Development and performance evaluation of CO2 automotive heat pump system applied to -20°C environment.

[In Chinese. / En chinois.]

Author(s) : WANG D., ZHANG K., YU B., et al.

Type of article: Article


Automotive heat pump systems with the R134a refrigerant cannot provide sufficient heating capacity and even stop working in a low ambient temperature. Developing a transcritical CO2 automotive heat pump system would be an effective method to solve this problem. This study theoretically analyzed the impacts of key factors on the performance of a CO2 heat pump system, and experimentally investigated the developed heat pump in a -20°C environment.

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Pages: 14-21


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