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Transfert de chaleur et impact défavorable de la chute de pression en fonction du nombre de rangées d'un faisceau de tubes ailetés en quinconce ayant une seule rangée d'ailettes transversale.

Heat transfer and pressure loss penalty for the number of tube rows of staggered finned-tube bundles with a single transverse row of winglets.

Auteurs : KWAK K. M., TORII K., NISHINO K.

Type d'article : Article

Résumé

Experiments were performed for two, three, four and five rows of staggered tube bundles. The pairs of winglets were placed with a previously-unused orientation for the purpose of enhancement of heat transfer and reduction of pressure loss penalty. For three rows of tubes with a single transverse row of winglets beside the front row of the tubes, the heat transfer was augmented by 10-30%, and yet the pressure loss was reduced by 34-55% with an increase in the Reynolds number from 350 to 2100. The reduction in the pressure loss penalty for three rows of tube bundles is the largest in comparison with the other numbers of rows.

Détails

  • Titre original : Heat transfer and pressure loss penalty for the number of tube rows of staggered finned-tube bundles with a single transverse row of winglets.
  • Identifiant de la fiche : 2003-1209
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 1
  • Date d'édition : 01/2003

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