of the system is 1.05 higher, and the isentropic efficiency of the system is more than 80% in the low temperature (- 20 °C) heating mode, the system has better and stable heating performance. This paper is beneficial to the further research and application of environment-friendly refrigerants, and further promote the development and research of heat pump air-conditioning system of efficiency electric vehicle.
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