TY - JOUR
TI - Experimental research on refrigeration performance of air conditioning system of pure electric passenger cars with economizer
AU - Yang Fengye
AU - Zhao Pengfei
AU - Li Haijun
AU - Wang Chunyan
AU - Su Zhiyong
AU - Zhou Guanghui
JN - Thermal Science
PY - 2022
VL - 26
IS - 3
SP - 2599
EP - 2605
PT - Article
AB - Aiming at solving the problems of the high compressor discharge temperature,  the high discharge pressure, the insufficient cooling capacity, and the  reduced system efficiency in the air-conditioning system of pure electric  passenger cars in the summer high temperature environment, this paper  develops a low pressure economizer using the principle of the  quasi-two-stage compression cycle. The heat pump air conditioning system of  the air-supplemented pure electric passenger car is set up to study its  refrigeration performance. The results show that in a high environment  temperature of 50°C, compared with the non-supplemented system, the  discharge temperature in the low pressure supplemental gas system drops by  13.54°C, the refrigeration capacity reduces by 2.0%, the compressor power  drops by 3.4%, and the refrigeration coefficient increases by 1.4%.