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Recherches expérimentales et théoriques sur la condensation de reflux dans un tube incliné de faible diamètre.

Experimental and theoretical investigation of reflux condensation in an inclined small diameter tube.

Auteurs : FIEDLER S., AURACHER H.

Type d'article : Article

Résumé

Heat transfer, flooding point and film thickness during reflux condensation of refrigerant R134a in an inclined small diameter tube (ID: 7 mm, length: 500 mm) are experimentally investigated. Also a physical model for laminar reflux condensation of a pure saturated vapour in an inclined small diameter tube is presented. The theoretical results for the film thickness and the heat transfer are compared with the experimental data. It is found that the inclination angle has a significant effect on the heat transfer coefficient and the flooding point. The calculated values for the film thickness and the mean heat transfer coefficient are in good agreement with the experimental data. The deviation is less than 15%.

Détails

  • Titre original : Experimental and theoretical investigation of reflux condensation in an inclined small diameter tube.
  • Identifiant de la fiche : 2005-0601
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 19-20
  • Date d'édition : 09/2004

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