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Optimization and cooling performance analysis of CO2 heat pump air conditioning system for electric vehicle
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Jiangfeng Li1, 2, Shuaiqi Li1, Wenji Song1, Ziping Feng1, 3
Renewable Energy Resources | 2024, 42(5) : 611 - 619
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Renewable Energy Resources | 2024, 42(5): 611-619
Optimization and cooling performance analysis of CO2 heat pump air conditioning system for electric vehicle
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Jiangfeng Li1, 2, Shuaiqi Li1, Wenji Song1, Ziping Feng1, 3
Affiliations
  • 1 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 China
  • 2 University of Chinese Academy of Sciences Beijing 100049 China
  • 3 Zibo Energy Research Institute Zibo 255000 China
Published: 2024-05-20
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In order to improve the efficiency of CO2 cycle system for electric vehicle, a transcritical CO2 system with regenerator and gas injection in the middle was constructed. The effects of Tgo, Pg, Pm, B, AT on EER, Qe and To were studied by simulation. The results show that Pgo and Pm,opt makes the EER reach the maximum value, and the relationship between the Popt and the Tgo. An increase in To can degrade system performance, The performance of the system can be improved by increasing the amount of gas injection in the middle and the superheat of the regenerator, which can increase the EER by 15.64% and 6.07%, respectively, and the cooling capacity by 27.88% and 4.78%. The increase of the superheat of the regenerator will lead to the increase of the discharge temperature of the compressor, the gas injection in the middle can reduce the discharge temperature of the compressor, when the discharge temperature of the compressor is limited, the optimization ability of the regenerator to EER and cooling capacity can be increased by 203% and 173.87%. Compared with the basic transcritical CO2 system, the optimized system can increase the EER and cooling capacity by 18.38% and 35.03%.

heat pump air conditioning  /  gas injection in the middle  /  regenerator  /  trans-critical CO2 cycle
Jiangfeng Li, Shuaiqi Li, Wenji Song, Ziping Feng. Optimization and cooling performance analysis of CO2 heat pump air conditioning system for electric vehicle[J]. Renewable Energy Resources, 2024 , 42 (5) : 611 -619 .
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  • Receive Date：2023-03-02
  • Online Date：2025-07-22
  • Published：2024-05-20
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  • Received：2023-03-02
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Affiliations
    1 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences Guangzhou 510640 China
    2 University of Chinese Academy of Sciences Beijing 100049 China
    3 Zibo Energy Research Institute Zibo 255000 China
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表12种不同金属材料的力学参数
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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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