IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i9p2303-d1646829.html
   My bibliography  Save this article

Design and Analysis of a Novel Ocean Current Two-Coupled Crossflow Turbine Energy Converter

Author

Listed:
  • Shueei-Muh Lin

    (Green Energy Technology Research Centre (GETRC), Department of Mechanical Engineering, Kun Shan University, Tainan 710, Taiwan)

  • Wei-Le Huang

    (Green Energy Technology Research Centre (GETRC), Department of Mechanical Engineering, Kun Shan University, Tainan 710, Taiwan)

  • Didi Widya Utama

    (Department of Mechanical Engineering, Universitas Tarumanagara, Jakarta 11440, Indonesia)

  • Yang-Yih Chen

    (Department of Marine Environment and Engineering, National Sun Yat-sen University; Kaohsiung 80424, Taiwan)

Abstract

In this study, a novel ocean current energy converter is proposed. The energy converter is composed of two crossflow turbines. The two turbines rotate at the same speed but in opposite directions; therefore, the summation of the hydrodynamic torques applied to the two turbines is equal to zero, which can make the converter self-stabilizing. A channel is designed to guide a large amount of water flowing through the turbine, thereby increasing the incident velocity, power, and efficiency of the turbine. The guide vanes are positioned in front of the turbine to guide the ocean current, producing the optimal flow incident angle and thereby increasing the performance of the turbine. A novel empirical formula for determining the power and efficiency of the converter is derived. Moreover, a computational fluid dynamics (CFD) analysis of the energy converter is conducted using the commercial software Star CCM+ in the standard κ-ω turbulence model with wall functions. The accuracy of the empirical formula is verified by comparing the theoretical results with those obtained using the CFD method. Finally, the effects of several parameters on the performance of the energy converter are investigated. The optimal parameters are obtained as follows: (1) The optimal setting angles of vanes γ 1 = 78°, γ 2 = γ 1 + 10 ° , and γ 3 = γ 1 − 5 ° . (2) The optimal blade angle β = 44°. (3) The optimal rotating speed N = 2.6 ( V cur /1.6) rpm. (4) The optimal ratio of turbine center distance r L 4 ≥ 2.50. (5) The optimal ratio of turbine shaft length is approximately 5.5 < ( r shaft = W shaft /D tur ) opt < 5.7. (6) The performance of each turbine with N blade = 31 blades is significantly better than that with N blade = 23 blades.

Suggested Citation

  • Shueei-Muh Lin & Wei-Le Huang & Didi Widya Utama & Yang-Yih Chen, 2025. "Design and Analysis of a Novel Ocean Current Two-Coupled Crossflow Turbine Energy Converter," Energies, MDPI, vol. 18(9), pages 1-24, April.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:9:p:2303-:d:1646829
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/9/2303/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/18/9/2303/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Moreau, Martin & Germain, Grégory & Maurice, Guillaume, 2023. "Experimental performance and wake study of a ducted twin vertical axis turbine in ebb and flood tide currents at a 1/20th scale," Renewable Energy, Elsevier, vol. 214(C), pages 318-333.
    2. Pierre-Luc Delafin & François Deniset & Jacques André Astolfi & Frédéric Hauville, 2021. "Performance Improvement of a Darrieus Tidal Turbine with Active Variable Pitch," Energies, MDPI, vol. 14(3), pages 1-18, January.
    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. Moreau, Martin & Bloch, Noam & Germain, Grégory & Maurice, Guillaume, 2024. "Experimental study of the upstream bathymetry effects on a ducted twin vertical axis turbine," Renewable Energy, Elsevier, vol. 224(C).
    2. Kamal, Md. Mustafa & Saini, R.P., 2022. "A numerical investigation on the influence of savonius blade helicity on the performance characteristics of hybrid cross-flow hydrokinetic turbine," Renewable Energy, Elsevier, vol. 190(C), pages 788-804.
    3. Sylvain S. Guillou & Eric Bibeau, 2023. "Tidal Turbines," Energies, MDPI, vol. 16(7), pages 1-5, April.
    4. Zhen Qin & Xiaoran Tang & Yu-Ting Wu & Sung-Ki Lyu, 2022. "Advancement of Tidal Current Generation Technology in Recent Years: A Review," Energies, MDPI, vol. 15(21), pages 1-18, October.
    5. Alina Fazylova & Baurzhan Tultayev & Teodor Iliev & Ivaylo Stoyanov & Ivan Beloev, 2023. "Development of a Control Unit for the Angle of Attack of a Vertically Axial Wind Turbine," Energies, MDPI, vol. 16(13), pages 1-20, July.
    6. Paul Brousseau & Mustapha Benaouicha & Sylvain Guillou, 2021. "Hydrodynamic Efficiency Analysis of a Flexible Hydrofoil Oscillating in a Moderate Reynolds Number Fluid Flow," Energies, MDPI, vol. 14(14), pages 1-19, July.
    7. Abed, Bouabdellah & Benzerdjeb, Abdelouahab & Benmansour, Abdeljellil & Achache, Habib & Ferhat, Rabia & Debz, Abderrahmene & Gorlov, Alaxender M., 2021. "An efficient hydrodynamic method for cross-flow turbines performance evaluation and comparison with the experiment," Renewable Energy, Elsevier, vol. 180(C), pages 993-1003.

    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:gam:jeners:v:18:y:2025:i:9:p:2303-:d:1646829. 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.