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Entropy Generation Analysis of Fully Developed Laminar Forced Convection in a Confocal Elliptical Duct with Uniform Wall Heat Flux


Affiliations
1 Department of Mechanics, Mahshahr branch, Islamic Azad University, Mahshahr, Iran
 

This paper presents the entropy generation and pumping power for developing forced convection in a confocal elliptical duct with constant heat flux. Entropy generation is obtained for various aspect ratio (ε), various ratio of the minor axis to the major axis (α), various wall heat flux and various Reynolds number. It is found that with the increasing aspect ratio (ε) values and decreasing ratio of the minor axis to the major axis (α), total entropy generation and pumping power at fixed Reynolds number increases; with increasing wall heat flux values, total entropy generation and pumping power decreases; with increasing cross-sectional area of duct values, total entropy generation and pumping power decreases

Keywords

Entropy, Laminar Flow, Confocal Elliptical Duct, Heat Flux
User

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  • Entropy Generation Analysis of Fully Developed Laminar Forced Convection in a Confocal Elliptical Duct with Uniform Wall Heat Flux

Abstract Views: 364  |  PDF Views: 114

Authors

Alireza Falahat
Department of Mechanics, Mahshahr branch, Islamic Azad University, Mahshahr, Iran

Abstract


This paper presents the entropy generation and pumping power for developing forced convection in a confocal elliptical duct with constant heat flux. Entropy generation is obtained for various aspect ratio (ε), various ratio of the minor axis to the major axis (α), various wall heat flux and various Reynolds number. It is found that with the increasing aspect ratio (ε) values and decreasing ratio of the minor axis to the major axis (α), total entropy generation and pumping power at fixed Reynolds number increases; with increasing wall heat flux values, total entropy generation and pumping power decreases; with increasing cross-sectional area of duct values, total entropy generation and pumping power decreases

Keywords


Entropy, Laminar Flow, Confocal Elliptical Duct, Heat Flux

References





DOI: https://doi.org/10.17485/ijst%2F2011%2Fv4i12%2F30301