Table of Contents
Journal of Thermodynamics
Volume 2016, Article ID 1562145, 8 pages
Research Article

Analysis of Effect of Heat Pipe Parameters in Minimising the Entropy Generation Rate

Department of Mechanical Engineering, National Institute of Technology Calicut, Kerala 673601, India

Received 26 September 2015; Revised 4 January 2016; Accepted 5 January 2016

Academic Editor: Pedro Jorge Martins Coelho

Copyright © 2016 Rakesh Hari and Chandrasekharan Muraleedharan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Heat transfer and fluid flow in the heat pipe system result in thermodynamic irreversibility generating entropy. The minimum entropy generation principle can be used for optimum design of flat heat pipe. The objective of the present work is to minimise the total entropy generation rate as the objective function with different parameters of the flat heat pipe subjected to some constraints. These constraints constitute the limitations on the heat transport capacity of the heat pipe. This physical nonlinear programming problem with nonlinear constraints is solved using LINGO 15.0 software, which enables finding optimum values for the independent design variables for which entropy generation is minimum. The effect of heat load, length, and sink temperature on design variables and corresponding entropy generation is studied. The second law analysis using minimum entropy generation principle is found to be effective in designing performance enhanced heat pipe.