Open AccessExperimental study on performance of medium-pressure air-supply heat pump air conditioning system for pure electic bus
Author(s) -
Haijun Li,
Zhiyong Su,
Enhai Liu,
Shuanling Shi,
Zhonglai Zhang,
Yu Zhuang,
Chuang Han,
Junqin Bai,
Ya Ju Fan,
Fan Yang,
Chunyan Wang
Publication year - 2021
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci191011119l
Subject(s) - economizer , gas compressor , air conditioning , heat pump , automotive engineering , environmental science , nuclear engineering , air source heat pumps , discharge pressure , materials science , mechanical engineering , engineering , heat exchanger , refrigerant
In order to solve the problem of serious attenuation of the performance of heat pump air conditioning system for pure electric bus at high temperature in summer and at low temperature in winter, a heat pump air conditioning system for medium-pressure air-supply pure electric bus with economizer is developed. The performance of the system working at from +50? to ?20? ambient temperature and at different compressor speed is studied. The results show that the exhaust temperature of the compressor can be reduced greatly.