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Heat Transfer and Friction Factor Characteristics Roughened Channels - A Review

Author(s):

Md. Jasim Alam , SISTec, Bhopal, M.P, India; Dr. Rashmi Dwivedi, SISTec, Bhopal, M.P, India

Keywords:

Artificial RIB Roughness, Discrete RIB, Heat Transfer, Friction Factor

Abstract

Various Techniques have been used for warmth transfer enhancement in various engineering applications. In recent years, the excessive price of energy and material has resulted in an elevated effort aimed at finding more environment friendly warmness change technique. Providing a synthetic roughness on a warmth transferring surface is an effective passive heat switch method to decorate the rate of heat switch to fluid flow. Several research have been carried out to determine the impact of specific roughness aspect geometries on heat transfer and friction in roughened duct. Various investigations appropriate to awesome roughness geometries suggests that the enhancement in heat switch is accompanied by using considerable rise in pumping strength and therefore the thermo-hydraulic overall performance is an important parameter to figure out the quality applicable rib geometry for advantageous warmness transfer. It has concluded that many broken/discrete rib geometries make warmth transfer higher than the continuous ribs. The goal of this paper is to review quite a number studies, in which distinctive artificial discrete rib roughness elements are used to beautify the heat transfer price with little penalty of friction. The results of a number of rib parameters on warmth transfer and fluid flow processes are additionally discussed so that it can be helpful for other researchers to advocate a new graph of rib geometry which may additionally produce more heat switch with best viable thermo-hydraulic performance.

Other Details

Paper ID: IJSRDV6I80148
Published in: Volume : 6, Issue : 8
Publication Date: 01/11/2018
Page(s): 187-192

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