Partager

Document IIF

Une analyse [par mécanique des fluides numérique] (CFD) d'une structure d'écoulement à l'intérieur d'un éjecteur de vapeur pour identifier les conditions de fonctionnement expérimentales correctes pour un système frigorifique fonctionnant à l'énergie solaire.

A CFD analysis of the flow structure inside a steam ejector to identify the suitable experimental operating conditions for a solar-driven refrigeration system.

Auteurs : ALLOUCHE Y., BOUDEN C., VARGA S.

Type d'article : Article, Article de la RIF

Résumé

This paper presents a numerical study of a steam ejector using CFD with the objective of identifying suitable experimental conditions that allows for a reliable ejector cycle operation. The flow structure and the mixing process inside the ejector were assessed for a range of operating conditions typical for a solar driven air conditioning system. The effect of varying the condenser pressure was studied. It was found that for relatively low condenser pressures (<2.5 kPa), two distinct shock waves occurred in the diffuser section resulting in a reduced re-compression efficiency, although it did not have a direct impact on the entrainment ratio. The effect of generator pressure was also studied. It was found that the entrainment ratio showed a maximum for constant condenser conditions. A near optimal condition of 70 kPa generator and 3 kPa condenser pressures were identified and tested in a preliminary experiment carried out with the solar driven ejector system installed in Tunis.

Documents disponibles

Format PDF

Pages : 186-195

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 : A CFD analysis of the flow structure inside a steam ejector to identify the suitable experimental operating conditions for a solar-driven refrigeration system.
  • Identifiant de la fiche : 30010959
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 39
  • Date d'édition : 03/2014

Liens


Voir d'autres articles du même numéro (16)
Voir la source

Indexation