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Propriétés pvTz du système binaire R1132a + R1234yf mesurées dans les régions diphasiques et de vapeur surchauffée.

pvTz properties of R1132a + R1234yf binary system measured in the two-phase and superheated vapor regions.

Numéro : 0856

Auteurs : TOMASSETTI S., DI NICOLA G.

Résumé

Recently, 1,1-difluoroethene (R1132a) has been identified as a promising low global warming potential (GWP) component for mixtures suitable for ultra-low temperature (ULT) refrigeration systems. In this respect, the mixture containing R1132a and 2,3,3,3-tetrafluoropropene (R1234yf) can be considered a potential working fluid for ULT applications.
This work presents pvTz properties for R1132a + R1234yf binary system measured in the two-phase and superheated vapor regions. The measurements of this binary system were carried out along various isochores for temperatures from 233 K to 303 K for different R1132a mole fractions using an isochoric apparatus. The experimental two-phase pvTz data were used to assess the vapor-liquid equilibrium properties of R1132a + R1234yf binary system through the flash method with different equations of state. The vapor-phase measurements were correlated with various models. A good agreement between the experimental and calculated properties was found.

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Pages : 11 p.

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Détails

  • Titre original : pvTz properties of R1132a + R1234yf binary system measured in the two-phase and superheated vapor regions.
  • Identifiant de la fiche : 30031675
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0856

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