Dielectric frequency response at different voltage levels of mineral oil-based silica nanofluids

Verma, H. C.; Baral, Arijit

doi:10.1016/j.asej.2022.101994

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…POME processing using NaOH and KOH catalysts produced an alternative transformer insulation oil that meets several characteristics of insulation oil. Furthermore, to improve the insulation ability of the catalysed oil, a nanomaterial was added, namely, silica treated by saline, which can dissolve in oil [16,17,18,19]. The results of processing POME using a KOH catalyst with added silica treated by saline are better than processing using NaOH, which is also added silica treated by saline.…”

Section: Development Of Insulation Oil Based On Palm Oil Mill Effluen...mentioning

confidence: 99%

Development of insulation oil based on Palm Oil Mill Effluent with nano silica

Sidik,

Amalia,

Agustina

et al. 2024

Sinergi

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Various studies and research have been conducted to find alternatives to liquid insulation. One that is considered the most potential is vegetable oil since it has various advantages, including non-toxic, biodegradable, renewable waste products due to reactions in the form of CO2 and water, high flash points, and better thermal characteristics. In this study, Palm Oil Mill Effluent (POME) was used as the raw material for insulation oil with the addition of an additive in the form of nano-silica, which improves the quality of the insulation oil. As for determining the feasibility of insulation oil, characteristic tests were carried out in the form of density, viscosity, moisture content, acid number, pour point, flash point, and breakdown voltage. Based on the results of the tests, it was obtained that the lowest density in pure oil was 0.8757 g / cm³, the lowest viscosity in oil with the addition of 0.13 wt% nano-silica was 4.0248 cSt, and the lowest acid number in pure oil was 0.5797 mgKOH / g. It was also discovered that the pour point value is the same for each sample, the moisture content is 0.05%, the flashpoint is > 104 °C, and the breakdown voltage is ≥ 60 kV for each sample. The data show that the insulation oil made from POME has the potential to be used as an alternative to insulation oil.

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Section: Development Of Insulation Oil Based On Palm Oil Mill Effluen...mentioning

confidence: 99%

Development of insulation oil based on Palm Oil Mill Effluent with nano silica

Sidik,

Amalia,

Agustina

et al. 2024

Sinergi

View full text Add to dashboard Cite

show abstract

Flash Point Improvement of Mineral Oil Utilizing Nanoparticles to Reduce Fire Risk in Power Transformers: A Review

Khoirudin,

Kristiawan,

Sukarman

et al. 2024

Fire

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Transformers are crucial equipment in electrical distribution systems but have a significant potential for failure. Insulation materials, including transformer oil (TO), play a primary role in transformer failures. A fire involving the TO can lead to a large explosion, causing the main tank to rupture and resulting in extensive damage to the entire transformer and the surrounding area. Mineral oil (MO) is the most widely used type due to its availability and relatively low cost compared to other types of oil. However, MO has a critical disadvantage, which is its very low flash point. The low flash point makes MO highly flammable. When the oil fires in an enclosed space, such as a transformer tank, the pressure inside the tank increases, leading to a large explosion. Therefore, research on increasing the flash point of MO is highly necessary. The application of nanotechnology is a promising approach to increasing the flash point of base fluids. Research on the effect of nanoparticles (NPs) on flash points is very limited in the literature; thus, there is significant potential for further research in this field. The majority of studies indicate an increase in flash points with the addition of NPs to MO. There is only one study that shows a decrease in flash point, which is −1.33% compared to MO. From all the reviewed studies, it can be concluded that NPs are a potential solution to increase the flash point of MO. Despite their benefits, NPs require a thorough examination of health and environmental impacts, along with proper waste management, to ensure their advantages.

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Dielectric frequency response at different voltage levels of mineral oil-based silica nanofluids

Cited by 2 publications

References 19 publications

Development of insulation oil based on Palm Oil Mill Effluent with nano silica

Development of insulation oil based on Palm Oil Mill Effluent with nano silica

Flash Point Improvement of Mineral Oil Utilizing Nanoparticles to Reduce Fire Risk in Power Transformers: A Review

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