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Simulation et optimisation d’un système frigorifique de supermarché au R744 à deux températures avec éjecteur.

Simulation and optimization of a R744 two- temperature supermarket refrigeration system with an ejector.

Auteurs : HUANG Z., ZHAO H., YU Z., et al.

Type d'article : Article, Article de la RIF

Résumé

In order to make R744 two-temperature supermarket refrigeration system operate effectively in countries with higher ambient temperatures such as China, a conventional booster refrigeration system was modified by adding an ejector into the system. Simulations were performed to investigate and optimize the new system under different ambient temperatures and compared with the conventional booster refrigeration system. Results showed that the compressor's work of the booster refrigeration system with an ejector can be reduced by more than 10% compared to the conventional booster refrigeration system at , resulting in an increase of COP more than 11%. However, it is worse than the conventional booster refrigeration system when the ambient temperature is low. In order to solve this problem, a further improved booster refrigeration system with an ejector by adding different control strategies was proposed, which can ensure that the system operates with a high COP at all ambient temperatures.

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Format PDF

Pages : 73-82

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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 : Simulation and optimization of a R744 two- temperature supermarket refrigeration system with an ejector.
  • Identifiant de la fiche : 30023939
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 90
  • Date d'édition : 06/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.04.007

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