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Modélisation et analyses de la performance des serpentins d'évaporateurs au CO2 des meubles de vente frigorifiques utilisés pour les produits alimentaires réfrigérés et surgelés dans les supermarchés.

Modelling and performance analyses of CO2 evaporator coils for chilled and frozen food display cabinets in supermarket applications.

Numéro : pap. ID: 742

Auteurs : SUAMIR I., TASSOU S. A.

Résumé

This paper presents results of theoretical and experimental investigations on the main design parameters of CO2 evaporator coils such as tube diameter, number of refrigerant circuits, evaporator temperature and circulation ratio. A lumped element technique was applied to develop evaporator models which were used to design and to simulate different coil geometry and circuit arrangements. The test results from the experimental test facility were used for model validation. The evaporators considered were flooded evaporator coils for medium temperature supermarket refrigeration applications and direct expansion coils for both medium and low temperature applications. The paper also presents comparison analyses of CO2 evaporator coils and direct expansion coils using the synthetic refrigerant R-404A.

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Format PDF

Pages : 8 p.

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Détails

  • Titre original : Modelling and performance analyses of CO2 evaporator coils for chilled and frozen food display cabinets in supermarket applications.
  • Identifiant de la fiche : 30002184
  • Langues : Anglais
  • Source : Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Date d'édition : 21/08/2011

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