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ŠÁRPATAKY, M. KRBAL, M. KURIMSKÝ, J. RAJŇAK, M. ADAMČÁK, M.
Original Title
Dielectric Performance of Natural- and Synthetic-Ester-Based Nanofluids with Fullerene Nanoparticles
Type
journal article in Web of Science
Language
English
Original Abstract
According to the latest research, nanofluids as a possible future substitution for high-voltage equipment insulation have the potential to enhance the heat transfer and insulation properties of their base fluids. Dielectric properties are represented by breakdown strength (AC, DC, lightning) and dielectric performance as a set of quantities including dissipation factor, permittivity, and volume resistivity. In this study, natural and synthetic esters were mixed with C60 nanoparticles. Samples were examined for dissipation factor, relative permittivity, and volume resistivity at temperatures between 25 ◦C and 140 ◦C to monitor changes in dielectric performance with rising temperature, in accordance with IEC 60247. In addition, the samples were tested for AC breakdown voltage (using mushroom-like electrodes with a gap distance of 1 mm) and evaluated using the Weibull distribution statistical method. These measurements allowed complex evaluation of the examined mixtures and the determination of optimal concentration for each ester-based nanofluid.
Keywords
nanofluids; esters; fullerene; breakdown voltage; dissipation factor; relative permittivity; volume resistivity
Authors
ŠÁRPATAKY, M.; KRBAL, M.; KURIMSKÝ, J.; RAJŇAK, M.; ADAMČÁK, M.
Released
28. 12. 2022
Publisher
MDPI
Location
Basel
ISBN
1996-1073
Periodical
ENERGIES
Year of study
16
Number
343
State
Swiss Confederation
Pages from
1
Pages to
15
Pages count
URL
https://doi.org/10.3390/en16010343
BibTex
@article{BUT180600, author="Miloš {Šárpataky} and Michal {Krbal} and Juraj {Kurimský} and Michal {Rajňak} and Marek {Adamčák}", title="Dielectric Performance of Natural- and Synthetic-Ester-Based Nanofluids with Fullerene Nanoparticles", journal="ENERGIES", year="2022", volume="16", number="343", pages="1--15", doi="10.3390/en16010343", issn="1996-1073", url="https://doi.org/10.3390/en16010343" }