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Experiment-Based Study of Heat Dissipation from the Power Cable in a Casing Pipe

Author

Listed:
  • Romuald Masnicki

    (Department of Marine Electrical Power Engineering, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia, Poland)

  • Janusz Mindykowski

    (Department of Ship Electrical Power Engineering, Faculty of Marine Electrical Engineering, Gdynia Maritime University, Morska St. 83, 81-225 Gdynia, Poland)

  • Beata Palczynska

    (Faculty of Electrical and Control Engineering, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233 Gdansk, Poland)

Abstract

The paper deals with the important challenges in terms of electricity transmission by means of underground cable lines. The power cable’s performance is characterized by an ampacity that represents its maximum electric current-carrying capacity. The ampacity of power cables depends on their ability to diffuse the heat generated by the current flow into the environment. In the performed research, the analysis of the efficiency of heat dissipation from the cable is based on the measurement of temperatures at selected points in individual sections of the cable. As a consequence, the proposed test stand and applied research methodology are vital for the experimental evaluation of the analyzed thermal phenomena in the investigated underground cable lines. The research program covers an in-depth analysis based on the results related to the vital parameters of the investigated cable. The experimental methodology was used to analyze the influence of the properties of the medium surrounding the cable on its temperature, and thus on the ampacity of the cable. A novelty of this paper concerns the carrying out of the experimental laboratory research with actual measurements of the temperature distribution in specific points of the casing pipe based on the original test stand. The paper presents the novel concept of the developed stand for testing heat dissipation from the cable in a casing pipe with pipe sections filled with various media, equipped with a power supply system ensuring easy control of the power dissipated in the cable. The preliminary results of the comparative tests, in which the temperature distribution in the sections of the casing pipes was recorded, indicate that the findings are satisfactorily consistent with the assumptions related to the purpose of the research. The use of appropriate materials surrounding the cable contributes to more effective heat dissipation, and as it has been shown for the examined case in originally planned and conducted tests, it can lower the cable temperature by more than 20 °C, contributing to a significant increase in the ampacity of the cable. For example, it was recorded that for different media filling the pipes, the cable reached 30 °C with different currents flowing through cable of 60 A and 120 A, respectively.

Suggested Citation

  • Romuald Masnicki & Janusz Mindykowski & Beata Palczynska, 2022. "Experiment-Based Study of Heat Dissipation from the Power Cable in a Casing Pipe," Energies, MDPI, vol. 15(13), pages 1-16, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4518-:d:844002
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    References listed on IDEAS

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    1. Shahbaz Ahmad & Zarghaam Haider Rizvi & Joan Chetam Christine Arp & Frank Wuttke & Vineet Tirth & Saiful Islam, 2021. "Evolution of Temperature Field around Underground Power Cable for Static and Cyclic Heating," Energies, MDPI, vol. 14(23), pages 1-19, December.
    2. Paweł Ocłoń & Janusz Pobędza & Paweł Walczak & Piotr Cisek & Andrea Vallati, 2020. "Experimental Validation of a Heat Transfer Model in Underground Power Cable Systems," Energies, MDPI, vol. 13(7), pages 1-10, April.
    3. Christoph Verschaffel-Drefke & Markus Schedel & Constantin Balzer & Volker Hinrichsen & Ingo Sass, 2021. "Heat Dissipation in Variable Underground Power Cable Beddings: Experiences from a Real Scale Field Experiment," Energies, MDPI, vol. 14(21), pages 1-24, November.
    4. Mueller, Christoph Emanuel & Keil, Silke Inga & Bauer, Christian, 2019. "Underground cables vs. overhead lines: Quasi-experimental evidence for the effects on public risk expectations, attitudes, and protest behavior," Energy Policy, Elsevier, vol. 125(C), pages 456-466.
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