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Simulation numérique des échangeurs de chaleur tube capillaire-tube d'aspiration.

Numerical simulation of lateral capillary tube-suction line heat exchangers.

Auteurs : GARCÍA-VALLADARES O.

Résumé

A detailed one-dimensional numerical simulation of the thermal and fluid-dynamic behaviour of lateral capillary tube-suction line heat exchangers has been carried out. Continuity, momentum and energy equations for fluid flows, together with the energy equation in solids, are solved iteratively in a segregated manner. The numerical model allows analysis of aspect such as geometry, type of fluid, critical or non-critical flow conditions, metastable regions and transient cases. The accuracy of the detailed simulation model is demonstrated by comparing simulation results with a wide range of steady state experimental data from the technical literature. 97.7% of the 132 data points evaluated for mass flow rate are within an error of plus or minus 15%, 81.1% are within an error of plus or minus 10%, with a mean deviation of plus or minus 6.5%. For the suction line outlet temperature 92.8% of the 111 data points evaluated are within an error of plus or minus 2°C with a mean deviation of plus or minus 0.9°C.

Documents disponibles

Format PDF

Pages : ICR07-B2-1606

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 lateral capillary tube-suction line heat exchangers.
  • Identifiant de la fiche : 2008-0152
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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