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Simulation of the electrical conduction of cyclohexane with TiO2 nanoparticles
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-8173-8765
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. ABB Corporate Research, Sweden.ORCID iD: 0000-0002-6375-6142
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0001-7269-5241
2014 (English)In: Proceedings of the 2014 IEEE 18th International Conference on Dielectric Liquids, ICDL 2014, IEEE , 2014, 6893119- p.Conference paper, Published paper (Refereed)
Abstract [en]

Nanoparticles mixed with transformer oil can potentially increase the breakdown strength of the base liquid. Unfortunately, the basic physical mechanisms leading to such improvement are still not clear. This paper implements two existing theories to model the electrical conduction of cyclohexane with TiO2 nanoparticles in a needle to plane configuration. The generation and drift of carriers in the liquid are simulated by coupling the continuity equations for electrons, positive ions, negative ions, and nanoparticles with Poisson's equation for the electric field. The current-voltage characteristics are simulated and compared with the case of pure cyclohexane. The nanoparticles are modeled as either absorbers of electrons or as source of shallow traps in the fluid, according to the existing theories. The simulations show that the considered theories predict no significant effect of nanoparticles added to cyclohexane on the conduction current from a negative point electrode in steady state or under transient conditions.

Place, publisher, year, edition, pages
IEEE , 2014. 6893119- p.
Series
IEEE International Conference on Dielectric Liquids, ISSN 2153-3725
Keyword [en]
conduction process, cyclohexane, Nanofluid, titania
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-157951DOI: 10.1109/ICDL.2014.6893119ISI: 000360485100050Scopus ID: 2-s2.0-84907894775ISBN: 978-1-4799-2063-1 (print)OAI: oai:DiVA.org:kth-157951DiVA: diva2:773658
Conference
2014 IEEE 18th International Conference on Dielectric Liquids, ICDL 2014, 29 June 2014 through 3 July 2014, Bled, Slovenia
Funder
StandUp
Note

QC 20150623

Available from: 2014-12-19 Created: 2014-12-18 Last updated: 2015-09-29Bibliographically approved

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Aljure, MauricioBecerra, MarleyJonsson, B. Lars G.

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