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Éjecteur dans des systèmes à compression de vapeur au R410A avec quantification expérimentale de deux dispositifs principaux d'amélioration de la performance : la récupération de travail et l'alimentation liquide.

Ejector in R410A vapor compression systems with experimental quantification of two major mechanisms of performance improvement: work recovery and liquid feeding.

Auteurs : POTTKER G., HRNJAK P.

Type d'article : Article, Article de la RIF

Résumé

This paper presents experimental data and analysis comparing the performance of an R410A ejector vapor compression system to those of a liquid-fed evaporator system and a conventional expansion valve system. The objective was to quantify separately two major improvements of the ejector system: work recovery and liquid-fed evaporator. The ejector system was first compared to a system with liquid-fed evaporator at matching cooling capacities and revealed improvements from 1.9% to 8.4% solely due to the work recovery of the ejector. When compared to a conventional expansion valve system at the same cooling capacity, the ejector setup improved COP from 8.2% to 14.8% due to simultaneous benefits of liquid-fed evaporator and work recovery. Overall ejector efficiencies from 12.2% to 19.2% were achieved.

Documents disponibles

Format PDF

Pages : 184-192

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Ejector in R410A vapor compression systems with experimental quantification of two major mechanisms of performance improvement: work recovery and liquid feeding.
  • Identifiant de la fiche : 30013375
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 50
  • Date d'édition : 02/2015

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