Partager

Document IIF

R-290, R-600a et un mélange de R-290 et de R-600a : mesures de la tension superficielle.

Measurements of the surface tension for R-290, R-600a and R-290/R-600a mixture.

Auteurs : TANAKA K., HIGASHI Y.

Type d'article : Article, Article de la RIF

Résumé

The surface tensions of R-290, R-600a and R-290/R-600a mixture have been measured by the modified differential capillary-rise method. Twenty-two data points for R-290 and 21 data points for R-600a were obtained in the temperature range between 273 and 354 K, and 43 data points for R-290/R-600a mixture on three isotherms of 278, 300 and 320 K were obtained. The experimental uncertainties of temperature and surface tension are estimated to be within 20 mK and 0.2 mN/m, respectively. Surface tension correlations as a function of temperature for pure R-290 and R-600a were formulated in the temperature range between 253 K and critical temperature, and the correlation as a function of the composition for R-290/R-600a mixture was discussed at 278, 300 and 320 K. It is found that the surface tension for R-290/R-600a mixture can be reproduced by the simple mixing rule by mole fraction with the correlations of both pure components.

Documents disponibles

Format PDF

Pages : 1368-1373

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Measurements of the surface tension for R-290, R-600a and R-290/R-600a mixture.
  • Identifiant de la fiche : 2008-0059
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 8
  • Date d'édition : 12/2007

Liens


Voir d'autres articles du même numéro (17)
Voir la source

Indexation