ISSN (online) : 2395 - 7549

 
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Experimentation on Copper Tube with Internal Threading for a Heat Exchanger Performance Enhancement


Author(s):

Kundan Gunwant More , G.H.R.I.EM.,Jalgaon; Amol Kailas Koli, G.H.R.I.EM.,Jalgaon; Amol Vikas Joshi, G.H.R.I.EM.,Jalgaon

Keywords:

Augmentation Technique of Heat Transfer, Passive Heat Transfer, Copper Tube, Internal Threaded Copper Tube, Reynolds Number, Nusselt Number

Abstract:

Experimental model has been carried out to study the effect of heat transfer, thermal enhancement factor and friction factor in a smooth copper tube and different test copper tube having internal threads of pitch ( p=3.5mm), with water as a working fluid media. For such experimentation purpose Reynolds number were varied in the range of 4000 to 8000. The copper tube (OD=38mm, ID=25mm, t=6.5mm) was subjected to constant and uniform heat flux. The experimental data obtained from test tube having different surface geometry i.e. by internal threading of different pitch (p=3.5mm) were compared with smooth circular copper tube. The effect of different surface geometry of inside copper tube i.e. by threading with varying pitch on thermal enhancement factor, heat transfer and friction factor were presented. In that experimental we also calculate Nusselt number, Prandtl number, pitch like heat transfer parameter. The heat transfer rate for copper tubes having internal threads was found to be much higher than smooth circular copper tube for a given value Reynolds number. So simply by changing the internal surface geometry the performance of circular section copper tube is improved.

Other Details:

Manuscript Id :J4RV3I1027
Published in :Volume : 3, Issue : 1
Publication Date: 01/04/2017
Page(s): 36-40
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