AC and Lightning Impulse Breakdown Voltages of Natural Ester Based Fullerene Nanofluids

Beroual A., DÜZKAYA H.

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, cilt.28, sa.6, ss.1996-2003, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 6
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1109/tdei.2021.009772
  • Dergi Adı: IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1996-2003
  • Anahtar Kelimeler: AC breakdown voltage, lightning impulse (LI) breakdown voltage, nanofluids, natural ester, fullerene (C60) nanoparticles, normal distribution, OLIVE OIL
  • Gazi Üniversitesi Adresli: Evet

Özet

This paper is aimed at the variation of AC and lightning impulse (LI) breakdown voltages of samples enriched with fullerene (C60) nanoparticles (NPs) of natural ester, which stand out as an alternative to mineral oils. C60 nanofluids with long-term stability and good dielectric properties are examined in this study on five samples for concentrations of NPs ranging 0.05 to 0.4 g/L concentrations. The AC and LI breakdown voltage measurements of each sample are repeated thirty times and the conformity of these measurements of the normal distribution is tested with the Shapiro-Wilk test. Conformity of all samples to normal distribution is accepted by this test and withstand voltages are calculated at 1%, 10% and 50% breakdown probabilities. The AC breakdown voltage performances of 0.3 and 0.4 g/L C60 nanofluids are increased compared to natural ester. This increase rate is 5.1% and 7.8%, respectively. The withstand voltages at 1% and 10% breakdown probabilities increase by 20.2% and 13.2% compared to natural ester at 0.4 g/L C60 nanofluid. 0.1 g/L C60 nanofluid has 8.2% better performance than natural ester at LI breakdown voltages. Withstand voltages of 1% and 10% probability of this nanofluid are 6.5% and 7.7% higher than natural ester, respectively. These measurement results show that C60 doped nanofluids can meet performance requirements in power system equipment with high power demands.