IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i20p6813-d659226.html
   My bibliography  Save this article

Fundamentals of the Thermal Analysis of Complex Arrangements of Underground Heat Sources

Author

Listed:
  • Heiner Brakelmann

    (Faculty for Engineering Sciences, Institute for Energy-Transport and Storage (ETS), and Head of BCC Cable Consulting, University of Duisburg-Essen, D47495 Rheinberg, Germany)

  • George J. Anders

    (Faculty of Electrotechnics, Electronics and Automation, Lodz University of Technology, 90-924 Lodz, Poland)

  • Piotr Zajac

    (Faculty of Electrotechnics, Electronics and Automation, Lodz University of Technology, 90-924 Lodz, Poland)

Abstract

This paper introduces a new analytical method for the 3-dimensional analysis of heat sources installed underground. Such sources include primarily electric power cables and steam pipes in urban areas. For complex arrangements of the heat sources, the heat transfer and cable rating calculations require the application of numerical methods, which call for high level of expertise and are generally difficult to use. The computational algorithm presented in this paper uses a point sources approach and is an extension of the work published by the authors based on line source modeling, with the goal of simplifying the numerical calculations. The proposed approach is applicable for all heat sources, which are directly buried in a uniform or a partially dried out soil. The method is illustrated by several numerical examples. These examples are used for comparison with the existing standard approach.

Suggested Citation

  • Heiner Brakelmann & George J. Anders & Piotr Zajac, 2021. "Fundamentals of the Thermal Analysis of Complex Arrangements of Underground Heat Sources," Energies, MDPI, vol. 14(20), pages 1-17, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6813-:d:659226
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/20/6813/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/20/6813/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Lei You & Jian Wang & Gang Liu & Hui Ma & Ming Zheng, 2018. "Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes," Energies, MDPI, vol. 11(3), pages 1-14, March.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Gang Liu & Deming Guo & Pengyu Wang & Honglei Deng & Xiaobin Hong & Wenhu Tang, 2018. "Calculation of Equivalent Resistance for Ground Wires Twined with Armor Rods in Contact Terminals," Energies, MDPI, vol. 11(4), pages 1-24, March.
    2. Juan Carlos Del-Pino-López & Marius Hatlo & Pedro Cruz-Romero, 2018. "On Simplified 3D Finite Element Simulations of Three-Core Armored Power Cables," Energies, MDPI, vol. 11(11), pages 1-14, November.
    3. Fan Yang & Ningxi Zhu & Gang Liu & Hui Ma & Xiaoyu Wei & Chuanliang Hu & Zhenhua Wang & Jiasheng Huang, 2018. "A New Method for Determining the Connection Resistance of the Compression Connector in Cable Joint," Energies, MDPI, vol. 11(7), pages 1-19, June.
    4. Dong, T. & Brakelmann, H. & Anders, G.J., 2023. "Analysis method for the design of long submarine cables," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6813-:d:659226. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.