Nanoparticles for next-generation transformer insulating fluids: A review

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dc.contributor.authorKarataş, Mehmet
dc.contributor.authorBiçen, Yunus
dc.date.accessioned2023-07-26T11:57:52Z
dc.date.available2023-07-26T11:57:52Z
dc.date.issued2022
dc.departmentDÜ, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractTransformers are important components in electrical networks and dielectric fluids play a decisive role in the quality of the insulation systems in these transformers. This review focuses on dielectric nanofluids, which in recent years have come to the fore as innovative electrical insulating fluids. In this context, all studies on insulating base fluids and nanoparticle types have discussed in depth the preparation and stabilization of dielectric nanofluids, their dielectric improvement, viscosity changes, thermal conductivity levels, dissipation factors, partial discharge phenomena, physicochemical properties, aging characteristics, and paper-nanofluid interactions. An average improvement of around 21% was found for the level of breakdown voltage as well as for the lightning impulse breakdown voltage. However, the average enhancement value for positive polarity was 20% for dielectric nanofluids, with an average value of around 10% for the increase in viscosity. Thermal conductivity is higher in nanofluids than in base insulating fluids, which somewhat compensates for the negative situation in viscosity, with the average enhancement in thermal conductivity at around 6%. In related studies, among the physicochemical properties of dielectric nanofluids, a remarkable increase (10% on average) was observed in the flash point level. Although not enough studies have been conducted on the interaction of nanofluids with the cellulosic insulation material used in transformers, pioneering experimental studies have given positive results, especially for aging issues. Dielectric nanofluids have many advantages over conventional insulating fluids, and the ongoing application challenges for future studies are also discussed in this review.en_US
dc.identifier.doi10.1016/j.rser.2022.112645
dc.identifier.issn1364-0321
dc.identifier.issn1879-0690
dc.identifier.scopus2-s2.0-85132806815en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.rser.2022.112645
dc.identifier.urihttps://hdl.handle.net/20.500.12684/13333
dc.identifier.volume167en_US
dc.identifier.wosWOS:000884777700002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorBiçen, Yunus
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofRenewable & Sustainable Energy Reviewsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz$2023V1Guncelleme$en_US
dc.subjectNanoparticle; Insulating Fluid; Nanofluid; Transformer; Dielectric; Breakdown; Heat Transferen_US
dc.subjectAc Breakdown Voltage; Oil-Based Nanofluids; Heat-Transfer Enhancement; Natural Ester; Dielectric-Properties; Thermal-Conductivity; Dispersion Stability; Cooling Performance; Hybrid Nanofluids; Partial Dischargeen_US
dc.titleNanoparticles for next-generation transformer insulating fluids: A reviewen_US
dc.typeReview Articleen_US

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