Document IIF

Nouveau frigorigène R-474A pour les applications de pompes à chaleur automobiles.

Novel refrigerant R-474A for automotive heat pump applications.

Résumé

In this paper we introduce novel refrigerant R-474A, a zeotropic blend of R-1234yf and R-1132(E) perfectly suited for A/C and heat pump applications in automotive across the whole temperature spectrum. R-1132(E) is a novel component with a vapor pressure of 1,666 kPa at 25degC and a GWP of 0.0056. R-474A presents a boiling point of -43 degC and a critical temperature of 87degC, with a Global Warming Potential (GWP) below 1. Real-life performance data demonstrate an increase of up to 40% in cooling capacity versus R-1234yf on existing MAC heat pump systems at drop-in. This additional capacity can be utilized to meet the increasing thermal management demands of BEVs (supercharging, cabin heating etc) and/or to downsize the compressor and reduce
compressor RPM. Furthermore, additional improvements can be achieved by adapting pressure settings of components.

Documents disponibles

Format PDF

Pages : 8 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 : Novel refrigerant R-474A for automotive heat pump applications.
  • Identifiant de la fiche : 30031014
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : 3rd IIR conference on HFO Refrigerants and low GWP Blends. Shanghai, China.
  • Date d'édition : 05/04/2023
  • DOI : http://dx.doi.org/10.18462/iir.HFO2023.0004

Liens


Voir d'autres communications du même compte rendu (28)
Voir le compte rendu de la conférence