Table of Contents
ISRN Chemical Engineering
Volume 2012 (2012), Article ID 941587, 9 pages
http://dx.doi.org/10.5402/2012/941587
Research Article

Parametric Study of Entropy Generation in a Fluid with Internal Heat Generation between Two Rotating Cylinders Subjected to Convective Cooling at the Surface

1Department of Energy Technology, School of Science and Technology, Aalto University, P.O. Box 11400, 00076 Aalto, Finland
2Department of Mechanical Engineering, Faculty of Technology, Firat University, 23119 Elazig, Turkey

Received 18 October 2012; Accepted 5 November 2012

Academic Editors: C.-T. Hsieh and P. L. Maffettone

Copyright © 2012 M. El Haj Assad and Hakan F. Oztop. 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.

Abstract

Entropy generation analysis of a steady fluid flow with internal heat generation between two rotating cylinders was presented. The surface of the inner cylinder was kept at constant temperature while the surface of the outer cylinder was exposed to convection cooling. Analytical expressions for velocity and temperature distributions within the fluid were obtained. The effects of velocity ratio, Biot number, Brinkman number and other dimensionless parameters on the temperature distribution and local and total entropy generation rates were investigated and the results were presented graphically.