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In relation to this article, we declare that there is no conflict of interest.
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Received August 24, 2021
Accepted January 17, 2022
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Temperature nonuniformity management in heat sinks through applying counter-flow design complex minichannels

Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran 1Department of Mechanical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran 2Department of Mechanical Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran 3Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, P. R. China
mkhaliabadi@gmail.com, mkhaliabadi@iau-shahrood.ac.ir
Korean Journal of Chemical Engineering, June 2022, 39(6), 1436-1449(14), 10.1007/s11814-022-1071-x
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Abstract

Thanks to the electronic industrial revolution, miniaturization, which is a trend to manufacture smaller products and devices, has been extended to hardware components. In these devices, the heat flux magnitude increases due to the smaller surface area. Therefore, heat dissipation and temperature uniformity are crucial issues that must be managed precisely, otherwise destructive effects on system performance and device lifespan are unavoidable. Heat sinks are efficient equipment utilized to solve these dire consequences. In this study, to improve the temperature uniformity of electronic components, novel minichannels, including straight walls with wavy fins (SWS) and wavy walls with straight fins (WSW), were examined with counter-flow patterns. The observations imply that these novel minichannels bring 18.1-40.3% decrease of the base temperature under the heat flux of 100 kW m-2. It is also revealed that using the novel minichannels can increase the temperature uniformity up to 93.1%. In addition, overall hydrothermal performance can be enhanced as high as 1.64 under the pumping power of 0.0374W. It was also found that the use of WSW models leads to lower magnitudes of pumping power compared to SWS models. It is concluded that applying the proposed minichannels could be an efficient approach to manage temperature non-uniformity in heat sinks.

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