Partager

Document IIF

Équations de corrélation simplifiées du coefficient de transfert de chaleur pendant un écoulement à changement de phase à l'intérieur de tubes remplis d'un matériau poreux.

Simplified correlation equations of heat transfer coefficient during phase change flow inside tubes filled with porous media.

Numéro : pap. n. 11.2

Auteurs : HAMMAD M., TARAWNEH M., ALSHQIRATE A.

Résumé

In this work an easy to use, simple and direct equations for heat transfer coefficients of phase change fluid flow were were formulated and tested. The considered fluid flow encountered convection heat flux inside rigid tubes filled with porous media. During the flow, evaporation and condensation processes were assumed. An analytical method using exponential non dimensional analysis was used. The Buckingham p theorem and method of indices was used to obtain simplified formulae for the convection heat transfer coefficient. As a case study, carbon dioxide was used. Resulted values were compared to the experimental values for validation purposes. Results also were compared to published values and found in the same range of values. The formulae obtained can be used to calculate the mean heat transfer coefficients and heat flux.. Enhancement in heat transfer by increasing heat flux was due to the existence of the porous media inside the tube. Using these correlations may enhance heat exchanger design as well especially condensers and evaporators. Better energy use and higher effectiveness factors may result following this method.

Documents disponibles

Format PDF

Pages : 15 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Simplified correlation equations of heat transfer coefficient during phase change flow inside tubes filled with porous media.
  • Identifiant de la fiche : 30006160
  • Langues : Anglais
  • Source : 4th Jordanian IIR International Conference on Refrigeration and Air Conditioning. Proceedings: Amman, Jordan, September 10-12, 2012.
  • Date d'édition : 10/09/2012

Liens


Voir d'autres communications du même compte rendu (28)
Voir le compte rendu de la conférence

Indexation