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Nouvelle approche pour améliorer la performance d'un évaporateur à microcanaux en évacuant l'écoulement inverse périodique de vapeur.

New approach to improve performance by venting periodic reverse vapor flow in microchannel evaporator.

Auteurs : TUO H., HRNJAK P.

Type d'article : Article, Article de la RIF

Résumé

This paper presents a proposal for a venting reverse vapor in flash gas removal A/C system in order to improve refrigerant distribution and reduce pressure drop in microchannel evaporator and thus increase system efficiency. Introduction to the reverse vapor flow observed in parallel flow microchannel evaporator was presented in earlier IJR paper by the authors. An experimental comparison of the A/C system with new approach to an FGB system revealed that vapor venting provided a 5% increase of cooling capacity and 3% of COP when operated at identical test conditions, while the maximum COP improvement was approximately 10%–12% when capacity is matched by reduction of compressor speed. The improvement compared to direct expansion system was significantly higher.

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Format PDF

Pages : 2187-2195

Disponible

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    20 €

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Détails

  • Titre original : New approach to improve performance by venting periodic reverse vapor flow in microchannel evaporator.
  • Identifiant de la fiche : 30009826
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 8
  • Date d'édition : 12/2013

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