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Etude numérique tridimensionnelle sur la corrélation entre les ailettes aux inclinaisons variables et le comportement thermique dans un échangeur de chaleur à plaques aux tubes ailetés.

3-D Numerical study on the correlation between variable inclined fin angles and thermal behaviour in plate fin-tube heat exchanger.

Auteurs : SAHIN H. M., DAL A. R., BAYSAL E.

Type d'article : Article

Résumé

In this study, the heat transfer enhancement and pressure drop values of seven different fin angles with plain fin-tube heat exchangers were investigated. The numerical simulation of the fin-tube heat exchanger was performed by using a three dimensional (3-D) numerical computation technique. Therefore, a CFD computer code, the FLUENT was used to solve the equation for the heat transfer and pressure drop analyses in the fin-tube heat exchanger. The model drawing was created and meshed by using GAMBIT software. The heat transfer and pressure drop values of the vertical fin angle were provided to compare with variable inclined fin angles (h= 5, 10, 15, 20, 25 and 30°). The heat transfer values were normalized to compare all cases. For inclined fin angle h= 30°, which is the optimum angle, the maximum heat transfer enhancement per segment was obtained 1.42 W (the normalized value 105.24%), the maximum loss power associated with pressure drop per segment was only 0.54 mW. [Reprinted with permission from Elsevier. Copyright, 2007].

Détails

  • Titre original : 3-D Numerical study on the correlation between variable inclined fin angles and thermal behaviour in plate fin-tube heat exchanger.
  • Identifiant de la fiche : 2008-0553
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 27 - n. 11-12
  • Date d'édition : 08/2007

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