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Distribution diphasique du R-134a dans le collecteur d'un échangeur de chaleur à écoulement parallèle.

Two-phase distribution of R-134a in a header of a parallel flow heat exchanger.

Auteurs : KIM N. H., PARK T. K., HAM J. H.

Résumé

The two-phase flow distribution of R-134a was experimentally investigated in a parallel-flow heat exchanger comprised of two horizontal headers and ten vertical channels. Both upward and downward configurations were tested. The effect of tube protrusion depth was also investigated. It was observed that, for downward flow, most of the liquid was extracted from the frontal part of the header. For upward flow, on the contrary, a significant portion of the liquid was forced to rear part of the header. The effect of mass flux, quality and protrusion depth on the liquid distribution were also investigated.

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  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Two-phase distribution of R-134a in a header of a parallel flow heat exchanger.
  • Identifiant de la fiche : 2007-1493
  • Langues : Anglais
  • Source : 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Date d'édition : 17/07/2006

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