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Document IIF

Modélisation et optimisation pour l’échangeur de chaleur externe d’une pompe à chaleur au CO2 appliquée aux véhicules électriques.

Modeling and optimization for the external heat exchanger of CO2 heat pump applied for electric vehicles.

Numéro : pap. n. 453

Auteurs : CHEN Y., ZOU H., DONG J., et al.

Résumé

CO2 heat pump is a promising system for electric vehicles to improve its heating performance in cold region. The external heat exchanger is a key component acting as evaporator on heating mode and gas cooler on cooling mode, respectively. In this paper, the simulation model of a kind of micro-channel heat exchanger for CO2 heat pump is setup and validated. The maximum errors of heat capacity and refrigerant-side pressure drop between the simulated results and experimental results are within 8.5% and 11.6%, respectively. Based on the simulation model, the performance of this heat exchanger with different structure layout is analyzed under different working conditions. Accordingly, an optimized structure of the micro-channel heat exchanger for CO2 heat pump is presented to get the optimal performance in electric vehicles.

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Pages : 9

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Détails

  • Titre original : Modeling and optimization for the external heat exchanger of CO2 heat pump applied for electric vehicles.
  • Identifiant de la fiche : 30026447
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0453

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