Enhancing dielectric performance and sustainability: TiO₂‐infused Eruca sativa oil as a high‐efficiency insulating fluid for power transformers.

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Title: Enhancing dielectric performance and sustainability: TiO₂‐infused Eruca sativa oil as a high‐efficiency insulating fluid for power transformers.
Authors: Hameed, Muhammad Furqan1 (AUTHOR), Maqsood, Nabeel2,3 (AUTHOR) nabeel.maqsood@ftmc.lt, Islam, Bilal2 (AUTHOR) bilal.islam@ftmc.lt, Nawaz, Ahmad4 (AUTHOR), Islam, Sara5 (AUTHOR), Zaheer, Malik Daniyal6 (AUTHOR), Skotnicová, Kateřina3 (AUTHOR)
Source: Environmental Progress & Sustainable Energy. May/Jun2026, Vol. 45 Issue 3, p1-15. 15p.
Subjects: Titanium dioxide, Power transformers, Vegetable oils, Nanofluids, Arugula, Liquid dielectrics, Dielectric strength, Sustainability
Abstract: This study explores the impact of titanium dioxide (TiO₂) nanotubes on the physical and dielectric properties of Eruca Sativa (ES) oil for potential use in power transformers. With growing demand for sustainable alternatives to mineral oils, vegetable oils offer benefits such as biodegradability, high flash points, and strong dielectric performance. ES oil, extracted from Arugula seeds and widely available in Asia, remains underexplored for such applications. In this work, ES oil‐based nanofluids (NFs) were developed by dispersing TiO₂ nanotubes at 0.01 and 0.1 g/L concentrations using ultrasonication. Physical properties including viscosity, moisture content, specific gravity, acidity, flash point, and pour point were measured following IEC/ISO standards. Dielectric strength was assessed via AC breakdown voltage tests using mushroom electrodes, considering the effects of temperature and humidity. The NF with 0.01 g/L TiO₂ showed the most favorable results, enhancing AC breakdown voltage by 33% compared to pure ES oil. It also demonstrated a 5.14% increase in viscosity and a significant drop in pour point, indicating better low‐temperature performance. A cost–benefit analysis revealed a positive ratio of +0.08, suggesting economic viability. ES oil‐based nanofluids, especially at lower TiO₂ concentrations, provide a sustainable and efficient alternative to conventional mineral oil for transformer insulation. [ABSTRACT FROM AUTHOR]
Copyright of Environmental Progress & Sustainable Energy is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Enhancing dielectric performance and sustainability: TiO₂‐infused Eruca sativa oil as a high‐efficiency insulating fluid for power transformers.
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  Data: <searchLink fieldCode="JN" term="%22Environmental+Progress+%26+Sustainable+Energy%22">Environmental Progress & Sustainable Energy</searchLink>. May/Jun2026, Vol. 45 Issue 3, p1-15. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Titanium+dioxide%22">Titanium dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Power+transformers%22">Power transformers</searchLink><br /><searchLink fieldCode="DE" term="%22Vegetable+oils%22">Vegetable oils</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofluids%22">Nanofluids</searchLink><br /><searchLink fieldCode="DE" term="%22Arugula%22">Arugula</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+dielectrics%22">Liquid dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+strength%22">Dielectric strength</searchLink><br /><searchLink fieldCode="DE" term="%22Sustainability%22">Sustainability</searchLink>
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  Data: This study explores the impact of titanium dioxide (TiO₂) nanotubes on the physical and dielectric properties of Eruca Sativa (ES) oil for potential use in power transformers. With growing demand for sustainable alternatives to mineral oils, vegetable oils offer benefits such as biodegradability, high flash points, and strong dielectric performance. ES oil, extracted from Arugula seeds and widely available in Asia, remains underexplored for such applications. In this work, ES oil‐based nanofluids (NFs) were developed by dispersing TiO₂ nanotubes at 0.01 and 0.1 g/L concentrations using ultrasonication. Physical properties including viscosity, moisture content, specific gravity, acidity, flash point, and pour point were measured following IEC/ISO standards. Dielectric strength was assessed via AC breakdown voltage tests using mushroom electrodes, considering the effects of temperature and humidity. The NF with 0.01 g/L TiO₂ showed the most favorable results, enhancing AC breakdown voltage by 33% compared to pure ES oil. It also demonstrated a 5.14% increase in viscosity and a significant drop in pour point, indicating better low‐temperature performance. A cost–benefit analysis revealed a positive ratio of +0.08, suggesting economic viability. ES oil‐based nanofluids, especially at lower TiO₂ concentrations, provide a sustainable and efficient alternative to conventional mineral oil for transformer insulation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Environmental Progress & Sustainable Energy is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/ep.70446
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        Text: English
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        Type: general
      – SubjectFull: Power transformers
        Type: general
      – SubjectFull: Vegetable oils
        Type: general
      – SubjectFull: Nanofluids
        Type: general
      – SubjectFull: Arugula
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      – SubjectFull: Liquid dielectrics
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      – SubjectFull: Dielectric strength
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      – SubjectFull: Sustainability
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      – TitleFull: Enhancing dielectric performance and sustainability: TiO₂‐infused Eruca sativa oil as a high‐efficiency insulating fluid for power transformers.
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              M: 05
              Text: May/Jun2026
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              Y: 2026
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