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Propriétés thermodynamiques du HFO-1234yf (2,3,3,3-tétrafluoropropène).

Thermodynamic properties of HFO-1234yf (2,3,3,3-tetrafluoropropene).

Auteurs : TANAKA K., HIGASHI Y.

Type d'article : Article, Article de la RIF

Résumé

Measurements of the thermodynamic properties of HFO-1234yf were conducted. The critical temperature, critical density, and critical pressure PC, were measured by the visual observation of the meniscus disappearance, and were determined to be 367.85 plus or minus 0.01 K, 478 plus or minus 3 kg/m3, and 3382 plus or minus 3 kPa, respectively. Vapour pressures were measured by a batch-type calorimeter with a metal-bellows in the temperature range from 310 to 360 K and correlated by the Wagner-type equation. Surface tensions were measured by the differential capillary-rise method in the temperature range from 273 to 340 K and correlated by the Van der Waals type equation. The acentric factor was determined to be 0.280 with the vapour pressure correlation. Based on the critical parameters and acentric factor, saturated vapour and liquid densities were estimated by the Peng-Robinson equation and the Hankinson-Thomson equation, respectively. The heat of vaporization was also calculated from the Clausius-Clapeyron equation.

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Pages : pp. 474-479

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Détails

  • Titre original : Thermodynamic properties of HFO-1234yf (2,3,3,3-tetrafluoropropene).
  • Identifiant de la fiche : 2010-0037
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 33 - n. 3
  • Date d'édition : 05/2010

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