IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v332y2025ics036054422502883x.html
   My bibliography  Save this article

Design and test of an off-grid marine current-powered seawater desalination and hydrogen production system

Author

Listed:
  • Zhang, Liyuan
  • Liu, Hongwei
  • Gu, Yajing
  • Ren, He
  • Lin, Yonggang
  • Zou, Tian
  • Hu, Weifei
  • Huang, Luoyang

Abstract

Providing freshwater and energy supply for remote areas and islands is an emerging application of marine current energy. Based on previous simulation studies, a 4 kW prototype is built and tested in the workshop. This experimental work validates the previously proposed concept and further reveals hardware integration challenges, control performance, and real-world system behavior that were not captured in simulations. The system includes a marine current turbine, a directly coupled seawater pump, a PEM electrolyzer, a reverse osmosis desalination unit, and a custom control system with MPPT logic. A 4 kW prototype was constructed and tested in the laboratory using a turbine simulator to emulate real inflow conditions. The test results align well with design expectations and offer new insights into hardware integration and real-world performance limitations. The MPPT controller achieved a power coefficient above 0.4. The specific energy consumption of the desalination and hydrogen production systems were maintained below 3.35 kWh/m3 and 5.78 kWh/Nm3H2, respectively, validating the system's feasibility for practical deployment.

Suggested Citation

  • Zhang, Liyuan & Liu, Hongwei & Gu, Yajing & Ren, He & Lin, Yonggang & Zou, Tian & Hu, Weifei & Huang, Luoyang, 2025. "Design and test of an off-grid marine current-powered seawater desalination and hydrogen production system," Energy, Elsevier, vol. 332(C).
    • Handle: RePEc:eee:energy:v:332:y:2025:i:c:s036054422502883x
    DOI: 10.1016/j.energy.2025.137241
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054422502883X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.137241?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:eee:energy:v:332:y:2025:i:c:s036054422502883x. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    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.