Comparison of Polarization Phenomena and Changes in Relative Permittivity in Mineral- and Ester-Based Nanofluids

Show simple item record
dc.contributor.authorMokrá, Zdislava
dc.contributor.authorTrnka, Pavel
dc.contributor.authorMichal, Ondřej
dc.contributor.authorHornak, Jaroslav
dc.contributor.authorSláma, Pavel
dc.date.accessioned2026-04-18T18:05:44Z
dc.date.available2026-04-18T18:05:44Z
dc.date.issued2025
dc.date.updated2026-04-18T18:05:44Z
dc.description.abstractTwo different phenomena were observed in nanofluids with different oil-based fluids. While the relative permittivity increases in mineral oil-based oxide nanofluids, the opposite effect is seen in ester nanofluids. This paper describes the relaxation times and polarizations in pure oil samples and nanofluids, using Havriliak-Negami formula, a mathematical explanation of this phenomenon is attempted. An experiment was conducted where pure samples of the mineral oil Nynas Lyra, the natural ester rapeseed oil, and synthetic ester oil MIDEL 7131, and then their nanofluids with SiO2 additive were measured. The measurements were carried out using Broadband dielectric spectroscopy as a function of frequency and temperature.en
dc.format4
dc.identifier.doi10.1109/ICDL63868.2025.11068218
dc.identifier.isbn978-1-66547-758-1
dc.identifier.issn2153-3725
dc.identifier.obd43947243
dc.identifier.orcidMokrá, Zdislava 0009-0004-1914-0852
dc.identifier.orcidTrnka, Pavel 0000-0002-1122-120X
dc.identifier.orcidMichal, Ondřej 0000-0003-0586-3799
dc.identifier.orcidHornak, Jaroslav 0000-0001-7237-4093
dc.identifier.orcidSláma, Pavel 0009-0003-0372-3853
dc.identifier.urihttp://hdl.handle.net/11025/67690
dc.language.isoen
dc.project.IDSGS-2024-008
dc.publisherIEEE
dc.relation.ispartofseries23rd IEEE International Conference on Dielectric Liquids, ICDL 2025
dc.subjectester based nanofluiden
dc.subjectmineral based nanofluiden
dc.subjectbroadband dielectric spectroscopyen
dc.subjectpolarizationen
dc.subjectrelative permittivityen
dc.titleComparison of Polarization Phenomena and Changes in Relative Permittivity in Mineral- and Ester-Based Nanofluidsen
dc.typeStať ve sborníku (D)
dc.typeSTAŤ VE SBORNÍKU
dc.type.statusPublished Version
local.files.count1*
local.files.size553641*
local.has.filesyes*
local.identifier.eid2-s2.0-105011957862

Files

Original bundle
Showing 1 - 1 out of 1 results
No Thumbnail Available
Name:
Comparison_of_Polarization_Phenomena_and_Changes_in_Relative_Permittivity_in_Mineral-_and_Ester-Based_Nanofluids.pdf
Size:
540.67 KB
Format:
Adobe Portable Document Format
Download
License bundle
Showing 1 - 1 out of 1 results
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Conference papers (RICE)