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Numerical simulation of microchannel double-pipe heat exchanger with ribs

Adebayo, J. K. and Oyedepo, Sunday Olayinka and Petinrin, M. O. and Dare, A. A. and Nwaokocha, C. N. and Layeni, A. T. and Fayomi, O. S. I and Dirisu, J. O. and Kilanko, O. O (2022) Numerical simulation of microchannel double-pipe heat exchanger with ribs. AIP Conference, 2437 (1).

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This study numerically investigates a double pipe heat exchanger with triangle and rectangle rib. The simulation is performed using ANSYS package, considering turbulent flow and k-e turbulence model. The working fluid is water in both tube and annulus and the flow arrangement is counter flow. The results show that, the heat transfer of triangle rib and rectangle rib are higher than that of normal DPHE and as the Reynolds number is increasing heat transfer, coefficient of heat transfers and Nusselt number are also increasing. Triangle rib has thermal performance factor of 0.9786 at Re of 40000 and rectangle rib has 1.0290 at Re of 30000. Furthermore, total heat transfer of DPHE with triangle rib is 33% better than normal DPHE at Re of 40000 and that of rectangle rib is 45%better at Re of 40000.

Item Type: Article
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: AKINWUMI
Date Deposited: 28 Feb 2023 11:16
Last Modified: 28 Feb 2023 11:16

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