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Document IIF

Développement et validation d'un modèle d'évaporateur à microcanaux pour un système de conditionnement d'air au CO2.

Development and validation of a microchannel evaporator model for a CO2 air-conditioning system.

Auteurs : JIN J., CHEN J. P., CHEN Z.

Résumé

This paper presents an analysis/computer model to predict the performance of an evaporator for a CO2 mobile air-conditioning system. Based on the finite volume method, the model has been developed by using mass and energy conservation equations, with emphasis placed on the refrigerant-side heat transfer and pressure drop characteristics. The in-tube refrigerant flow was divided into two-phase region and superheated region, and both dry and wet conditions were considered. Using the newly developed refrigerant-side heat transfer and pressure drop correlations, the model can predict the performance of evaporator with a reasonable accuracy compared with the experimental data. The errors for cooling capacities and refrigerant-side pressure drops were plus or minus 1.9 and 12.3%, respectively. Furthermore, the effects of selecting different refrigerant-side heat transfer and pressure drop model on the performance of evaporator are discussed.

Documents disponibles

Format PDF

Pages : ICR07-E1-1057

Disponible

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    20 €

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    Gratuit

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Détails

  • Titre original : Development and validation of a microchannel evaporator model for a CO2 air-conditioning system.
  • Identifiant de la fiche : 2007-2281
  • 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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