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

Title:
Influence of Barium Titanate Nanoparticles Dispersion into Transformer Oil on its Dielectric Strength and Heat Transferability
Authors: Hesham S. Karaman;Diaa-Eldin A. Mansour;Sayed A. Ward;Adel Z. El Dein;Essam M. Shaalan
Year: 2018
Keywords: Breakdown strength, dielectric properties, heat transfer coefficient, nanofluids, nanoparticles, thermal properties, transformer oil
Journal: IEEJ
Volume: 8
Issue: 2
Pages: 2503-2506
Publisher: IEEJ
Local/International: International
Paper Link:
Full paper Hesham Said Abd Elmonsif Ali_Influence of Barium Titanate Nanoparticles Dispersion into Transformer Oil on its Dielectric Strength and Heat Transferability.pdf
Supplementary materials Not Available
Abstract:

In order to maintain 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 dispersed into the pure transformer 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 nanoparticles enhances the heat transfer coefficient of the transformer oil by about 28.3% compared with the pure transformer oil but, the dielectric breakdown strength were slightly increase by about 2% only. The increasing of the BT nanoparticles concentration to 0.02 g/L achieves unsatisfied results due to the agglomeration and the sedimentation of BT nanoparticles into the transformer oil.

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