Journal of Jilin University(Engineering and Technology Edition) ›› 2021, Vol. 51 ›› Issue (6): 1943-1952.doi: 10.13229/j.cnki.jdxbgxb20200656

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Performance analysis of electric vehicle heat pump air conditioning system

Ming LI1(),Qing-feng XUE2,Ke-xin ZHANG1,Ran LYU1,Chang-hua WEI3   

  1. 1.Sate Key Laboratory of Automotive Simulation and Control，Jilin University，Changchun 130022，China
    2.General Institute of FAW Vehicle Development Department，China Faw Group Co. ，Ltd. ，Changchun 130013，China
    3.Jiangsu Chaoli Electric Manufacture Co. ，Ltd. ，Zhenjiang 212321，China
  • Received:2020-08-27 Online:2021-11-01 Published:2021-11-15

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Abstract:

A heat pump air conditioning system performance simulation platform for electric vehicle is designed and built, which can be used to analyze the system performance in different working modes. The experimental results are used to verify the simulation model accuracy. The results show that the maximum error between experiment and simulation data of compressor power, heat exchange rate and system Coefficient of Performance (COP) is 4%~10.09% in different working modes. The compressor power gradually increases, the heat exchange rate gradually increases and the system COP gradually decreases with the increase of compressor speed in the cooling mode and heating mode. The influence of inlet air flow rate, inlet air temperature, inlet air mode and other factors of condenser and evaporator on the system performance in the cooling or heating mode are also researched in the paper. The results indicate that high air flow rate will improve the cooling capacity, and the effect of inlet air temperature is dependent on working condition, while the partial inlet air mode can save energy in heating mode.

Key words: thermal engineering, electric vehicles, heat pump air conditioning, simulation analysis

CLC Number: 

  • U463

Fig.1

Heat pump air conditioning systemfor electric vehicle"

Fig.2

Simulation calculation process"

Fig.3

Comparison of experimental and simulation results of cooling mode"

Fig.4

Comparison of experimental and simulation results of heating mode"

Fig.5

Influence of inlet air volume of inside evaporator on system performance"

Fig.6

Influence of wind speed of outside condenser on system performance"

Fig.7

Influence of inlet air temperature of inside evaporator on system performance"

Fig.8

Influence of inlet air temperature of outside condenser on system performance"

Fig.9

Influence of ambient temperature on system performance"

Fig.10

Influence of inlet air volume of inside condenser on system performance"

Fig.11

Influence of inside condenser inlet air mode on system performance"

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