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Caractéristiques de l'ébullition libre nucléée à partir d'un faisceau de tubes plongé dans du R-134a saturé.

Nucleate pool boiling characteristics from coated tube bundles in saturated R-134a.

Auteurs : HSIEH S. S., HUANG G. Z., TSAI H. H.

Type d'article : Article

Résumé

Nucleate pool boiling heat transfer from plasma coated copper tube bundles with porous copper (Cu) immersed in saturated R-134a was experimentally studied. The bundle is composed of 15 tubes (of which the number of heated/instrumented tubes was varied) arranged in four different configurations with a pitch-to-diameter ratio of 1.5. The influences of various parameters such as bundle arrangements and heat flux were clarified. Tests were conducted with both increasing and decreasing the heat flux. The data presented indicated that at low heat fluxes, the vertical-in-line tube bundles have the highest bundle factor. A configuration factor was proposed which can be used to characterize the geometric arrangements of the bundles.

Détails

  • Titre original : Nucleate pool boiling characteristics from coated tube bundles in saturated R-134a.
  • Identifiant de la fiche : 2003-1723
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 7
  • Date d'édition : 03/2003

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