NDLI: Effects of BN nanoparticles on thermal conductivity and breakdown strength of vegetable oil

Content Provider	IEEE Xplore Digital Library
Author	Du, B.X. Li, X.L. Li, J. Tao, X.Y.
Copyright Year	2015
Description	Author affiliation: Key Lab. of Smart Grid of Educ. Minist., Tianjin Univ., Tianjin, China (Du, B.X.; Li, X.L.; Li, J.; Tao, X.Y.)
Abstract	Vegetable oil is based on natural ester oil, which is considered as the alternate natural source of traditional mineral insulating oil in electrical transformers. The oil applied in transformers performs dual functions of insulating and cooling materials. The purpose of this paper is to obtain a new type of nano-modified vegetable oil with both improved dielectric and thermal properties. Boron nitride (BN) nanoparticles with high thermal conductivity were dispersed into vegetable oil to form the nanooil. Thermal and dielectric properties of the samples before and after modification were measured. Temperature change and heat distribution of the samples in heating process were measured by a temperature sensor and an infrared thermal imager. Dielectric property experiments were performed in accordance with IEC standard. Relative permittivity, dissipation factor and electrical conductivity tests of the nanooil were conducted along with ac and dc breakdown strength in a range of temperature. It is found that the nanooil shows improved thermal and dielectric property compared with non-modified oil. Obtained results exhibit significant improvement in heat transfer process with increasing the concentration of BN nanoparticles.
Starting Page	476
Ending Page	479
File Size	963645
Page Count	4
File Format	PDF
ISSN	21609241
e-ISBN	9781479989034
DOI	10.1109/ICPADM.2015.7295312
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature Electric breakdown Temperature measurement Nanoparticles Conductivity Oil insulation Dielectrics dielectric property vegetable oil BN nanoparticles nanooil thermal property
Content Type	Text
Resource Type	Article

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