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Analyse thermodynamique comparative du R1234yf et du R405a comme substituts au R134a dans un système frigorifique à compression de vapeur.

Comparative thermodynamic analysis of R1234yf and R450a as substitutes for R134a in a vapor compression refrigeration system.

Auteurs : DEVECIOGLU A. G., ORUÇ V., ARAS E.

Résumé

In this study, the energy and exergy parameters were theoretically investigated for a vapor compression refrigeration system for which R1234yf and R450A alternative refrigerants with low GWP value were used instead of R134a. The comparison of the energy
parameters was carried out for two different evaporation temperatures (-15°C, -5°C) and a condensing temperature (40°C) under the same operating conditions. According to the calculation results, it can be stated that the considered refrigerants demonstrate similar thermodynamic characteristics. Among the refrigerants, R450A which almost has the same COP values as R134a comes into prominence with 58% lower GWP value compared to R134a.

Documents disponibles

Format PDF

Pages : 12

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Comparative thermodynamic analysis of R1234yf and R450a as substitutes for R134a in a vapor compression refrigeration system.
  • Identifiant de la fiche : 30017968
  • Langues : Anglais
  • Source : CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
  • Date d'édition : 03/05/2016

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