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Document IIF

Évaluation des performances d’un système frigorifique au CO2 transcritique pour les supermarchés dans des conditions climatiques chaudes.

Performance evaluation of a transcritical CO2 refrigeration system for supermarkets in hot climatic conditions.

Numéro : 1221

Auteurs : RAI S., KUMAR A., MODI A.

Résumé

Subcooling of the refrigerant before expanding it to the evaporator pressure in a transcritical carbon dioxide (CO2) refrigeration system considerably improves the system's performance. This numerical study uses the refrigerating effect generated in a heat-driven ejector refrigeration system to subcool the CO2 refrigerant. The heat of the CO2 refrigerant at the compressor exit is used to drive the heat-driven ejector refrigeration system. Further, in another configuration, an internal heat exchanger (IHX) is utilised to subcool the refrigerant. The performance analysis of the heat-driven ejector cooling assisted transcritical CO2 refrigeration system with and without the IHX has been performed. The parametric study has been carried out for various variables, while the low temperature evaporator and the medium temperature evaporator are maintained at -30 °C and -10 °C, respectively. The maximum improvement in the Coefficient of performance (COP) for the proposed system has been observed about 14.2 % and 50.4 % as compared to parallel compression refrigeration system and booster refrigeration system, respectively.

Documents disponibles

Format PDF

Pages : 11 p.

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 : Performance evaluation of a transcritical CO2 refrigeration system for supermarkets in hot climatic conditions.
  • Identifiant de la fiche : 30032728
  • Langues : Anglais
  • Source : 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
  • Date d'édition : 08/2024
  • DOI : http://dx.doi.org/10.18462/iir.gl2024.1221

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