Effect of nanoparticles on breakdown, aging and other properties of vegetable oil

Sulemani, M. S.; Majid, Abdul; Khan, Faisal; Ahmad, Naseer; Abid, Muhammad; Khan, İlyas

doi:10.1109/icpesg.2018.8384521

Cited by 13 publications

(5 citation statements)

References 14 publications

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“…Examples of vegetable oils include coconut oil, palm oil, rapeseed oil, and soybean oil. However, due to the three-line structure of the triglyceride molecule, vegetable oils have a higher viscosity within a range of 38-50 mm 2 /s at 40 ℃, which is greater than MO (11.9 mm 2 /s at 40 ℃) [1,2]. As a result of this high viscosity, the cooling efficiency decreases with an increase in viscosity, which in turn is impacted by the thermosiphon process that affects oil circulation in the transformer.…”

Section: Introductionmentioning

confidence: 99%

Nano-Titanium Dioxide Filler Particles in Soybean Methyl Ester for an Improvement of Electrical Breakdown Strength of Soybean Vegetable Oil as a Transformer Oil Substitute

Khonchaiyaphum,

Wongwuttanasatian,

Suksri

2024

MSF

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Power transformers use mineral oil as an insulating liquid due to its excellent dielectric properties. However, mineral oil is a non-renewable resource and is toxic to the environment when leaked. The purpose of this research is to examine vegetable oil containing nanotitanium dioxide as a substitute for mineral transformer oil. Vegetable insulating oils are environmentally benign and have good breakdown voltage (BV) and high ignition points that can decompose naturally in the event of a leak. Nevertheless, the high viscosity of vegetable oil slows down the flow rate in the transformer cooling. To overcome this problem, the process of transesterification was used to produce soybean methyl ester (SBME). SBME is used as an insulating liquid including composite filler of titanium dioxide (TiO2) nanoparticles. Electrical breakdown voltage (BV) tests were performed following ASTM D1816 standards. Results demonstrated that SBME has a greater BV than natural soybean oil. Also, the addition TiO2 nanoparticles increases the BV of the SBME’s mixture. All cases of nanoparticle methyl ester (NPME) conducted in the experiments exhibited a BV higher than 28 kV which is well above the standard value.

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Section: Introductionmentioning

confidence: 99%

Nano-Titanium Dioxide Filler Particles in Soybean Methyl Ester for an Improvement of Electrical Breakdown Strength of Soybean Vegetable Oil as a Transformer Oil Substitute

Khonchaiyaphum,

Wongwuttanasatian,

Suksri

2024

MSF

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“…This idea motivates the development of high oleic vegetable oil for insulation [5]. Other approaches are TELKOMNIKA Telecommun Comput El Control  Monoesters for transformer insulating liquid (Abdul Rajab) 1385 providing additives like antioxidant, metal passivator, and pour point depressant, adding nanoparticles, and implementing the natural ester only in a hermetically sealed transformer [1], [5], [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Monoesters for transformer insulating liquid

et al. 2022

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The development of low viscosity insulating liquids derived from natural esters is conducted in our laboratory. Nine monoesters, i.e., methyl myristate, ethyl myristate, isopropyl myristate, methyl palmitate, ethyl palmitate, isopropyl palmitate, methyl stearate, ethyl stearate, and isopropyl stearate were synthesized from alcohols and saturated fatty acids. Treatments were performed to reduce water and acid contents and improve the oxidation stability of the monoesters. Some fundamental properties, such as breakdown voltage, kinematic viscosity, density, water content, acidity, and oxidation stability, were tested before and after treatments. The results are evaluated based on the international electrotehnical commission (IEC) standard specifications for low-viscosity monoesters derived from natural esters, IEC 62770. Except for the water content, all other properties have good compliance with the standard. The treatments reduced the water content significantly, but the values are still slightly higher than that specified by the standard.

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“…Rapeseed oil is eco-friendly in nature, and produce less harmful fumes during combustion as compared to mineral oil [11][12]. Since, these oils have better insulation properties alone but, these properties can be enhanced with the addition of conductive and semi-conductive nanoparticles [13]- [14]. The main contribution of this paper lies in performing the comparative analysis on the dielectric properties of all the oils, and its subsequent nanofluids to determine the best oil/nanofluid among all the tested liquids, and identify the nanoparticle that maximum enhances the breakdown strength of dielectrics.…”

Section: Introductionmentioning

confidence: 99%

Effect of Iron/Titania-Based Nanomaterials on the Dielectric Properties of Mineral Oil, Natural and Synthetic Esters as Transformers Insulating Fluid

Khan

Tariq²,

Khan

et al. 2021

IEEE Access

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There is a need to develop upgraded insulant which offers superior dielectric properties than mineral oil in terms of cooling, insulation, and efficient functioning under extreme weather conditions. These oils are nanofluids that are synthesized by dispersing nanoparticles in the oil. These fluids are tested with their ability to withstand various faults under operating conditions by determining the dielectric and electrical properties like ac breakdown strength, relative permittivity, and dielectric dissipation factor. A comparison between nanoparticles and their effect on insulating oils has been widely discussed and presented. In this study, three nanoparticles namely Fe3O4, TiO2, and Fe-Cu are dispersed in three different types of oils namely mineral oil (i.e., transformer oil used as insulating liquid in transformers), synthetic ester oil (i.e., pentaerythritol ester), and rapeseed oil (natural-ester transformer fluid). These nanofluids are considered upgraded insulant due to its superior insulation characteristics compared to pure mineral oil. Synthetic ester-based oils and natural rapeseed oil are tested for insulation capabilities for better results, which show they have all the potential to replace transformer oil in high voltage equipments.

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Effect of nanoparticles on breakdown, aging and other properties of vegetable oil

Cited by 13 publications

References 14 publications

Nano-Titanium Dioxide Filler Particles in Soybean Methyl Ester for an Improvement of Electrical Breakdown Strength of Soybean Vegetable Oil as a Transformer Oil Substitute

Nano-Titanium Dioxide Filler Particles in Soybean Methyl Ester for an Improvement of Electrical Breakdown Strength of Soybean Vegetable Oil as a Transformer Oil Substitute

Monoesters for transformer insulating liquid

Effect of Iron/Titania-Based Nanomaterials on the Dielectric Properties of Mineral Oil, Natural and Synthetic Esters as Transformers Insulating Fluid

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