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Transfert de chaleur lors de la condensation et configuration de l'écoulement dans un tube à microailettes à chevrons.

Condensation heat transfer and flow pattern inside a herringbone-type micro-fin tube.

Auteurs : MIYARA A., NONAKA K., TANIGUCHI M.

Résumé

Condensation heat transfer and pressure drop of R410A and R22 in a newly proposed herringbone-type micro-fin tube are measured and compared to those of a helical micro-fin tube and a smooth tube. The heat transfer coefficient of the herringbone micro-fin tube is higher than that of the helical micro-fin tube in the high mass velocity region, while it has slightly lower value in the low mass velocity region. Pressure drop of the herringbone micro-fin tube is, however, higher than that of the helical micro-fin tube. Flow patterns of the herringbone micro-fin tube are observed and the heat transfer enhancement mechanism is discussed.

Détails

  • Titre original : Condensation heat transfer and flow pattern inside a herringbone-type micro-fin tube.
  • Identifiant de la fiche : 2000-0120
  • Langues : Anglais
  • Source : Heat transfer in condensation and evaporation: application to industrial and environmental processes. Preprints of the EUROTHERM Seminar 62.
  • Date d'édition : 17/11/1998
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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