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Document IIF

Études de la performance d'un système de conditionnement d'air au CO2 utilisant un éjecteur comme détendeur.

Studies on the performance of a CO2 air conditioning system using an ejector as an expansion device.

Auteurs : LEE J. S., KIM M. S.

Type d'article : Article, Article de la RIF

Résumé

Environmental issues such as stratospheric ozone depletion and global warming have been the primary motivations for recent research in the air-conditioning and refrigeration fields. The CO2 air-conditioning system forms a transcritical cycle which shows slightly degraded performance compared to the conventional system. To overcome this disadvantage, a cycle adopting an ejector is suggested. Experimental results of a CO2 air-conditioning system using an ejector were compared for various outdoor temperatures and inverter frequencies. The COPs of an air-conditioning system using an ejector and conventional system were calculated and compared based on the pressures and temperatures of experiments. The cooling capacity and COP in the air-conditioning system using an ejector are higher than those in the conventional system at an entrainment ratio greater than 0.76. In addition, better performance is shown at entrainment ratio greater than a certain value in other test conditions.

Documents disponibles

Format PDF

Pages : 140-152

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 : Studies on the performance of a CO2 air conditioning system using an ejector as an expansion device.
  • Identifiant de la fiche : 30010355
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 38
  • Date d'édition : 02/2014

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