Investigation on Fluid Flow and Heat Transfer Characteristics of Pin-Fin Arrays
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 2
Abstract
This is article presents the results of an experimental ‘investigation on fluid flow and heat transfer characteristics of pin-fin arrays’. In the past few decades, this topic has generated a keen interest because of its wide applications to cooling of microelectronic devices and turbine blade cooling. An overview of literature available on pin-fin array is given, based on which the problem has been identified. The study covers specifically the heat transfer, friction characteristics of convective heat transfer through a rectangular channel with cylindrical and square (with and without perforation) and diamond cross-section pin-fins attached over a rectangular duralumin flat surface with flow of air. The heat transfer community has relentlessly striven to achieve high heat transfer coefficients, albeit, with minimal pressure drop penalties. It is very well known that increase of velocity augments the heat transfer coefficients, and at the same time induces considerable penalties by way of increased pumping power. As a consequence, enhancement of heat transfer has been one of the favourite topics of investigation of thermal engineers. Those features are often encountered in the domain of micro-electro- mechanical systems (MEMS), wherein the surface areas available for heat transfer are very small. Removing large quantities of heat from small surface areas is invariably the major task in the thermal management of very and ultra large scale integration (VLSI and ULSI) systems widely applied in electronic equipment. Significant progresses in miniaturization of electronic packages achieved in the last few years have guided thermal engineers towards innovation of novel cooling technologies. It is fair to realize that thermal design not been able to keep pace with the strides in the electronic system design. Earlier studies on pin-fin arrays may be found in literature;(1,2,3,4&11,12).
Authors and Affiliations
E. Neduncheralathan, A. Dinesh Kumar, Athul Krishnan, Dennis Benny
Keywords
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