Analysis of impulse withstand voltage of ester-based nanofluids
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F24%3APU152265" target="_blank" >RIV/00216305:26220/24:PU152265 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S246802302401188X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S246802302401188X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfin.2024.105032" target="_blank" >10.1016/j.surfin.2024.105032</a>
Alternative languages
Result language
angličtina
Original language name
Analysis of impulse withstand voltage of ester-based nanofluids
Original language description
Ester-based nanofluids constitute an effective ecological alternative to petroleum-derived dielectric fluids for electrical engineering industry. Pulse induced dielectric breakdown is a key cause of power device failure. In this paper, we deal with the lightning impulse breakdown voltage (LI BDV) in natural and synthetic ester-based (NE and SE) nanofluids with various concentrations of magnetite (Fe3O4) and fullerene (C-60) nanoparticles. The nanofluids show a decrement in positive polarity LI+ BDV as compared with the base ester. Negative polarity LI- BDV in the nanofluids is similar to that of base oils. Weibull statistical distributions are applied to analyse the results at different cumulative probabilities of 1 %, 10 %, and 50 %. Natural ester with C-60 nanoparticles shows higher positive LI+ BDV values at a low probability level, while the negative LI- BDV reaches higher values at higher probability levels. The decreased LI BDV in NE and SE due to the magnetite nanoparticles are attributed to the nanoparticle clustering and percolation. The tendency of C-60 nanoparticles to enhance the LI BDV in NE but not in SE is interpreted in the view of the nanoparticle concentration and oil's viscosity effect on the streamer branching and propagation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SURFACES AND INTERFACES
ISSN
2468-0230
e-ISSN
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Volume of the periodical
Volume 53
Issue of the periodical within the volume
105032
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
13
Pages from-to
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UT code for WoS article
001313579000001
EID of the result in the Scopus database
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