Thermal Science (Jan 2021)

Experimental study on performance of medium-pressure air-supply heat pump air conditioning system for pure electic bus

  • Li Haijun,
  • Su Zhiyong,
  • Liu Enhai,
  • Shi Shuanling,
  • Zhang Zhonglai,
  • Yu Zhuang,
  • Han Chuang,
  • Bai Junqin,
  • Fan Yuehua,
  • Fan Ya,
  • Wang Chunyan

DOI
https://doi.org/10.2298/TSCI191011119L
Journal volume & issue
Vol. 25, no. 3 Part B
pp. 2311 – 2318

Abstract

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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.

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