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Study on Thermal Performance of Micro Fin Heat Sink under Natural Convection–A Review

Author : Shashikant.V. Raut and Basavraj.S.Kothavale

Pages : 257-261
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The present study of heat transfer micro fin under natural convection. The heat transfer of fin array is depends on various parameter of fin or fin array like fin thickness, fin spacing and fin height. By varying this parameters what is the effect on heat transfer studied. In that the micro fin array are micro scale dimension are 5 cm. this is the very small fin array use in electronic cooling applications where no space for the fan or blower. The fin parameter varies in also micro scale fin thickness varies between 0.2-0.8 mm, fin spacing 0.2-0.8 mm, and fin height 0.6-0.8 mm. by using this parameter variation develop the 10 no of geometry and checking the mass specific heat transfer coefficient for each geometry. During this heat input also varies i.e. Also check the performance for various electrical loads. It is found that the specific mass heat transfer increases when increasing the spacing of the fins.The performance of micro fin array maximum at maximum spacing and minimum thickness of fin like 0.8mm spacing and 0.2mm fin thickness.

Keywords: Micro fin, Natural Convection, Plate fin.

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