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Journal of Applied Sciences
  Year: 2009 | Volume: 9 | Issue: 2 | Page No.: 327-333
DOI: 10.3923/jas.2009.327.333
Irreversibilities in Duct Geometries of Rhombic and Circular with Constant Wall Heat Flux and Laminar Flow
H. Taherian and H. Mirgolbabaei

Abstract:
In this study, a second law comparison of irreversibility is used to determine the optimum duct geometry which minimizes losses for a range of laminar flows with constant wall heat flux condition. Water as a working fluid is considered. The duct geometries used are rhombic with various angle of bevel and circular. Hydraulic diameters are used for the different geometries. The rhombic geometry with the angle of 90°, when the frictional contributions of entropy generation become important is the best. Also power required to overcome fluid friction in the mentioned duct is smallest.
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How to cite this article:

H. Taherian and H. Mirgolbabaei, 2009. Irreversibilities in Duct Geometries of Rhombic and Circular with Constant Wall Heat Flux and Laminar Flow. Journal of Applied Sciences, 9: 327-333.

DOI: 10.3923/jas.2009.327.333

URL: https://scialert.net/abstract/?doi=jas.2009.327.333

 
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