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Forced Convection Thermal Analysis of Vortex Generator on Fin Stack

Author : Diksha D Nadkarni and R.R. Arakerimath

Pages : 1588-1591
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The forced air convection for the heat pipe cooling systems has an important role in managing thermal performance of the electronic and mechanical devices. Heat is dissipated from devices hence it is essential to improve the performance of such systems. Hence a heat pipe fin stack on condenser section is a method for such heat dissipated absorption. Also the vortex generators in triangular and rectangular shape are placed on the fins. Triangular vortex generators are formed by placing small pieces of Copper so that they stick out to form an angle. Vortex generators disrupt the thermal boundary growth and enhance heat transfer between fluid and fin surface. The objective is to increase heat transfer rate by varying the inlet temperature and position of vortex generator on fins by thermal analysis and experimentation. The results show that placing the triangular generators on both sides of heat pipe gives better performance and increases heat transfer. The heat transfer enhancement is highest for both sides followed by one side and no vortex generator. Also it was found that the experimental and thermal analysis results almost match each other.

Keywords: Heat pipes, heat enhancement, vortex generator, thermal analysis.

Article published in International Journal of Current Engineering and Technology, Vol.6, No.5 (Oct-2016)

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