Partager

Document IIF

Modèle à deux fluides pour l'écoulement diphasique d'un frigorigène à travers l'orifice d'un tube court.

Two-fluid model of refrigerant two-phase flow through short tube orifice.

Auteurs : YANG L., ZHANG C. L.

Type d'article : Article, Article de la RIF

Résumé

Pronounced hydrodynamic and thermodynamic non-equilibrium exist in the flow of refrigerant through a short tube orifice under typical operating conditions. A non-equilibrium two-fluid model (TFM) for refrigerant two-phase critical flow inside the short tube orifice is developed. Both interphase velocity slip and inter-phase temperature difference are taken into account in the model. The mass flow rate, the two-phase velocity and temperature distributions in a short tube orifice are simulated. Comparisons among the experimental data of refrigerants R134a, R12, R22, R410A and R407C flowing through short tubes, the predictions by the TFM and by the homogeneous equilibrium model (HEM) show that the TFM gives acceptable predictions with the deviations of plus or minus 20%, while the HEM underestimates the flow rate by 20% or so.

Documents disponibles

Format PDF

Pages : 419-427

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 : Two-fluid model of refrigerant two-phase flow through short tube orifice.
  • Identifiant de la fiche : 2005-1640
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 3
  • Date d'édition : 05/2005

Liens


Voir d'autres articles du même numéro (15)
Voir la source

Indexation