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Caractéristiques de transfert de chaleur et de dégivrage d'un faisceau horizontal de tubes refroidis plongés dans un lit fluidisé peu profond.

Heat-transfer and defrosting characteristics of a horizontal array of cooled tubes immersed in a very shallow fluidized bed.

Auteurs : AIHARA T., OHARA T., SHIMOYAMA T., KITANO H.

Type d'article : Article

Résumé

Heat transfer and defrosting characteristics have been studied experimentally. The fluidized bed produces gas-solid particle impinging jets to effectively remove frost layers on the tube surface. It has been verified that frost-free running of the cooled tubes is possible under the conditions of inlet air temperature -7 deg C, tube-surface temperature -17 deg C and relative humidity 80%. The defrosting mechanism was observed in detail with a visualization technique.

Détails

  • Titre original : Heat-transfer and defrosting characteristics of a horizontal array of cooled tubes immersed in a very shallow fluidized bed.
  • Identifiant de la fiche : 1998-0833
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 40 - n. 8
  • Date d'édition : 05/1997

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