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Une analyse alternative appliquée pour étudier la performance de l'éjecteur utilisé dans un système frigorifique de pompe à jet au R141b.

An alternative analysis applied to investigate the ejector performance used in R141b jet-pump refrigeration system.

Auteurs : THONGTIP T., APHORNRATANA S.

Type d'article : Article, Article de la RIF

Résumé

The system performance of R141b jet-pump refrigerator is discussed based on an alternative analysis. It explains the operation of the jet-pump refrigerator operating under actual conditions. A 2 kW cooling of R141b jet-pump refrigerator is designed and constructed to test the ejector performance. With the use of an alternative analysis, point of interest called “critical evaporator temperature” is determined. This point indicates the lowest possible evaporator temperature where the secondary fluid flow is still choked. The critical point varies with the change in operating conditions and with the primary nozzle used. An increase of primary mass flow rate causes the critical point reducing. However, it does not always true. When the primary mass flow rate increases to a certain value, the refrigerator is operated at higher critical evaporator temperature. Thus, the optimum range of the primary mass flow rate for this particular ejector is provided for this present work.

Documents disponibles

Format PDF

Pages : 20-33

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 : An alternative analysis applied to investigate the ejector performance used in R141b jet-pump refrigeration system.
  • Identifiant de la fiche : 30014038
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 53
  • Date d'édition : 05/2015

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