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Dielectric Performance of Natural- and Synthetic-Ester-Based Nanofluids with Fullerene Nanoparticles

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 28 Dec 2022Publisher:MDPI AGJournal:Energies, volume 16, page 343 (eissn: 1996-1073,

Authors: Miloš Šárpataky; Juraj Kurimský; Michal Rajňák; Michal Krbal; Marek Adamčák;

doi: 10.3390/en16010343

Dielectric Performance of Natural- and Synthetic-Ester-Based Nanofluids with Fullerene Nanoparticles

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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.

Related Organizations

Technical University of Košice
Slovakia
Brno University of Technology
Czech Republic
Technical University of Košice
Slovakia

Keywords

Technology, nanofluids, fullerene, T, nanofluids; esters; fullerene; breakdown voltage; dissipation factor; relative permittivity; volume resistivity, relative permittivity, breakdown voltage, dissipation factor, esters

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	5
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%