Heat transfer efficiency optimization of a multi-nozzle micro-channel heat sink utilizing response surface methodology

Le, Huu Son and Galal, Ahmed M. and Alhamrouni, Ibrahim and Aly, Ayman A. and Abbas, Mohamed and Saidi, Abdelaziz Salah and Truong, Thanh Hai and Dahari, Mahidzal and Wae-hayee, Makatar (2022) Heat transfer efficiency optimization of a multi-nozzle micro-channel heat sink utilizing response surface methodology. Case Studies in Thermal Engineering, 37. ISSN 2214-157X, DOI https://doi.org/10.1016/j.csite.2022.102266.

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Optimum heat transfer in modern micro-channel heat sinks (MCHSs) plays a considerable role in ameliorating the efficiency and power of these devices. The response surface methodology (RSM) is one of the recently developed techniques to study and optimize the thermal and hydraulic behaviors of the MCHSs. In the current investigation, a multi-nozzle MCHS with circular fins on both sidewalls of the micro-channels was elected to analyze. The RSM method predicted the Nusselt number (Nu) of the MCHS and pressure drop (Delta P) of the coolant (the responses of the model). The diameter, the longitudinal pitch, and the transverse pitch of the circular fins were considered as the independent variables. These variables were changed in the ranges of 0.02 0.06 mm (diameter), 0.1 0.4 mm (longitudinal pitch), and 0.1 0.2 mm (transverse pitch). The impact of changing the mentioned variables on Nu and Delta P of the coolant to achieve the higher cooling capacity was studied. At first, Nu and Delta P values were calculated by the numerical procedure and then predicted by the RSM. Comparing the values derived by the numerical and the RSM models, it was observed that the values predicted by the RSM were close to the ones calculated by the numerical simulation. The RSM model with the coefficient of determination of 97.51% and 98.74% for Nu and Delta P could predict these responses accurately.

Item Type: Article
Funders: Deanship of Scientific Research at King Khalid University (KKU), R.G.P.2/133/43, Faculty of Automotive Engineering, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam, Universiti Kuala Lumpur, UniKL/CoRI/UER20003, Taif University Researchers Supporting Project, Taif University, Taif, Saudi Arabia, TURSP-2020/77
Uncontrolled Keywords: Multi-nozzle micro-channel heat sink; Circular fin; Optimization; Response surface methodology; Heat transfer efficiency
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Nov 2023 08:57
Last Modified: 22 Nov 2023 08:57
URI: http://eprints.um.edu.my/id/eprint/41618

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