Stability analysis and characterization of natural ester nanofluids for transformers

Autor:	Joyce Jacob, T. K. Sindhu, P. Preetha
Rok vydání:	2020
Předmět:	010302 applied physics Materials science Transformer oil Nanoparticle 01 natural sciences Nanofluid Thermal conductivity Chemical engineering 0103 physical sciences medicine Electrical and Electronic Engineering Turbidity Mineral oil medicine.drug
Zdroj:	IEEE Transactions on Dielectrics and Electrical Insulation. 27:1715-1723
ISSN:	1558-4135 1070-9878
DOI:	10.1109/tdei.2020.008445
Popis:	The present work aims at the preparation and characterization of a stable soybean natural ester nanofluid using alumina nanofiller, as an alternative to the conventional mineral oil. Stability using UV-Vis spectrophotometer and turbidity meter for various concentrations of nanofluids is reported and analyzed. Natural ester nanofluids with 0.02 wt% nanofiller concentration shows the highest stability. AC breakdown voltage shows a 21.5 and 27.9% increase for unfilled and 0.02 wt% nanofilled natural ester, respectively, when compared to the unfilled mineral oil. An improvement of 5.4 and 14.6% in the thermal conductivity can be observed for unfilled and 0.1 wt% nanofilled natural ester, respectively, when compared to that of unfilled mineral oil.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::68d1d15f521d1356ee3a58b998d03134 https://doi.org/10.1109/tdei.2020.008445 Zobrazit plný text záznamu