Autors: Hadzhiev, I. S., Yatchev, I. S., Mechkov, E. P.
Title: Conjugate Heat Transfer Analysis Using 3D FEM Model of an Oil-immersed Distribution Transformer
Keywords: finite element method (FEM); conjugate heat transfer analysis; oil-immersed transformer

Abstract: Temperature field distribution in transformers active components and oil velocity variation in the tank are important for device properties and its duration of operation. From the point of view of designers and users, these characteristics of the transformers are considerable in determining the possibility of overloading and the consequences in the lifetime by exploitation at different temperatures. In the present work, the conjugate heat transfer methodology has been employed to predict the thermal and flow properties of investigated object. 3D model has been developed using finite element method and COMSOL program.


  1. V V S S. Haritha, “Thermal modeling of electrical utility transformers,” Dissertation, International Institute of Information Technology, India, 2011.
  2. M. Taghikhani, “ONAN power transformer heat transfer modeling,” International Journal of Energy Science, vol.1, no.3, 2011, pp. 176-179.
  3. J. Smolka and A. Nowak, “Experimental validation of the coupled fluid flow, heat transfer and electromagnetic numerical model of the mediumpower dry-type electrical transformer,” International Journal of Thermal Sciences, 47, 2008, pp. 1393-1410.
  4. I. Kapetanović, M. Tešanović, and M. Kasumović, “Different approaches to power transformer thermal modelling,” 11th International Research/Expert Conference ”Trends in the Development of Machinery and Associated Technology” TMT 2007, Hammamet, Tunisia, 05-09 September, 2007, pp. 1107-1110.
  5. V. Madžarević, I. Kapetanović, M. Tešanović, and M. Kasumović, “Different approach to thermal modeling of transformers-a comparison of methods,” International Journal of Energy and Environment, Issue 5, vol. 5, 2011, pp. 610-617.
  6. K. Najdenkoski and D. Manov, “Numerical determination of temperatures distribution in energy transformers,” Mako CIGRE 2004, Ohrid, 26-29 September 2004, pp. A2-02 1-A2-02 9. (in Macedonian)
  7. I. A. Hassan, “Thermal analysis for distribution transformer with ONAN cooling system,” Journal of the College of Al - Ma'moun University
  8. M. Eteiba, E. Alzahab and Y. Shaker, “Steady state temperature distribution of cast- resin dry type transformer based on new thermal model using finite element method,” International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering, vol. 4, No. 2, 2010, pp. 361-365.
  9. COMSOL 5.1 Help Desk.
  10. E. Mechkov, R. Tzeneva, V. Mateev, and I. Yatchev, “Electromagnetic field modelling using FEM of the active part of oil-immersed transformers,” Materials Science Forum, Trans Tech Publications, Switzerland, 2016, pp 184-189.
  11. V. Mateev, R. Tzeneva, E. Mechkov, and I. Yatchev, “Electromagnetic field modelling using FEM of the active part of oil-immersed transformer,” Proceedings of Technical University of Sofia, vol. 66, issue 1, 2016, pp 527-532. (in Bulgarian)
  12. E. Mechkov, and N. Stoimenov, “Experimental temperature rise investigation of an oil-immersed distribution transformer,” Proceedings of Technical University of Sofia, vol. 68, issue 1, 2018, pp 365-374.


International Conference on High Technology for Sustainable Development, HiTech 2018 - Proceedings, pp. 1-4, 2018, Bulgaria, IEEE, DOI 10.1109/HiTech.2018.8566619

Copyright IEEE

Цитирания (Citation/s):
1. Tran, Q.T., Davies, K., Roose, L., Wiriyakitikun, P., Janjampop, J., Sanseverino, E.R., Zizzo, G., A review of health assessment techniques for distribution transformers in smart distribution grids, Applied Sciences (Switzerland), Vol. 10, Issue 22, pp. 1-20, ISSN 2076-3417, DOI: 10.3390/app10228115 - 2020 - в издания, индексирани в Scopus или Web of Science
2. Harighi, T., Bayindir, R., Gokmen, U., Jamalgolzari, L.E., Khanlari, A., Changing power transformer metallurgy to increase responsibility of electric vehicle fast charge profile, 9th International Conference on Renewable Energy Research and Applications, ICRERA 2020, Glasgow, United Kingdom, ISBN 978-1-7281-7369-6, DOI: 10.1109/ICRERA49962.2020.9242733 - 2020 - в издания, индексирани в Scopus или Web of Science
3. Ediriweera, E.G.P., Wickramasinghe, K., Sithmini, K.R.I., Ekanayaka, E.A.A.G., Samarasinghe, R., Lucas, J.R. Localizing hotspot in an oil immersed distribution transformer using finite element analysis (2020) IEEE Electric Power and Energy Conference, EPEC 2020, art. no. 9320046. DOI: 10.1109/EPEC48502.2020.9320046 - 2020 - в издания, индексирани в Scopus или Web of Science

Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus и Web of Science