Nanoparticle-enhanced dielectric oils for improved electrical insulation: Comparison of MgO, Al2O3, and SiO2-based dielectric nanofluids

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dc.authoridbicen, yunus/0000-0001-8712-2286;
dc.contributor.authorKaratas, Mehmet
dc.contributor.authorBicen, Yunus
dc.date.accessioned2025-10-11T20:48:24Z
dc.date.available2025-10-11T20:48:24Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThis study provides comprehensive and quantitative assessments of the electrical insulation, viscosity, thermal conductivity, flash point, acidity, and stability of dielectric nanofluids. In the experiment, naphthenic mineral oil was chosen as the base fluid. MgO, Al2O3, and SiO2 were preferred as nanoparticles. In the dielectric breakdown voltage (BDV) tests performed, increased values were observed at certain concentrations for each nanofluid, with the highest value in the SiO2-based nanofluid being 83.47 kV at a concentration rate of 0.05 g/L. Adding nanoparticles to the base oil increased the viscosity of all suspensions. Except for MgO-based dielectric nanofluid, the flash points of other nanofluids increased as compared to pure oil. Total acid number (TAN) values, on the other hand, increased for SiO2- and Al2O3-based nanofluids but decreased for MgO-based nanofluids. However, all values are quite below the standard limit of 0.25 mgKOH/g. The percentage transmittance values calculated from the ultraviolet and visible light (UV-vis) spectrophotometry results differed for each nanofluid. However, they were all lower than the base oil. In general, the results indicate that the use of dielectric nanofluids in electrical systems will be beneficial, provided that the problem of long-term stabilisation is solved.en_US
dc.description.sponsorshipTUBITAK (2210-D) [1649B022011141]en_US
dc.description.sponsorshipDuzce Universitesi [2021.06.03.1172]en_US
dc.description.sponsorshipTUBITAK (2210-D), Grant/Award Number: 1649B022011141; Duzce Universitesi, Grant/Award Number: 2021.06.03.1172en_US
dc.identifier.doi10.1049/hve2.12515
dc.identifier.endpage504en_US
dc.identifier.issn2397-7264
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-105003821347en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage493en_US
dc.identifier.urihttps://doi.org/10.1049/hve2.12515
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21902
dc.identifier.volume10en_US
dc.identifier.wosWOS:001412580900001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofHigh Voltageen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKA_WOS_20250911
dc.titleNanoparticle-enhanced dielectric oils for improved electrical insulation: Comparison of MgO, Al2O3, and SiO2-based dielectric nanofluidsen_US
dc.typeArticleen_US

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