Integrated operational characteristic simulations of a ±100 kV/1 kA superconducting DC energy pipeline based on multi-physics field interaction

Zhu, Jiahui and Huang, Pengzhen and Qiu, Ming and Chen, Panpan and Zhang, Hongjie and Yang, Yanfang and Ertekin, Ercan (2023) Integrated operational characteristic simulations of a ±100 kV/1 kA superconducting DC energy pipeline based on multi-physics field interaction. IEEE Transactions on Applied Superconductivity, 35 (5). 5400105. ISSN 1051-8223 (https://doi.org/10.1109/tasc.2023.3239588)

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Abstract

The DC superconducting energy pipeline (DC SEP) is a promising technology, which has the ability to transmit electricity and fossil energy such as liquefied natural gas (LNG) at the same pipeline so that LNG could serve as the refrigerant for the high-temperature superconducting (HTS) cables. The collaborative transportation of electricity and LNG increases the efficiency while lowering the cost. However, the operation performance of the SEP, which is crucial for HTS cables and LNG, is of greater complexity on account of multi-physics interactions. Herein, a ±100 kV/1 kA SEP model with electric, magnetic, fluid and thermal fields is established in COMSOL Multiphysics to analyze the temperature distribution of SEP via parametric scanning on SEP heat leakage and LNG flow rate. Finally, the relationship between temperature rise and LNG flow rate of a SEP has been estimated based on the interactions of the multi-physics fields. The results indicate that the temperature rises by 11.6 K for every kilometer of SEP. Moreover, the influences of heat leakage and LNG flow on temperature rise are revealed. Temperature rise increases proportionally with heat leakage and it decreases not monotonously with LNG flow rate. This study validates the feasibility of SEP and provides the theoretical references for the demonstration of SEP.

  • Item type:Article
    ID code:84217
    Dates:
    Date
    Event
    31 August 2023
    Published
    24 January 2023
    Published Online
    16 January 2023
    Accepted
    Notes:© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Science > Physics
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:16 Feb 2023 02:30
    Last modified:29 Apr 2024 00:57
    URI:https://strathprints.strath.ac.uk/id/eprint/84217
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