APPLIED JOURNAL OF PHYSICAL SCIENCE
Integrity Research Journals

ISSN: 2756-6684
Model: Open Access/Peer Reviewed
DOI: 10.31248/AJPS
Start Year: 2018
Email: ajps@integrityresjournals.org


Evaluation of the impact of green antioxidants on the functionality of power transformer bio-coolants

https://doi.org/10.31248/AJPS2025.123   |   Article Number: E55F0C0E2   |   Vol.6 (2) - April 2025

Received Date: 18 March 2025   |   Accepted Date: 28 April 2025  |   Published Date: 30 April 2025

Authors:  Akpomedaye, O. , Erokare, E. T. , Akwenuke, O. M. and Uguru, H.*

This research was conducted based on the necessity of substituting mineral (conventional) transformer oil with safer and ecologically friendly bio-based oils, due to public health challenges associated with mineral oils. Palm oil (PO) was blended with varying concentrations of turmeric extract (TE), and African nutmeg extract (AME). The physical and electrical properties of the blended and unfortified PO specimens were evaluated in harmony with ASTM procedures. Outcomes of the experimental investigated depicted that the TE initiated an 64, 130, 38 and 46% improvement of the oil’s breakdown voltage, pour point, flash point and viscosity levels, respectively; likewise, the AME caused 41, 90, 32 and 39% enhancement on the oil’s breakdown voltage, pour point, flash point and viscosity levels, respectively. The results further revealed that the green additives successfully increased the likelihood of utilising PO as a suitable bio-based oil and coolant in a power transformer.  Remarkably, this study’s findings have emphasised the possibility of using bio-antioxidants in enhancing green oils and bio-coolants' performance and sustainability.

Abushal, S. A., Uguru, H., Akpomedaye, O., Kuzmin, A., Sami, R., Helal, M., Alsanei, W. A., Almehmadi, A. M., & Almasoudi, A. G. (2024). Effect of storage conditions on the dietary and pharmaceutical values of ginger oil, and modeling its dielectric properties. Grasas y Aceites, 75(4), 2207-2207.
https://doi.org/10.3989/gya.1200232.2207
 
Akpokodje, O. I., & Uguru, H. (2019). Bioremediation of hydrocarbon contaminated soil: assessment of compost manure and organic soap. Transactions on Machine Learning and Artificial Intelligence, 7(5), 13-23.
https://doi.org/10.14738/tmlai.75.7013
 
Ghoneim, S. S., Dessouky, S. S., Boubakeur, A., Elfaraskoury, A. A., Abou Sharaf, A. B., Mahmoud, K., Lehtonen, M., & Darwish, M. M. (2021). Accurate insulating oil breakdown voltage model associated with different barrier effects. Processes, 9(4), 657.
https://doi.org/10.3390/pr9040657
 
Igwe, C. C., Yayi, E., & Moudachirou, M. (2005). Chemical constituents of the solvent extracted and hydrodistilled essential oils of African nutmeg (Monodora myristica) and turmeric (Curcuma domestica) from South West Nigeria. Nigerian Food Journal, 23(1), 21-32.
https://doi.org/10.4314/nifoj.v23i1.33595
 
Jain, H., Bhatti, B. A., Wu, T., Mather, B., & Broadwater, R. (2021). Integrated transmission-and-distribution system modeling of power systems: State-of-the-art and future research directions. Energies, 14(1), 12.
https://doi.org/10.3390/en14010012
 
Karthik, M., & Narmadhai, N. (2024). Transformer insulation-based vegetable seed oil for power system analysis. Biomass Conversion and Biorefinery, 14(17), 21565-21578.
https://doi.org/10.1007/s13399-024-05635-w
 
Koca, A., Senturk, O., Akbal, Ö., & Özcan, H. (2024). Techno-Economic Optimization of Radiator Configurations in Power Transformer Cooling. Designs, 8(1), 15.
https://doi.org/10.3390/designs8010015
 
Li, M., Yao, W., Gao, X., & Ren, Y. (2023, May). Temperature simulation of oil-immersed transformerbased on fluid-thermal coupling. In Journal of Physics: Conference Series (Vol. 2503, No. 1, p. 012060). IOP Publishing.
https://doi.org/10.1088/1742-6596/2503/1/012060
 
Mustangin, M., Purwantana, B., Hidayat, C., & Radi. (2025). Comparison of thermal characteristics and cooling performance of crude palm oil and mineral oil as electrical insulators. Results in Engineering, 26, 104547.
https://doi.org/10.1016/j.rineng.2025.104547
 
Oparanti, S. O., Fofana, I., Jafari, R., Zarrougui, R., & Abdelmalik, A. A. (2024a). Canola oil: A renewable and sustainable green dielectric liquid for transformer insulation. Industrial Crops and Products, 215, 118674.
https://doi.org/10.1016/j.indcrop.2024.118674
 
Oparanti, S. O., Fofana, I., Zarrougui, R., Jafari, R., & Yapi, K. M. L. (2024b). Improving some physicochemical characteristics of environmentally friendly insulating liquids for enhanced sustainability in subpolar transformer applications. Sustainable Materials and Technologies, 41, e00996.
https://doi.org/10.1016/j.susmat.2024.e00996
 
Osuji, U., Ezeonye, C. S., Nnaji, G. A., Chukwu, M. M., & Iheaturu, N. C. (2025). Characterization of variant vegetable oil as a substitute for power transformer coolant. NIPES - Journal of Science and Technology Research, 7(1), 277-289
 
Pruteanu, L. L., Bailey, D. S., Grădinaru, A. C., & Jäntschi, L. (2023). The biochemistry and effectiveness of antioxidants in food, fruits, and marine algae. Antioxidants, 12(4), 860-881.
https://doi.org/10.3390/antiox12040860
 
Rafiq, M., Shafique, M., Azam, A., & Ateeq, M. (2021). Transformer oil-based nanofluid: The application of nanomaterials on thermal, electrical and physicochemical properties of liquid insulation - A review. Ain Shams Engineering Journal, 12(1), 555-576.
https://doi.org/10.1016/j.asej.2020.08.010
 
Siddique, A., Adnan, M., Aslam, W., Murtaza Qamar, H. G., Aslam, M. N., & Alqahtani, S. A. (2024). Up-gradation of the dielectric, physical & chemical properties of cottonseed-based, non-edible green nanofluids as sustainable alternatives for high-voltage equipment's insulation fluids. Heliyon, 10(7), e28352.
https://doi.org/10.1016/j.heliyon.2024.e28352
 
Sorte, S., Monteiro, A. F., Ventura, D., Salgado, A., Oliveira, M. S. A., & Martins, N. (2025). Power transformers cooling design: A comprehensive Review. Energies, 18(5), 1051-1069.
https://doi.org/10.3390/en18051051
 
Tiwari, R., Agrawal, P. S., Belkhode, P. N., Ruatpuia, J. V. L., & Rokhum, S. L. (2024). Hazardous effects of waste transformer oil and its prevention: A review. Next Sustainability, 3, 100026.
https://doi.org/10.1016/j.nxsust.2024.100026
 
Uguru, H., Akpokodje, O. I., Hemdan, D. I., Sami, R., Helal, M., Aljahani, A. H., Ashour, A. A., & Algehainy, N. A. (2023). Effectiveness of plant oil in stabilising the antioxidants, phenolic compounds and antimicrobial effects of groundnut (Arachis hypogaea L) oil. Materials Express, 13, 704-716.
https://doi.org/10.1166/mex.2023.2389