Experimental investigation of thermal structure and convection heat transfer from an array of perforated fins with one cross opening

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Abstract

In this study attempt is made to study convection heat transfer from a new type of perforated fins with cross perforations using experimental measurement. Using the present experimental studies, thermal performance of such perforated fins are determined and discussed. Comparison of convection heat transfer from the present array of perforated fins with the previous studies of perforated fins illustrates better heat transfer performance of the new arrangement and its higher convection heat transfer coefficient. Quantitatively, using the present fin arrangement increases the heat transfer coefficient and the fin effectiveness for about 50% with respect to the previous reported perforated arrangement. Comparison of the fins surface temperature measured by thermograph imager depict higher surface temperature for the target fin with respect to other studied perforated arrangements. Futhermore, the present experimental results can be used as bench case to validate numerical simulations of thermal structure and temperature distribution around the perforated fins.

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References

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Journal of Solid and Fluid Mechanics
Volume 5, Issue 3 - Serial Number 3
September and October 2015
Pages 197-208

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