E3S Web Conf.
Volume 70, 201817th International Conference Heat Transfer and Renewable Sources of Energy (HTRSE-2018)
|Number of page(s)||5|
|Section||Chosen Energetical Problems|
|Published online||03 December 2018|
Ampacity of power cables exposed to solar radiation – recommendations of standards vs. CFD simulations
1 Gdansk University of Technology, Faculty of Electrical and Control Engineering, ul. Narutowicza 11/12, PL-80-233 Gdansk, Poland
2 Koszalin University of Technology, Faculty of Mechanical Engineering, ul. Raclawicka 15-17, PL-77-620 Koszalin, Poland
3 Polish Academy of Sciences, Institute of Fluid-Flow Machinery, ul. Fiszera 14, PL-80-231 Gdansk, Poland
* Corresponding author: firstname.lastname@example.org
Ampacity of power cables strictly depends on the ambient conditions. It is very important whether a cable is buried in soil, installed in the air or placed in ducts. When a cable is installed in free air, potential solar radiation has the dominant impact on the prospective ampacity. International standards indicate how to calculate ampacity of power cables exposed to solar radiation, however the standards’ recommendations are characterised by some simplifications. In order to consider many complex factors influencing ampacity of power cables, and modelling advanced heat transfer phenomena, a Computational Fluid Dynamics (CFD) can be used. This paper presents a comparison of ampacity calculation of an example power cable for two approaches – first: according to international standards; second: with a CFD employed. Differences in results obtained for these two approaches are commented.
© The Authors, published by EDP Sciences, 2018
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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