Partager

Document IIF

Simulation numérique des performances de transfert de chaleur du R410A en zone de condensation-surchauffe.

Numerical simulation of heat transfer performance of R410A in condensing-superheated zone.

Auteurs : ZHANG L., LIU J., XU X.

Type d'article : Article de la RIF

Résumé

The heat transfer process in the condenser is often divided into superheated, two-phase and subcooled zone. But the three-zone model has discontinuities of the heat transfer coefficient between single phase and two-phase regions. This study applies a computational fluid dynamics (CFD) study on the two phase flow and the heat transfer characteristics in the condensing-superheated zone. The condensation process of R410A (Tsat=44.59°C) in a horizontal pipe (Di=6.1 mm) is simulated by using VOF (volume of fluid) model. The formation and the development of the condensation film are detailed analyzed. The heat transfer mechanism in the condensing-superheated zone includes both the single-phase convection and the phase transition. The heat transfer coefficient in the superheated condensation area increases from the single-phase convection to the saturated condensation. Combined with the development of liquid film morphology, this study is helpful for understanding the flow and heat transfer mechanism in the condensing-superheated zone.

Documents disponibles

Format PDF

Pages : 206-217

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 : Numerical simulation of heat transfer performance of R410A in condensing-superheated zone.
  • Identifiant de la fiche : 30028529
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 128
  • Date d'édition : 08/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2021.03.019
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres articles du même numéro (27)
Voir la source

Indexation