Using natural convection mechanism of nanofluid for cooling an embedded hot plate in corner of a square enclosure: A numerical simulation

Cao, Yan and Mansir, Ibrahim B. and Mouldi, Abir and Gepreel, Khaled A. and Dahari, M. and Le, Tri Hieu and Badran, Mohamed Fathy and Nguyen, Van Nhanh and Wae-hayee, Makatar (2022) Using natural convection mechanism of nanofluid for cooling an embedded hot plate in corner of a square enclosure: A numerical simulation. Case Studies in Thermal Engineering, 33. ISSN 2214-157X, DOI https://doi.org/10.1016/j.csite.2022.101926.

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Abstract

Cooling is one of the most important issues for thermal engineers, and the use of simple and inexpensive methods greatly contributes to the efficiency of a thermal system. Also, in recent decades, the development of numerical methods and the advent of computers has led to the emergence of computer simulations. In present numerical study, the natural convection mechanism of nanofluid based on water and titanium oxide (TiO2) were simulated by computational fluid dynamics (CFD) to cool a hot inclined plate inside a square chamber. The considerable innovation in this study is the nanofluids properties depending on temperature, nanoparticle diameter and volume fraction and the cavity is able to incline. The impacts of two Rayleigh numbers (102 < Ra < 104), four volume fractions (0 < phi < 0.06) and four inclined angles (0 < gamma < 45) were analyzed on the average convective heat transfer coefficient. This study briefly demonstrated that the optimum values of volume fraction for Rayleigh numbers 102and 104 were 0.06 and 0.02, respectively. Moreover, increasing the volume fraction to 6% in low Reynolds number improved the average convective heat transfer coefficient by 21%.

Item Type: Article
Funders: King Khalid University (R.G.P.2/14/43), Universiti Malaya (GPF054A-2020), Taif University, Taif, Saudi Arabia (TURSP-2020/16)
Uncontrolled Keywords: Natural convection; Nanofluid; Titanium oxide; Cooling system; Thermal engineer
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Sep 2023 00:16
Last Modified: 14 Sep 2023 00:16
URI: http://eprints.um.edu.my/id/eprint/42914

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