Conductive panel cooling by using coupled effects of nano-jet impingement, double rotating cylinders and magnetic field under cross-flow

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dc.contributor.authorSelimefendigil F.
dc.contributor.authorOztop H.F.
dc.date.accessioned2024-07-22T08:01:39Z
dc.date.available2024-07-22T08:01:39Z
dc.date.issued2024
dc.description.abstractPurpose: This study aims to examine the effects of cross-flow and multiple jet impingement on conductive panel cooling performance when subjected to uniform magnetic field effects. The cooling system has double rotating cylinders. Design/methodology/approach: Cross-flow ratios (CFR) ranging from 0.1 to 1, magnetic field strength (Ha) ranging from 0 to 50 and cylinder rotation speed (Rew) ranging from −5,000 to 5,000 are the relevant parameters that are included in the numerical analysis. Finite element method is used as solution technique. Radial basis networks are used for the prediction of average Nusselt number (Nu), average surface temperature of the panel and temperature uniformity effects when varying the impacts of cross-flow, magnetic field and rotations of the double cylinder in the cooling channel. Findings: The effect of CFR on cooling efficiency and temperature uniformity is favorable. By raising the CFR to the highest value under the magnetic field, the average Nu can rise by up to 18.6%, while the temperature drop and temperature difference are obtained as 1.87°C and 3.72°C. Without cylinders, magnetic field improves the cooling performance, while average Nu increases to 4.5% and 8.8% at CR = 0.1 and CR = 1, respectively. When the magnetic field is the strongest with cylinders in channel at CFR = 1, temperature difference (ΔT) is obtained as 2.5 °C. The rotational impacts on thermal performance are more significant when the cross-flow effects are weak (CFR = 0.1) compared to when they are substantial (CFR = 1). Cases without a cylinder have the worst performance for both weak and severe cross-flow effects, whereas using two rotating cylinders increases cooling performance and temperature uniformity for the conductive panel. The average surface temperature lowers by 1.2°C at CFR = 0.1 and 0.5°C at CFR = 1 when the worst and best situations are compared. Originality/value: The outcomes are relevant in the design and optimization-based studies for electric cooling, photo-voltaic cooling and battery thermal management. © 2023, Emerald Publishing Limited.
dc.identifier.DOI-ID10.1108/HFF-09-2023-0532
dc.identifier.issn09615539
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11537
dc.language.isoEnglish
dc.publisherEmerald Publishing
dc.subjectAtmospheric temperature
dc.subjectCooling
dc.subjectCylinders (shapes)
dc.subjectJets
dc.subjectMagnetic field effects
dc.subjectRadial basis function networks
dc.subjectSurface temperature
dc.subjectBase function
dc.subjectCooling performance
dc.subjectCross flows
dc.subjectFlow ratios
dc.subjectMagnetic-field
dc.subjectNanofluids
dc.subjectRadial base function
dc.subjectRadial basis
dc.subjectRotating cylinders
dc.subjectTemperature uniformity
dc.subjectFinite element method
dc.titleConductive panel cooling by using coupled effects of nano-jet impingement, double rotating cylinders and magnetic field under cross-flow
dc.typeArticle

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