The experimental study on the potential of waste cooking oil as a new transformer insulating oil

Abu Bakar, Norazhar and Deraman, Muhammad Nazori and Ab Aziz, Nur Hakimah and Sutan Chairul, Imran (2020) The experimental study on the potential of waste cooking oil as a new transformer insulating oil. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 69 (1). pp. 74-84. ISSN 2289-7879

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Abstract

Power transformers use mineral oil as an insulating liquid due to its outstanding dielectric properties. The poor biodegradability and toxicity of mineral oil have increased the interest in the use of a more environmentally friendly product such as ester-based oil. Generally, natural ester insulating oils (NEI) have a higher flash point and breakdown voltage compared to existing mineral oils. However, the higher price of NEI is the main obstacle to widely applied in power transformers. Therefore, alternative cheaper feedstock processing is required. This paper proposed waste cooking oil (WCO) as a potential alternative to the existing transformer insulating oil. The used of WCO promotes the optimal consumption of plant-based resources and more efficient waste management. Transesterification method is performed to remove the free fatty acids in the WCO and reduce the viscosity. The transesterification process is based on the chemical modification reaction between WCO, methyl alcohol (methanol) and sodium hydroxide (NaOH) catalyst lye that produces waste cooking oil methyl ester (WCOME). Chemical and electrical properties i.e. water content, acidity and breakdown voltage of the developed WCOME are compared with the existing WCO according to IEEE Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers (IEEE C57.147).

Item Type:	Article
Uncontrolled Keywords:	Acidity, Waste cooking oil methyl ester, Transesterification
Divisions:	Faculty of Electrical Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	09 Dec 2020 09:23
Last Modified:	09 Jun 2023 11:48
URI:	http://eprints.utem.edu.my/id/eprint/24556
Statistic Details:	View Download Statistic

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