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Mesure de la densité et de la pression du liquide saturé pour les mélanges FC134a/HC290 à l'aide d'un densimètre compact à simple contrepoids.

Saturated liquid density and pressure measurements for HFC134a?+?HC290 by a compact single-sinker densimeter.

Auteurs : LI H., DONG X., ZHANG H., et al.

Type d'article : Article, Article de la RIF

Résumé

Saturated liquid densities and bubble point pressures for binary mixtures of 1,1,1,2-tetrafluoroethane (HFC134a)?+?propane (HC290) were measured using a compact single-sinker densimeter. The temperature range was from 253 to 293 K and mole fractions of HFC134a were 0.105, 0.197, 0.331, 0.387, 0.536 and 0.557. The standard uncertainties were estimated to be less than 5 mK for temperature, 1?kPa for pressure, 0.003 for mole fraction, and 0.02% for density. The experimental results were reproduced by VNDS equation and our modified Rackett equation. The saturated pressures data were correlated by the PR-Soave-vdW equation. Good agreement between values of calculation and experiment were found.

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Format PDF

Pages : 376-382

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Détails

  • Titre original : Saturated liquid density and pressure measurements for HFC134a?+?HC290 by a compact single-sinker densimeter.
  • Identifiant de la fiche : 30022903
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 85
  • Date d'édition : 01/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.10.013

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