Optimization of geometric configurations for enhanced thermal performance in microchannel finned plates
Department of Physics, School of Science, YBN University, Ranchi, Jharkhand, India.
Research Article
World Journal of Advanced Engineering Technology and Sciences, 2024, 12(02), 926–937.
Article DOI: 10.30574/wjaets.2024.12.2.0380
Publication history:
Received on 19 July 2024; revised on 26 August 2024; accepted on 29 August 2024
Abstract:
This study investigates the thermal performance of microchannel finned plates by comparing various geometric configurations and operating conditions. Twelve models (a to l) were evaluated by varying parameters such as fin height, fin spacing, and channel width, as well as operating factors like inlet velocity and heat flux. The results reveal that increasing the fin height and decreasing the fin spacing enhance heat transfer by expanding the surface area, though at the cost of increased pressure drops and higher pumping power requirements. Variations in channel width impact flow characteristics, with wider channels reducing temperature but potentially lowering convective efficiency. Higher inlet velocities improve convective cooling but increase pressure drops, while elevated heat fluxes lead to steeper temperature gradients. Model k was found to provide an optimal balance between heat transfer efficiency and pressure drop, while Model l’s novel fin geometry showed unique temperature distributions warranting further exploration. Temperature contours and volume renders demonstrated air temperature increases across the models, ranging from 4.78 K to 17.36 K, and surface heat flux measurements confirmed the significant influence of fin configuration on thermal performance. The findings offer valuable insights for optimizing the design of microchannel finned plates for enhanced heat transfer and effective thermal management in various applications.
Keywords:
Microchannel heat sink; Grey relational optimization; Surface heat flux; Surface Nusselt number; Optimization
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Copyright © 2024 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0