Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant

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dc.contributor.authorFetuga, I.A.
dc.contributor.authorOlakoyejo, O.T.
dc.contributor.authorEwim, D.R.E.
dc.contributor.authorGbegudu, J.K.
dc.contributor.authorAdelaja, A.O.
dc.contributor.authorAdewumi, O.O.
dc.date.accessioned2022-09-07T09:30:07Z
dc.date.available2022-09-07T09:30:07Z
dc.date.issued2022
dc.descriptionScholarly articleen_US
dc.description.abstractIn this study, a 3D computational fluid dynamics (CFD) study was conducted in ANSYS (FLUENT) to examine the thermal performance of an automotive radiator using conventional and hybrid coolant with a Al2O3 nanoparticles (NPs) . A hybrid mixture of pure water H2O and ethylene glycol (EG) in the volumetric proportion of 50:50, was coupled with Al2O3 nanoparticles with volume fraction of 1% - 4% at different inlet temperatures. The Reynolds number was varied from 4 000 to 8 000. From the numerical results obtained, it was found that an increase in nanoparticle volume fraction led to an increase in heat transfer rate and pressure drop in the automotive radiator. Also, it was found that at a Reynolds number of 8 000, using the hybrid mixture as a base fluid increased the Nusselt number by 55.6% in contrast to pure water. However, further suspension of 4% Vol. Al2O3 nanoparticles into existing hybrid mixture increased the Nusselt number by 70%. Furthermore, it was found that an increase in the inlet temperature of the radiator caused more enhancement in the heat transfer rate. For Re=8 000 4% vol. Al2O3-water nanofluid, the heat transfer rate was enhanced by 54.57% when increasing the inlet temperature from 60oC to 90oC. Therefore, it is recommended that automobile radiators be operated at a high inlet temperature with nanofluid containing a very high concentration of suitable nanoparticles and an anti-freezing agent in an adequate volumetric proportion to achieve better thermal performance.en_US
dc.identifier.citationFetuga, I. A., Olakoyejo, O. T., Ewim, D. E., Gbegudu, J. K., Adelaja, A. O. and Adewumi, O. O. (2022). Computational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolant, The Journal of Engineering and Exact Sciences, 8 (2), 13977-01een_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/11341
dc.language.isoenen_US
dc.publisherFederal University of Viçosa, Brazilen_US
dc.subjectHeat enhancementen_US
dc.subjectAutomotive Radiator,en_US
dc.subjectEthylene glycolen_US
dc.subjectSimulationen_US
dc.subjectResearch Subject Categories::TECHNOLOGY::Engineering mechanicsen_US
dc.titleComputational investigation of thermal behaviors of the automotive radiator operated with water/anti-freezing agent nanofluid based coolanten_US
dc.typeArticleen_US
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