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Ebullition nucléée des mélanges à deux et trois composants.

Nucleate boiling of two and three-component mixtures.

Auteurs : FUJITA Y., TSUTSUI M.

Type d'article : Article

Résumé

For three pure fluids and their two- and three-component mixtures, heat transfer coefficients were measured in nucleate pool boiling on the upward facing copper surface of 40 mm diameter. The more-, moderate- and less-volatile components in mixtures are refrigerants R134a, R142b and R123, respectively. The heat transfer coefficients of the mixtures were less than the interpolated heat transfer coefficients between pure components, with more reduction at higher heat flux. Two correlations originally developed for two-component mixtures by Thome and Shakir and by Fujita and Tsutsui reproduced well the measured heat transfer coefficients of three- as well as two-component mixtures. This result implies that the boiling range included in the correlations accounts for heat transfer reduction in mixture boiling.

Détails

  • Titre original : Nucleate boiling of two and three-component mixtures.
  • Identifiant de la fiche : 2005-0632
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 21
  • Date d'édition : 10/2004

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