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Statistical Analysis of AC Dielectric Strength of Natural Ester-Based ZnO Nanofluids

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  • Hidir Duzkaya

    (Department of Electrical-Electronic Engineering, Gazi University, Ankara 06560, Turkey
    Ecole Centrale de Lyon, University of Lyon, Ampere CNRS UMR 5005, 36 Avenue Guy Collongue, 69134 Ecully, France)

  • Abderrahmane Beroual

    (Ecole Centrale de Lyon, University of Lyon, Ampere CNRS UMR 5005, 36 Avenue Guy Collongue, 69134 Ecully, France)

Abstract

Due to environmental concerns and increased energy demand, natural esters are among the alternatives to mineral oils in transformers. This study examines the electrical behavior of natural ester-based ZnO nanofluids at different concentrations in the range of 0.05–0.4 g/L. AC breakdown voltages are measured in a horizontally positioned sphere–sphere electrode system according to IEC 60156 specifications. The measurement data are analyzed using Weibull and normal distribution functions. Breakdown voltages with 1%, 10% and 50% probability are also estimated, these probabilities being of great interest for the design of power electrical components. Experimental results show that AC breakdown voltage increases with the concentration of ZnO nanoparticles, except for the concentration of 0.05 and 0.4 g/L of ZnO. Moreover, breakdown voltages at 1% and 10% probability increase by 22.7% and 13.2% when adding 0.1 g/L ZnO to natural ester, respectively.

Suggested Citation

  • Hidir Duzkaya & Abderrahmane Beroual, 2020. "Statistical Analysis of AC Dielectric Strength of Natural Ester-Based ZnO Nanofluids," Energies, MDPI, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:99-:d:468976
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    References listed on IDEAS

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    1. Abderrahmane Beroual & Usama Khaled & Phanuel Seraphine Mbolo Noah & Henry Sitorus, 2017. "Comparative Study of Breakdown Voltage of Mineral, Synthetic and Natural Oils and Based Mineral Oil Mixtures under AC and DC Voltages," Energies, MDPI, vol. 10(4), pages 1-17, April.
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    Cited by:

    1. Hocine Khelifa & Eric Vagnon & Abderrahmane Beroual, 2023. "Effect of Fullerene and Graphene Nanoparticles on the AC Dielectric Strength of Natural Ester," Energies, MDPI, vol. 16(4), pages 1-11, February.
    2. Dariusz Zmarzły & Paweł Frącz, 2021. "Measurement of Dielectric Liquid Electrification in the Shuttle System with Two Parallel Electrodes," Energies, MDPI, vol. 14(4), pages 1-16, February.
    3. Samson Okikiola Oparanti & Ungarala Mohan Rao & Issouf Fofana, 2022. "Natural Esters for Green Transformers: Challenges and Keys for Improved Serviceability," Energies, MDPI, vol. 16(1), pages 1-23, December.
    4. Miloš Šárpataky & Juraj Kurimský & Michal Rajňák & Michal Krbal & Marek Adamčák, 2022. "Dielectric Performance of Natural- and Synthetic-Ester-Based Nanofluids with Fullerene Nanoparticles," Energies, MDPI, vol. 16(1), pages 1-15, December.

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