Experimental and Numerical Investigations of Forced Convection in Tube-Type Heat Exchanger

Osueke, C.O. and Ikpotokin, I. (2014) Experimental and Numerical Investigations of Forced Convection in Tube-Type Heat Exchanger. International Journal of Engineering Research and Development, 10 (6). pp. 22-31. ISSN 2278-067X

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Experimental and numerical studies of forced convectionheat transfer in tube-type heat exchanger consisting four columns of five cylindrical tubes arranged so that every second column is displaced (i.estaggered configuration) were carried out. Experiments were conductedtodeterminethe effects of flow pattern on heat transfer and pressure dropwithin the heat exchanger and the heat transfer dependence on position. In the analytical approach, the dimensionless representationsof the rates of forced convection (i.eNusselt number) and pressure loss(i.e drag coefficient) were obtained. The numerical simulation is carried out using FEMLAB 3.0 and the results compared favourably with the experimental. The flow visualization featuressuch as boundary layer developments between tubes, formation of vortices, local variations of the velocity and temperature distribution within the heat transfer device were revealed by numerical solution. The resultsshowed that the average Nusselt number increases with increasing Reynolds number and the heated element position in the bank. The drag coefficient decrease with increasing Reynolds numbers.

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Date Deposited: 13 Jul 2017 13:10
Last Modified: 13 Jul 2017 13:10
URI: https://eprints.lmu.edu.ng/id/eprint/835

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