Partager

Document IIF

Amélioration de la performance des cycles frigorifiques à détente par éjecteur à l’aide d’un surpresseur (booster) utilisant différents frigorigènes : analyse thermodynamique et optimisation.

Performance improvement of ejector expansion refrigeration cycles employing a booster compressor using different refrigerants: Thermodynamic analysis and optimization.

Auteurs : TAKLEH H., ZARE V.

Type d'article : Article, Article de la RIF

Résumé

A novel ejector-expansion refrigeration cycle (EERC) is proposed, analyzed and optimized in this paper. Assuming a constant-pressure mixing model for ejector simulation, a detailed and comprehensive thermodynamic analysis, based on the first and second laws, is conducted and the system performance is investigated for six proper refrigerants. The proposed system is then optimized considering the exergy efficiency as the objective function and a comparison is made with the standard EERC and conventional vapor compression refrigeration system at the optimized conditions. The results indicated that, among the six investigated refrigerants, R1234ze is the best one for which the proposed system has 5.7% and 15.5% higher exergy efficiency values than the standard EERC and conventional vapor compression refrigeration cycle, respectively, at condensing temperature of 40?°C and evaporation temperature of 5?°C. Also, it is concluded that for higher condensing and lower evaporating temperatures the value of performance improvement is higher.

Documents disponibles

Format PDF

Pages : 56-70

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 improvement of ejector expansion refrigeration cycles employing a booster compressor using different refrigerants: Thermodynamic analysis and optimization.
  • Identifiant de la fiche : 30025733
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 101
  • Date d'édition : 05/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2019.02.031

Liens


Voir d'autres articles du même numéro (17)
Voir la source

Indexation