Electrical characteristics of natural ester based nanofluid

Potivejkul, S.; Pattanadech, Norasage; Jariyanurat, K.; Wattakapaiboon, W.

doi:10.1109/ieecon.2017.8075762

Cited by 7 publications

(6 citation statements)

References 3 publications

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“…e higher breakdown voltage of mineral oil-based nanofluids should be governed by the trapping mechanism created by the mixed nanomaterial related to the lower conductivity of the mineral oil nanofluids. In the case of natural ester nanofluid, the breakdown voltage of the natural ester nanofluid was also improved and reported in [41,42], even though the nanomaterials increased the conductivity of the natural ester nanofluids.…”

Section: Analysis Of Conductivity In Insulating Liquid-basedmentioning

confidence: 71%

Polarization and Conduction Characteristics of Mineral Oil and Natural Ester Mixed with Nanoparticles

Maneerot

Pattanadech

Kittikhuntharadol

et al. 2022

Advances in Materials Science and Engineering

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Mineral oil (MO) has been widely used in transformers because of its reasonable price and acceptable properties. Currently, alternative liquid insulations have been proposed with some excellent properties. Therefore, the mineral oil characteristics need to be enhanced for high performance to compete with such alternative liquid insulations. This paper aims to study the power frequency dielectric dissipation factor (tanδ) along with polarization and depolarization current (PDC) characteristics of the mineral oil-based nanofluid and natural ester (NE)-based nanofluid. Besides, Fourier-transform infrared spectroscopy (FT-IR) measurement of the test specimen was performed. Titanium dioxide (TiO2) and zinc oxide (ZnO) with 0.01% and also 0.03% volume concentration were used to mix with the unmodified liquid to create liquid insulation-based nanofluid. Then, unmodified mineral oil, unmodified natural ester, mineral oil-based nanofluid, and natural ester-based nanofluid were comparatively investigated. Tanδ at power frequency and the PDC characteristics of such liquids were examined. For PDC measurement, TiO2 clearly affected the polarization current and conduction loss factor, whereas ZnO evidently impacted the depolarization current and polarization loss factor. In the case of FT-IR test results, there was no significant change when the modified insulating liquid was compared with those of the unmodified insulating liquid.

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Section: Analysis Of Conductivity In Insulating Liquid-basedmentioning

confidence: 71%

Polarization and Conduction Characteristics of Mineral Oil and Natural Ester Mixed with Nanoparticles

Maneerot

Pattanadech

Kittikhuntharadol

et al. 2022

Advances in Materials Science and Engineering

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“…In [103], natural ester corn oil and coconut oil with SiO 2 nanoparticle were studied and they showed better electrical and thermal properties. In [104], natural ester FR3 was used to prepare nanofluids with different concentrations of TiO 2 and ZnO nanoparticle. The AC BDV test and negative lightning impulse BDV test done according to IEC 60156 and IEC 60897, respectively, show improved results with the addition of nanoparticles.…”

Section: Liquid Nanodielectricsmentioning

confidence: 99%

“…Properties of different natural ester nanofluids[81][82][83][101][102][103][104][105][106][107][108][109] …”

mentioning

confidence: 99%

Review on natural ester and nanofluids as an environmental friendly alternative to transformer mineral oil

Jacob

Preetha

Sindhu

2020

IET Nanodielectrics

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The development of reliable, environmentally safe and economic insulating oil for the transformer is an endless effort of the electrical industry. Recent research is based on natural ester fluid, the green insulating oil which exhibits excellent dielectric performance and environment friendly characteristics. Nanofluids are also emerging as potential replacement for the conventional mineral oil used in transformers. Characterisation of nanoparticle filled mineral oil and natural esters have validated their improved dielectric behaviour in comparison to the unfilled oil. Although the applications are wide, the state of the art technology requires a deeper understanding of the underlying phenomenon. Much work is expected to be done in the application of nanofluids prepared with mineral oil and natural ester, particularly its effect on the cellulose insulation. The study provides an overview of the different materials that have been used as alternatives to the conventional transformer mineral oil, with special emphasis on natural esters and natural ester nanofluids, their advantages and challenges.

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“…After the sonication process, the fourth sample is dried and degassed in a vacuum drying oven at 60 °C and 10 Mbar for 24 h [9].The nanofluid production process is illustrated in Figure 4. Reports on the LI performance of nanofluids [6,7].…”

Section: Sample Preparationmentioning

confidence: 99%

“…Reports on the breakdown voltage performance of nanofluids[4,6].Energies 2020, 13, 3181 3 of 19 Energies 2020, 13, x FOR PEER REVIEW 3 of 18…”

mentioning

confidence: 99%

Optimum Electrical and Dielectric Performance of Multi-Walled Carbon Nanotubes Doped Disposed Transformer Oil

et al. 2020

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This paper intends to prepare a nanofluid sample by suspending Multi-walled Carbon Nanotubes (MWCNTs) at 0.005g/L concentration and analyze the behavior of electrical and dielectric properties based on the International Electrotechnical Commision test method. In order to validate the effectiveness of MWCNT nanofluid, alternating current breakdown voltage (BDV), negative polarity lightning impulse (LI), dielectric permittivity, dissipation factor (DF), DC resistivity and Raman structural measurement are executed accordingly. In the following, an analysis of the statistical distribution using the two-parameter Weibull distribution law of BDV and LI are evaluated at four experimental conditions to predict the probability of breakdown occurring at different percentages. Based on the observation, the MWCNT filler has a substantial effect in improving the BDV and LI characteristics of disposed mineral oil. The permittivity, DF and resistivity performance of MWCNT nanofluid from 25 °C to 90 °C also produces comparable and reliable performance as a fresh transformer oil. As for Raman structure, the revolution of transformer oil by doping MWCNT does not disrupt the original chemical structure of mineral oil. Hence, this study proves the improvement of the electrical and the behavior of dielectric properties and chemical structure of nanofluid, providing a huge contribution towards the development of insulating materials for transformer application.

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Electrical characteristics of natural ester based nanofluid

Cited by 7 publications

References 3 publications

Polarization and Conduction Characteristics of Mineral Oil and Natural Ester Mixed with Nanoparticles

Polarization and Conduction Characteristics of Mineral Oil and Natural Ester Mixed with Nanoparticles

Review on natural ester and nanofluids as an environmental friendly alternative to transformer mineral oil

Optimum Electrical and Dielectric Performance of Multi-Walled Carbon Nanotubes Doped Disposed Transformer Oil

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