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Propriétés thermodynamiques du trans-1,3,3,3-tétrafluoropropène [R1234ze(E)] : mesures de la masse volumique et de la pression de vapeur et équation générale d'état.

Thermodynamic properties of trans-1,3,3,3-tetrafluoropropene [R1234ze(E)]: measurements of density and vapor pressure and a comprehensive equation of state.

Numéro : pap. n. R12, 2189

Auteurs : MCLINDEN M., THOL M., LEMMON E. W.

Résumé

The thermodynamic properties of a hydrofluoro-olefin (HFO) refrigerant are presented. The p-?-T behavior of highpurity (99.993 %) R1234ze(E) was measured from 240 K to 420 K with pressures to 15 MPa by use of a two-sinker densimeter. The measurements extend from low-density vapor to compressed-liquid states. Vapor pressures were measured in the densimeter from 261 K to 380 K. The equation of state (EOS) for R1234ze(E) is expressed in terms of the Helmholtz energy as a function of temperature and density, and it is valid over the entire fluid surface. The formulation can be used for the calculation of all thermodynamic properties. Comparisons to experimental data are given to establish the accuracy of the EOS.

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Format PDF

Pages : 8 p.

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 : Thermodynamic properties of trans-1,3,3,3-tetrafluoropropene [R1234ze(E)]: measurements of density and vapor pressure and a comprehensive equation of state.
  • Identifiant de la fiche : 30000760
  • Langues : Anglais
  • Source : 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 12/07/2010

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