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Entropy 2003, 5(5), 391-403; doi:10.3390/e5050391

Entropy Analysis in Pipe Flow Subjected to External Heating

Mechanical Engineering Department, KFUPM, Dhahran, Saudi Arabia
Received: 18 September 2002 / Accepted: 25 May 2003 / Published: 31 December 2003
(This article belongs to the Special Issue Entropy Generation in Thermal Systems and Processes)
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In the present study, heat transfer and entropy analysis for flow through a pipe system is considered. The Reynolds number and the pipe wall temperature effects on entropy distribution and total entropy generation in the pipe are investigated. Numerical scheme employing a control volume approach is introduced when solving the governing equations. Steel is selected as pipe material, while water is used as fluid. It is found that increasing pipe wall temperature and Reynolds number increases the entropy production rate, in which case, entropy generation due to heat transfer dominates over that corresponding to fluid friction.
Keywords: pipe; flow; heat transfer; entropy pipe; flow; heat transfer; entropy
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Al-Zaharnah, I.T. Entropy Analysis in Pipe Flow Subjected to External Heating. Entropy 2003, 5, 391-403.

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