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Document IIF

Cycle frigorifique indirect avec les fonctionnalités d'une pompe à chaleur pour des véhicules hybrides et électriques.

Indirect refrigeration cycle with heat pump functionality for hybrid and electric vehicles.

Numéro : pap. 1122

Auteurs : RABL B., STEINER A., WALTENBERGER M., et al.

Résumé

The air conditioning system of a passenger car causes significant power consumption. For Hybrid and Electric Vehicles the energy consumption for heating of the cabin at low ambient temperatures in particular plays an important role, considering that there is only little or no waste heat available. Electric (resistance) heating of the cabin air drastically reduces the driving range. Additionally, in case of electric vehicles there may be a demand for cooling of the traction battery at high ambient temperatures. In contrary, the waste heat of the power electronics could be used for cabin heating at low ambient temperatures if its temperature level is raised by means of a heat pump. This manuscript illustrates simulation results as well as test bench measurements of an indirect refrigeration system with heat pump functionality. The proposed system may considerably lower the energy consumption for air conditioning of the passenger cabin and offers ways to incorporate additional heat sinks as well as sources in a simple manner. The system aims for higher efficiencies in heating and dehumidification mode compared to conventional systems and should facilitate the vehicle’s overall thermal management. The natural refrigerant R744 is used as working fluid because of its negligible global warming potential (compared to other refrigerants) and favourable thermodynamic properties for heat pump applications.

Documents disponibles

Format PDF

Pages : 9 p.

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 : Indirect refrigeration cycle with heat pump functionality for hybrid and electric vehicles.
  • Identifiant de la fiche : 30019092
  • Langues : Anglais
  • Source : 12th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
  • Date d'édition : 21/08/2016
  • DOI : http://dx.doi.org/10.18462/iir.gl.2016.1122

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