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Experimental Study of Parallel Plate Fin Heat Sinks with and without Perforation on Circular Pin Fins between the Plate Fins


Author : Rahul R. Sonawane and D. D. Palande

Pages : 375-380, DOI:http://Dx.Doi.Org/10.14741/Ijcet/22774106/spl.5.6.2016.70
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Abstract

It is very important to enhance the heat transfer rate and ensure the better cooling of electronic devices. The fined surface is most commonly used to dissipate heat quickly to the surrounding flowing fluid. Experiment is carried out to investigate heat transfer rate in natural convection of parallel plate fin heat sink with circular pin fins placed between the plate fins. The firstly parallel plate heat sink consists of without perforated circular pin fin and its performance is compared with perforated circular pin fin. The height of circular pin fin is taken as 50 mm, 35 mm, 25 mm respectively for both cases. Further the number of perforation on pin fin increases and its effect on heat transfer rate is also examined. The result shows that, parallel plate fin heat sink with perforated circular pin fins gives more heat transfer than without perforated circular pin fins. In above three cases, it is observed that circular pin fin at 25 mm height shows better heat transfer than other two heights. The increase in number of perforation on each pin fin increases heat transfer rate.

Keywords: Parallel plate fin Heat sink, Circular pin fins, Perforation, Heat transfer rate.

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