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Document IIF

Modèle numérique d'un système frigorifique à compression de vapeur.

Numerical model of a vapour-compression refrigeration system.

Auteurs : KOURY R. N. N., MACHADO L., ISMAIL K. A. R.

Résumé

The modelled system is constituted by an open speed-controlled compressor, a manual expansion valve, an evaporator, a condenser, and both counter-flow multitubes. As the expansion valve and the compressor have a very small thermal inertia, their internal energy variations over time were not considered. The heat exchangers were modelled from the mass, energy and momentum equations for each control volume under consideration. A dynamic model was employed to evaluate the behaviour of the system in a start-up. Based on the same conditions of the dynamic simulations, a steady-state model was employed to evaluate the operation point after start-up. Good agreement has been reached between the dynamic and steady state numerical model predictions.

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  • 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 model of a vapour-compression refrigeration system.
  • Identifiant de la fiche : 2000-1273
  • Langues : Anglais
  • Source : 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
  • Date d'édition : 19/09/1999

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