Experimental performance of a vapor-injection CO2 heat pump system for electric vehicles in -30 °C to 50 °C range

Tianyang Yang,Huiming Zou,Mingsheng Tang,Changqing Tian,Yuying Yan

Applied Thermal Engineering（2022）

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摘要

•A vapor-injection transcritical CO2 heat pump for electric vehicles was established.•The system performance widely from −30 °C to 50 °C was experimentally studied.•The refrigerant flow distribution characteristics were obtained.•Mathematical model of injection ratio of the twin rotary compressor was established.

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关键词

CO2 heat pump,Vapor injection,Electric vehicles,−30 °C to 50 °C,Refrigerant flow distribution

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