Impact of Geometrical Parameters on Heat Transfer Characteristics of SiO2-Water Nanofluid Flow through Rectangular Corrugated Channels

Elhadi Kh. Abugnah, Elhadi Kh. Abugnah and Wan Saiful-Islam Wan Salim, Wan Saiful-Islam Wan Salim and Abdulhafid M Elfaghi, Abdulhafid M Elfaghi (2023) Impact of Geometrical Parameters on Heat Transfer Characteristics of SiO2-Water Nanofluid Flow through Rectangular Corrugated Channels. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 104 (2). pp. 86-102. ISSN 2289-7879

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Official URL: https://doi.org/10.37934/arfmts.104.2.86102

Abstract

Design and performance of thermal devices are improved by optimizing their geometrical parameters. This study utilized numerical simulation to examine the heat transfer and flow properties of a rectangular corrugated channel at which nanofluid of silicon dioxide (SiO2) and water is flowing. It is determined how the height-to-width ratio (hc/W) and pitch-to-length ratio (pch/L) of a structure affect its thermal and hydraulic properties. The numerical simulations of flow include nanofluids with SiO2- to-water volume fractions of 8% is accomplished by employing the finite volume method (FVM) with SIMPLE algorithm for discretization of the governing equations and coupling of the pressure-velocity system while the k−ε turbulence model was employed to resolve turbulence. The results demonstrate that, in comparison to the (Pch/L) ratio, the (hc/W) ratio has a stronger influence on the enhancement of heat transfer. In reference to the values at minimum Re (Re = 10000), the ratio Pch/L = 0.05 offers the largest increase in Nuav over the Re range by 180.8%. At Reynolds number (Re) 30000, an increase in 99.5% of average Nusselt number (Nuav) is obtained when the (hc/W) ratio is increased from 0.0 to 0.05. The numerical results indicate that the hc/W of 0.05 with a Pch/L of 0.1075 are the optimum parameters and have shown significant improvement in thermal performance criteria (PEC).

Item Type:	Article
Uncontrolled Keywords:	Corrugated channels; nanofluids; heat transfer; pressure drop; CFD
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Mechanical and Manufacturing Engineering
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	17 Oct 2023 07:41
Last Modified:	17 Oct 2023 07:41
URI:	http://eprints.uthm.edu.my/id/eprint/10159

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