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Performance analysis of a thermal management system for electric vehicles.

Number: 0404

Author(s) : ZHANG L., HIGASHI T., SAIKAWA M.

Summary

A thermal management system for electric vehicles is proposed, comprising one refrigerant circuit and two coolant circuits. The refrigerant circuit for a heat pump provides conditioned air for cabins. One of the coolant circuits is used to thermally manage motors and invertors and another is used for batteries. The system can cool batteries using the evaporation latent heat of the water as a by‐product of the refrigerant circuit during cabin  cooling  processes.  Calculation  results  show  that  compared  to  a  system  of  cooling  both  cabin  and  battery via heat pumps, the electric power consumption of the proposed system declined by about  20% under an ambient air temperature of 25 to 45°C. A desiccant‐coated heat and mass exchanger is adopted to save electrical energy during the cabin heating modes. Furthermore, the heat generated by batteries, motors and invertors can be recovered as a supplemental heat source of the heat pump.

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Pages: 12

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Details

  • Original title: Performance analysis of a thermal management system for electric vehicles.
  • Record ID : 30031512
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0404

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