Augmentation of the Heat Transfer Performance of a Sinusoidal Corrugated Enclosure by Employing Hybrid Nanofluid

By Behrouz Takabi, S. Salehi. 2014

526 citations recorded by the source corpus.

This paper numerically examines laminar natural convection in a sinusoidal corrugated enclosure with a discrete heat source on the bottom wall, filled by pure water, Al2O3/water nanofluid, and Al2O3-Cu/water hybrid nanofluid which is a new advanced nanofluid with two kinds of nanoparticle materials. The effects of Rayleigh number (103≤Ra≤106) and water, nanofluid, and hybrid nanofluid (in volume concentration of 0% ≤ ϕ ≤ 2%) as the working fluid on temperature fields and heat transfer performance of the enclosure are investigated. The finite volume discretization method is employed to solve the set of governing equations. The results indicate that for all Rayleigh numbers been studied, employing hybrid nanofluid improves the heat transfer rate compared to nanofluid and water, which results in a better cooling performance of the enclosure and lower temperature of the heated surface. The rate of this enhancement is considerably more at higher values of Ra and volume concentrations. Furthermore, by applying the modeling results, two correlations are developed to estimate the average Nusselt number. The results reveal that the modeling data are in very good agreement with the predicted data. The maximum error for nanofluid and hybrid nanofluid was around 11% and 12%, respectively.

Subfields: Biomedical Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/f9f4de710efe65dbd96a007bff34ad2886a385f9

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Citations in the corpus

A review on hybrid nanofluids: Recent research, development and applications (2015, background): “Takabi and Salehi [101] numerically studied the laminar natural convection in a sinusoidal corrugated enclosure with a discrete heat source on the bottom wall, filled by Al2O3–Cu/water hybrid nanofluid and reported improvement of heat transfer rate compared to nanofluid (with the same volume concent”
Phase-change heat transfer of single/hybrid nanoparticles-enhanced phase-change materials over a heated horizontal cylinder confined in a square cavity (2017, background): “Takabi and Salehi [25] numerically investigated the effects of Al2O3–Cu/water hybrid nanofluids inside a sinusoidal corrugated enclosure.”
Free convection enhancement in an annulus between horizontal confocal elliptical cylinders using hybrid nanofluids (2016, background): “Takabi and Salehi [16] studied numerically the free convection in the laminar regime in a corrugated enclosure with a discrete heat source on the bottom wall, filled by Al2O3–Cu/water combined nanofluid.”
Numerical Investigation of Hydromagnetic Hybrid Cu – Al2O3/Water Nanofluid Flow over a Permeable Stretching Sheet with Suction (2016, methodology): “Augmentation of the heat transfer performance of a sinusoidal corrugated enclosure by employing hybrid nanofluid was portrayed by Takabi and Salehi [7].”