Partager

Document IIF

Modélisation mathématique et étude thermodynamique de l'usage d'éjecteurs diphasiques pour la récupération de travail et la recirculation de liquide dans des cycles frigorifiques.

Mathematical modeling and thermodynamic investigation of the use of two-phase ejectors for work recovery and liquid recirculation in refrigeration cycles.

Auteurs : LAWRENCE N., ELBEL S.

Type d'article : Article, Article de la RIF

Résumé

This paper presents the results of a numerical investigation on the performance of ejector cycles in which the work recovered is used to recirculate liquid through the evaporator. The ejector recirculation cycle, in which the ejector is only used to recirculate liquid and improve evaporator performance, and the standard ejector cycle, in which the ejector can be used to both recirculate liquid and directly unload the compressor, are investigated. The analysis uses a microchannel evaporator and refrigerants R134a, R410A, and CO2. It is seen that fluids that have large throttling loss but gain little benefit from liquid recirculation (CO2) should use the ejector to directly unload the compressor, while fluids that have lower throttling loss but gain significant benefit from liquid recirculation (R134a) should use the ejector to improve evaporator performance through liquid recirculation. It is also seen that the ejector recirculation cycle is better suited for ejector off-design operation.

Documents disponibles

Format PDF

Pages : 41-52

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 : Mathematical modeling and thermodynamic investigation of the use of two-phase ejectors for work recovery and liquid recirculation in refrigeration cycles.
  • Identifiant de la fiche : 30015665
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 58
  • Date d'édition : 10/2015

Liens


Voir d'autres articles du même numéro (23)
Voir la source

Indexation