| Issue |
E3S Web Conf.
Volume 19, 2017
International Conference Energy, Environment and Material Systems (EEMS 2017)
|
|
|---|---|---|
| Article Number | 01040 | |
| Number of page(s) | 6 | |
| Section | Energy | |
| DOI | https://doi.org/10.1051/e3sconf/20171901040 | |
| Published online | 23 October 2017 | |
Thermal properties of mixtures of mineral oil and natural ester in terms of their application in the transformer
Poznan University of Technology, Institute of Electrical Power Engineering, 60965 Poznan, Poland
⁎ Corresponding author: zbigniew.nadolny@put.poznan.pl
The article describes research results of thermal properties of mineral oil and natural ester. Percentage proportions of both the liquids were as follows: 100/0, 95/5, 80/20, 50/50, 20/80, 0/100. The authors present measurement results of thermal conductivity, viscosity, specific heat, density, and thermal expansion of the created mixtures. The measurements were taken in a relatively wide temperature range: 25 °C, 40 °C, 60 °C, and 80 °C. On the basis of the measurement results, convection heat transfer coefficient α was calculated and the most advantageous proportion of both the components of the mixture was pointed in terms of cooling effectiveness of the transformer.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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