Publication result detail

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

ŠÁRPATAKY, M.; KRBAL, M.; KURIMSKÝ, J.; RAJŇAK, M.; ADAMČÁK, M.

Original Title

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

English Title

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

Type

WoS Article

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.

English 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

Key words in English

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

Authors

ŠÁRPATAKY, M.; KRBAL, M.; KURIMSKÝ, J.; RAJŇAK, M.; ADAMČÁK, M.

RIV year

2023

Released

28.12.2022

Publisher

MDPI

Location

Basel

ISBN

1996-1073

Periodical

Energies

Volume

16

Number

343

State

Swiss Confederation

Pages from

1

Pages to

15

Pages count

15

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",
  url="https://doi.org/10.3390/en16010343"
}