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Evaluation expérimentale de la performance optimale d'un système frigorifique à éjecteur selon la géométrie de l'éjecteur.

Experimental determination of the optimum performance of ejector refrigeration system depending on ejector area ratio.

Auteurs : YAPICI R., ERSOY H. K., AKTOPRAKOGLU A., et al.

Type d'article : Article, Article de la RIF

Résumé

The performance of the ejector refrigeration system using ejectors with cylindrical mixing chamber is studied at operating conditions with choking in the mixing chamber. The condenser pressure is chosen so that the secondary flow choking can occur even in the ejector with the smallest area ratio. In this study, the performance of the constructed system is determined by using six configurations of ejector and R123 as working fluid in the system. The study is performed over a range of the ejector area ratio from 6.5 to 11.5 at the compression ratio 2.47. In the studied range, the experimental coefficient of performance of the system rises from 0.29 to 0.41, as the optimum generator temperature increases from 83 to 103 °C. Similar results were also found in the parametric study when the efficiencies of the nozzle and diffuser are taken as 0.90.

Documents disponibles

Format PDF

Pages : 1183-1189

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 : Experimental determination of the optimum performance of ejector refrigeration system depending on ejector area ratio.
  • Identifiant de la fiche : 2008-4000
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 7
  • Date d'édition : 11/2008
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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