Entropy generation of forced convection film condensation on a horizontal elliptical tube

Javad Abolfazli Esfahani; Mahnaz Modirkhazeni

doi:10.1016/j.crme.2012.03.008

Entropy generation of forced convection film condensation on a horizontal elliptical tube

Javad Abolfazli Esfahani ¹ ; Mahnaz Modirkhazeni ¹

¹ Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

Comptes Rendus. Mécanique, Analytical and innovative solutions for heat transfer problems involving phase change and interfaces, Volume 340 (2012) no. 7, pp. 543-551.

Abstract

The aim of this study is to analyze the entropy generation number in forced convection film condensation on a horizontal isothermal elliptical tube. A numerical approach has been used to investigate how parameters, including ellipticity of ellipse, Reynolds and Brinkman numbers affect the irreversibility. The results show that the minimization of total entropy generation number ( $N_{S}$ ) can be achieved by reducing the values of Reynolds and Brinkman numbers. Also, it was concluded that the effect of ellipticity on total entropy generation number is significant for $e > 0.7$ and increasing ellipticity, increases the amount of $N_{S}$ .

Published online: 2012-05-04

DOI: 10.1016/j.crme.2012.03.008

Keywords: Forced convection, Film condensation, Entropy generation, Elliptical tube

Author's affiliations:

Javad Abolfazli Esfahani ¹; Mahnaz Modirkhazeni ¹

¹ Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

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     language = {en},
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Javad Abolfazli Esfahani; Mahnaz Modirkhazeni. Entropy generation of forced convection film condensation on a horizontal elliptical tube. Comptes Rendus. Mécanique, Analytical and innovative solutions for heat transfer problems involving phase change and interfaces, Volume 340 (2012) no. 7, pp. 543-551. doi : 10.1016/j.crme.2012.03.008. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2012.03.008/

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