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Marine current power with cross-stream active mooring: Part II

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  • Tsao, Che-Chih
  • Han, Le
  • Jiang, Wen-Ting
  • Lee, Chun-Chen
  • Lee, Jia-Shi
  • Feng, An-Hsuan
  • Hsieh, Chieh

Abstract

This is the second of three papers that propose and study a new concept of mooring turbine generators with the aim of resolving key difficulties in realizing ocean current power generation. The concept of Cross-stream Active Mooring (CSAM) features a hydro sail system that allows deployment of generator turbines, from anchoring points on shore or on shallow seafloors, across current stream to access current core flowing over deep seas or over seabed not suitable for anchoring construction. The CSAM can increase system power capacity by changing horizontal positions of generator turbines to track meandering current core, and can also change system depth to avoid storms. New anchoring designs of improved efficiency and implementation methods for resolving seafloor geological issues in the Kuroshio off southeast Taiwan are also included. This second paper discusses conceptual design and construction of the tethers, mooring implementations and reduction of flow drag, mooring of power cable and design of linear array and 2D formation. Model tests were conducted to demonstrate and observe the feasibility of the basic concept and its stability. Formation stability under the influences of waves and other possible perturbations was analyzed and discussed.

Suggested Citation

  • Tsao, Che-Chih & Han, Le & Jiang, Wen-Ting & Lee, Chun-Chen & Lee, Jia-Shi & Feng, An-Hsuan & Hsieh, Chieh, 2018. "Marine current power with cross-stream active mooring: Part II," Renewable Energy, Elsevier, vol. 127(C), pages 1036-1051.
    • Handle: RePEc:eee:renene:v:127:y:2018:i:c:p:1036-1051
    DOI: 10.1016/j.renene.2018.04.024
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    References listed on IDEAS

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    1. Tsao, Che-Chih & Feng, An-Hsuan & Hsieh, Chieh & Fan, Kang-Hsien, 2017. "Marine current power with Cross-stream Active Mooring: Part I," Renewable Energy, Elsevier, vol. 109(C), pages 144-154.
    2. Stansby, Peter & Stallard, Tim, 2016. "Fast optimisation of tidal stream turbine positions for power generation in small arrays with low blockage based on superposition of self-similar far-wake velocity deficit profiles," Renewable Energy, Elsevier, vol. 92(C), pages 366-375.
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    1. Tsao, Che-Chih & Yang, Chia-Che & Chen, Zhi-Xiang, 2023. "Scale model study of basic functions of the cross-stream active mooring for marine current power systems," Renewable Energy, Elsevier, vol. 211(C), pages 723-742.
    2. Tsao, Che-Chih & Chen, Zhi-Xiang & Feng, An-Hsuan & Baharudin, Agus, 2023. "Study of concentrated anchoring, siting, system layout and preliminary cost analysis for a large scale Kuroshio power plant by the cross-stream active mooring," Renewable Energy, Elsevier, vol. 205(C), pages 66-93.
    3. Tsao, Che-Chih & Feng, An-Hsuan & Baharudin, Agus & Yang, Chia-Che, 2024. "Characteristics of ocean current meandering and potential efficacy of maximizing power capacity by tracking short-term meanders with hydro sail enabled active mooring," Renewable Energy, Elsevier, vol. 222(C).
    4. Milad Shadman & Corbiniano Silva & Daiane Faller & Zhijia Wu & Luiz Paulo de Freitas Assad & Luiz Landau & Carlos Levi & Segen F. Estefen, 2019. "Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil," Energies, MDPI, vol. 12(19), pages 1-37, September.

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