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Ass. Lect. Hesham Said Abd Elmonsif Ali :: Publications:

Effect of BT Nanoparticles on Dielectric and Thermal Properties of Transformer Oil
Authors: Diaa-Eldin A. Mansour;Essam A. Shaalan;Sayed A. Ward;Adel Z. El Dein;Hesham S. Karaman
Year: 2017
Keywords: Breakdown strength, dielectric properties, heat transfer coefficient, nanofluids, nanoparticles, thermal properties, transformer oil
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Aswan University
Local/International: International
Paper Link: Not Available
Full paper Hesham Said Abd Elmonsif Ali_Published Paper.pdf
Supplementary materials Not Available

In order to preserve the life time of oil transformers and to improve their performance, the transformer oil must play its role as insulating and cooling medium efficiently. Nanotechnology is an effective science used for improving the dielectric and thermal properties of the transformer oil. In this paper, barium titanate (BT) nanoparticles were mixed with the neat insulating oil by 0.01 g/L and 0.02 g/L concentration. Breakdown voltage and heat transfer coefficient were measured to excogitate the transformer oil dielectric and thermal properties, respectively. From the obtained results, for 0.01 g/L sample, it is noticed that BT enhances the thermal properties of the transformer oil by about 28.3% but, the dielectric properties were slightly increase by about 2%. The increasing of the BT nanoparticles concentration to 0.02 g/L achieves unsatisfied results due to the agglomeration and the sedimentation of BT particles into the oil.

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