Title : ( Enhancement of Heat transfer and Pressure drop in a Channel by grooving the Walls )
Authors: Javad Abolfazli Esfahani , amir parand ,
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Abstract
Surface heat transfer and friction coefficients of a channel with laminar air flow through it and with walls set to different constant temperatures have been investigated numerically. Validity of results investigated in a comparison with previous existing experimental data. Effect of two parameters, groove depth to channel height (e/H) and groove width to channel height (w/H) been investigated in different Reynolds numbers. The e/H ratio was between 0.5 and 0.8 and w/H ratio was between 1 and 2.5. Reynolds number of flow was set between 100 and 1760. Using grooves on a channel wall causes an increase in local and global nusselt numbers of it but also causes a pressure penalty too. It is necessary to investigate the conjugate effect of heat transfer improvement and increased pressure drop to see if a method is efficient or not. The results have been compared to find the best efficient configuration of placing grooves.
Keywords
, Enhanced heat transfer, grooved channel, Energy consuming optimization
@inproceedings{paperid:1024516,
author = {Abolfazli Esfahani, Javad and Parand, Amir},
title = {Enhancement of Heat transfer and Pressure drop in a Channel by grooving the Walls},
booktitle = {The Second TSME International Conference on Mechanical Engineering},
year = {2011},
location = {Krabi},
keywords = {Enhanced heat transfer; grooved channel; Energy consuming optimization},
}
%0 Conference Proceedings
%T Enhancement of Heat transfer and Pressure drop in a Channel by grooving the Walls
%A Abolfazli Esfahani, Javad
%A Parand, Amir
%J The Second TSME International Conference on Mechanical Engineering
%D 2011
