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Paper Title: Effect of Hexagonal Perforations on Convective Heat Transfer Coefficient in Forced Convection – Numerical Study
Authors Name: HARSHA H B
Unique Id: IJSDR1708020
Published In: Volume 2 Issue 8, August-2017
Abstract: Heat dissipation is important requirement in many applications, for which fins are used. Perforated fins offer increased heat transfer with reduction in weight and cost. In this project, effect of hexagonal perforations in a square fin is investigated for different values of heat flux and Reynolds numbers. Aluminium 5052 sheets having dimension of 150mm x 150mm with a thickness of 1mm are used for experimentation. Eight fins were mounted in the slots (1mm thick, 2mm wide and150mm long) provided circumferentially on a hollow cylinder. The cylinder is heated by using cylindrical electrical heater. Entire cylinder with fins is placed in a duct of square cross section 350mm x 350mm and 1.5m long. Air is induced in the duct by using fan. Experiments were conducted for three different heat flux values of 35.5, 55.5 and 80 and six different Reynolds number under steady state conditions. Results are expressed interms of variation of convective heat transfer coefficient and Nusselt number with Reynolds number. From the results, it is observed that, convective heat transfer coefficient and Nusselt number increases with increase in the Reynolds number. It is also observed that both convective heat transfer and Nusselt number for perforated fins are higher compared to plane fin. Analytical study is done using Ansys Fluent software for the validation of experimental results
Keywords: Hexagonal perforated fins
Cite Article: "Effect of Hexagonal Perforations on Convective Heat Transfer Coefficient in Forced Convection – Numerical Study", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.2, Issue 8, page no.142 - 145, August-2017, Available :http://www.ijsdr.org/papers/IJSDR1708020.pdf
Downloads: 000223215
Publication Details: Published Paper ID: IJSDR1708020
Registration ID:170711
Published In: Volume 2 Issue 8, August-2017
DOI (Digital Object Identifier):
Page No: 142 - 145
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631

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