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Corrélation pour le transfert de chaleur de l'ébullition en écoulement dans les minicanaux.

Correlation for flow boiling heat transfer in mini-channels.

Auteurs : ZHANG W., HIBIKI T., MISHIMA K.

Type d'article : Article

Résumé

In view of practical significance of a correlation of heat transfer coefficient in the aspects of such applications as engineering design and prediction, some efforts towards correlating flow boiling heat transfer coefficients for mini-channels have been made in the study. Based on analyses of existing experimental investigations of flow boiling, it was found that liquid-laminar and gas-turbulent flow is a common feature in many applications of mini-channels. Traditional heat transfer correlations for saturated flow boiling were developed for liquid-turbulent and gas-turbulent flow conditions and thus may not be suitable in principle to be used to predict heat transfer coefficients in mini-channels when flow conditions are liquid-laminar and gas-turbulent. A comparison of the newly developed correlation with various existing data for mini-channels shows a satisfactory agreement. In addition, an extensive comparison of existing general correlations with databases for mini-channels has also been made.

Détails

  • Titre original : Correlation for flow boiling heat transfer in mini-channels.
  • Identifiant de la fiche : 2005-0625
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 26
  • Date d'édition : 12/2004

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