Evaluation of the Stability of Dielectric Nanofluids for Use in Transformers under Real Operating Conditions

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dc.contributor.author Primo Cano, Víctor Antonio
dc.contributor.author Pérez Rosa, Daniel
dc.contributor.author García de Burgos, María Belén
dc.contributor.author Cabanelas Valcárcel, Juan Carlos
dc.date.accessioned 2019-03-06T08:15:05Z
dc.date.available 2019-03-06T08:15:05Z
dc.date.issued 2019-01-23
dc.identifier.bibliographicCitation Primo, V.A., Pérez-Rosa, D., García, B., Cabanelas, J.C. (2019). Evaluation of the Stability of Dielectric Nanofluids for Use in Transformers under Real Operating Conditions. Nanomaterials, 9 (2), 143.
dc.identifier.issn 2079-4991
dc.identifier.uri http://hdl.handle.net/10016/28171
dc.description.abstract The application of nanotechnology to the electrical insulation of transformers has become a topic of interest in the last few years. Most authors propose the use of dielectric nanofluids, which are obtained by dispersing low concentrations of nanoparticles in conventional insulating liquids. Although a good number of works have demonstrated that dielectric nanofluids may exhibit superior dielectric properties than the base fluids, there is a key issue that still needs to be addressed, which is the long-term stability of those liquids. The studies about the stability of dielectric nanofluids fluids that have been published so far analyze the performance of the fluids under laboratory conditions which are far from the real working conditions the liquids would be subjected to when working inside a transformer. In this paper, an experimental study is presented that evaluates the stability of several dielectric nanofluids under realistic transformer operating conditions. As the study demonstrates, the stability of dielectric nanofluids depends strongly on the working temperature, on the materials applied to obtain the fluid, and on the manufacturing procedure, while other aspects, such as the interaction with other materials, are less relevant. Additional topics, such as the methods applied for evaluation of the stability and the physical properties of the dielectric nanofluids under test, are discussed in the paper as well.
dc.description.sponsorship This research was funded by the Spanish Ministry of Economy and Competitiveness. Grant numbers DPI2015-71219-C2-2-R and MAT2014-57557-R.
dc.format.extent 20
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Dielectric nanofluid
dc.subject.other Long-term stability
dc.subject.other Fe3O4
dc.subject.other Electrical insulation
dc.subject.other Power transformer
dc.title Evaluation of the Stability of Dielectric Nanofluids for Use in Transformers under Real Operating Conditions
dc.type article
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.3390/nano9020143
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2015-71219-C2-2-R
dc.relation.projectID Gobierno de España. MAT2014-57557-R
dc.type.version publishedVersion
dc.identifier.publicationissue 2
dc.identifier.publicationtitle Nanomaterials
dc.identifier.publicationvolume 9
dc.identifier.uxxi AR/0000022896
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