Partager

Document IIF

Recherche expérimentale sur la stratégie de régulation de la pompe à chaleur d'un véhicule électrique avec injection de frigorigène à basse température.

Experimental investigation on control strategy of electric vehicle heat pump with refrigerant injection at low temperature.

Auteurs : XU Q., WU J., GUO Z., XU G., CHEN Y., YANG H., XUE X.

Type d'article : Article de la RIF

Résumé

A heat pump cycle with refrigerant injection is one of the effective means to enhance the heating performance of electric vehicles in low temperature climate. The control strategy is very critical for the application of refrigerant injection technology in electric vehicles. In this paper, the variation of cabin load demand with ambient temperature is first presented for electric vehicles. Secondly, a test bench of heat pump system with refrigerant injection is built to compare the system heating performance under different control strategies. Considering the compressor discharge temperature and the load demand, the applicable temperature range under different control strategies is determined. The experimental results show that the control strategy of the main branch with slightly wet can effectively reduce the compressor discharge temperature and improve the heating performance of the system. The compressor discharge temperature can be reduced by up to 23°C with above control strategy. The system heating capacity and COP can be increased by up to 5.7% and 4.7%. Vapor injection cycle can meet the demand at the ambient temperature above -15°C. The two-phase injection cycle further extends the temperature range of the system operation at low temperature, and the lowest temperature can reach -22°C.

Documents disponibles

Format PDF

Pages : 40-51

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental investigation on control strategy of electric vehicle heat pump with refrigerant injection at low temperature.
  • Identifiant de la fiche : 30029612
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 138
  • Date d'édition : 06/2022
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2022.03.024
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres articles du même numéro (20)
Voir la source

Indexation