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Document IIF

Modèle de simulation fondé sur les principes fondamentaux utilisé pour étudier les phénomènes transitoires lors du démarrage et du cyclage des réfrigérateurs domestiques.

A first-principles simulation model for the start-up and cycling transients of household refrigerators.

Auteurs : HERMES C. J. L., MELO C.

Type d'article : Article, Article de la RIF

Résumé

A first-principles model for simulating the transient behaviour of household refrigerators is presented in this study. The model was employed to simulate a typical frost-free 440-l top-mount refrigerator, in which the compressor is on-off controlled by the freezer temperature, while a thermo-mechanical damper is used to set the fresh-food compartment temperature. Innovative modelling approaches were introduced for each of the refrigerator components: heat exchangers (condenser and evaporator), non-adiabatic capillary tube, reciprocating compressor, and refrigerated compartments. Numerical predictions were compared to experimental data showing a reasonable level of agreement for the whole range of operating conditions, including the start-up and cycling regimes. The system energy consumption was found to be within plus or minus 10% agreement with the experimental data, while the air temperatures of the compartments were predicted with a maximum deviation of plus or minus 1°C.

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Format PDF

Pages : 1341-1357

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : A first-principles simulation model for the start-up and cycling transients of household refrigerators.
  • Identifiant de la fiche : 2009-0213
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 8
  • Date d'édition : 12/2008

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