Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 50, Issue 5-6, Pages 1155-1162Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2006.04.025
Keywords
orthotropic thermal conductivity; biot number; pin fin heat transfer; polymer composites; carbon fiber; fin optimization; heat sink
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Analytical equations for temperature distribution and heat transfer rate from a cylindrical pin fin with orthotropic thermal conductivity, encountered in the use of thermally enhanced polymer composites, are derived and validated using detailed finite-element results. The thermal performance of such fins was found to depart from the classical fin solution with increasing radial conductivity-based Biot number. The in depth analysis of developed orthotropic axi-symmetric pin fin temperature and heat transfer rate equation is carried out to better understand the heat flow rate in such fins. (c) 2006 Published by Elsevier Ltd.
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