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Performance du mélange azéotropique virtuellement non inflammable HFO1234yf/HFC134a pour les applications du HFC134a.

Performance of virtually non-flammable azeotropic HFO1234yf/HFC134a mixture for HFC134a applications.

Auteurs : LEE Y., KANG D. G., JUNG D.

Type d'article : Article, Article de la RIF

Résumé

In this study, ‘drop-in’ performance of R134a, R1234yf and R1234yf/R134a mixture at three compositions of 5, 10, and 15% R134a is measured in a heat pump bench tester under summer and winter conditions. Test results show that the COP, capacity, discharge temperature of R1234yf and R1234yf/R134a mixture are similar to those of R134a. For R1234yf/R134a mixture, flammability decreases as more R134a is added and at compositions of more than 10% of R134a, the mixture becomes non-flammable. The amount of charge for R1234yf and R1234yf/R134a mixture is up to 11% lower than that of R134a. Since R1234yf/R134a mixture with 10-11% R134a is virtually non-flammable and azeotropic and has no ODP and GWP of less than 150 meeting the requirement of European mobile air-conditioner directive, it can be used as an environmentally friendly solution for various R134a applications including mobile air-conditioners with minor modifications.

Documents disponibles

Format PDF

Pages : 1203-1207

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 : Performance of virtually non-flammable azeotropic HFO1234yf/HFC134a mixture for HFC134a applications.
  • Identifiant de la fiche : 30008072
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 4
  • Date d'édition : 06/2013

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