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Analyse de la performance des échangeurs de chaleur à plaque utilisés comme évaporateurs.

Performance analysis of plate heat exchangers used as refrigerant evaporators.

Auteurs : HUANG J., BAILEY-MCEWAN M., SHEER T. J.

Résumé

This paper considers the performance of plate heat exchangers used as refrigerant evaporators. A literature review of the status of research shows that while chevron-plate heat exchangers have increasingly been applied in the last two decades as evaporators and condensers in liquid chillers and other refrigeration systems world-wide, the fundamental modelling of their operational characteristics is not conclusively understood. A limited amount of heat transfer and pressure drop data is available for a few refrigerants and even more limited information has been published from real, large-scale installations. In this study, flow boiling characteristics in the corrugated channel are discussed. Measurement data and assessments are presented from large-scale water-chilling machines, where plate heat exchangers are employed as flooded evaporators. Comparison between measured refrigerant-side heat transfer coefficients with those predicted by some published correlations is given and comments are made on the applicability of the respective correlations.

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Pages : ICR07-B2-184

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Détails

  • Titre original : Performance analysis of plate heat exchangers used as refrigerant evaporators.
  • Identifiant de la fiche : 2008-0144
  • Langues : Anglais
  • Sujet : Technologie
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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