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Chute de pression dans la colonne montante et l'évaporateur d'une boucle de thermosiphon diphasique de pointe.

Pressure drop in riser and evaporator in an advanced two-phase thermosiphon loop.

Auteurs : KHODABANDEH R.

Type d'article : Article, Article de la RIF

Résumé

This study presents an experimental investigation of pressure drop in the evaporators and the riser of an advanced thermosiphon loop. The thermosiphon was designed for the cooling of three parallel high heat flux electronic components. The tested evaporators were made from small blocks of copper in which 7, 5, 4, 3, 2, 1 vertical channels with the diameters of 1.1, 1.5, 1.9, 2.5, 3.5 and 6 mm, respectively, and a length of 14.6 mm were drilled. Tests were done with isobutane at heat fluxes ranging between 22.4 and 303 kW/m2. For prediction of the pressure drop, in the riser, different combinations of frictional pressure drop and void fraction correlations were tested. Regarding the evaporator a simple correlation based on a homogeneous model has been used to predict the pressure drop.

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Format PDF

Pages : 725-734

Disponible

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    20 €

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    Gratuit

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Détails

  • Titre original : Pressure drop in riser and evaporator in an advanced two-phase thermosiphon loop.
  • Identifiant de la fiche : 2005-1808
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 5
  • Date d'édition : 08/2005

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