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Measurement and Calculation of Heat Exchanger Performance Using Film Method

[+] Author Affiliations
Chérif Bougriou

Université de Batna, Batna, Algeria

Rachid Bessaïh, Mahfoud Kadja

University of Mentouri-Constantine, Constantine, Algeria

Kerstin Eckert

Dresden University of Technology, Dresden, Germany

Paper No. HT-FED2004-56129, pp. 47-56; 10 pages
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 3
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4692-X | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME


In this paper, we present a method of calculation by partial or total condensation of the water vapor contained in the humid air, over the smooth or finned tubes-heat recupurators. This study presents an implantation of the film method in a computer code developed here. The mathematical model used is validated by our experimental approach, using tubes bundles in staggered and aligned arrangements. The heat transfer coefficient by convection around the fin is supposed too be constant. The computer code predicts the heat flux exchanged in a range of 20% and 5%, in wet and dry regime, respectively. The apparent heat transfer coefficient by condensation can exceed 10 times the value of the heat transfer coefficient. The mathematical model used is validated with the experimental data obtained in this study.

Copyright © 2004 by ASME



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