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Analytical and Numerical Analysis of the Dynamics of a Moonpool Platform–Wave Energy Buoy (MP–WEB)

Author

Listed:
  • Fankai Kong

    (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China)

  • Hengxu Liu

    (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

  • Weiming Su

    (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China)

  • Jingtao Ao

    (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

  • Hailong Chen

    (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

  • Fengmei Jing

    (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

Abstract

In this work the hydrodynamic performance of a novel wave energy converter configuration was analytically and numerically studied by combining a moonpool and a wave energy buoy, called the moonpool platform–wave energy buoy (MP–WEB). A potential flow, semi-analytical approach was adopted to assess the total (incident, diffraction, radiation) wave forces acting on the device, and the wave capture and energy efficiency performance of this configuration was assessed, both in the time and frequency domain. The performance of the two configurations, single float and double float, were analyzed and compared in terms of diffraction force, added mass radiation force, motion, and power in the frequency domain. Using an impulse response function-based (IRF) method, the frequency domain results were converted in the time domain. The same parameters in the time domain were derived and the main results were confirmed. Wave energy conversion efficiency was significantly increased due to the resonance phenomenon inside the moonpool.

Suggested Citation

  • Fankai Kong & Hengxu Liu & Weiming Su & Jingtao Ao & Hailong Chen & Fengmei Jing, 2019. "Analytical and Numerical Analysis of the Dynamics of a Moonpool Platform–Wave Energy Buoy (MP–WEB)," Energies, MDPI, vol. 12(21), pages 1-24, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:21:p:4083-:d:280504
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    References listed on IDEAS

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    1. Liang, Changwei & Zuo, Lei, 2017. "On the dynamics and design of a two-body wave energy converter," Renewable Energy, Elsevier, vol. 101(C), pages 265-274.
    2. Zang, Zhipeng & Zhang, Qinghe & Qi, Yue & Fu, Xiaoying, 2018. "Hydrodynamic responses and efficiency analyses of a heaving-buoy wave energy converter with PTO damping in regular and irregular waves," Renewable Energy, Elsevier, vol. 116(PA), pages 527-542.
    3. Li, Ye & Yu, Yi-Hsiang, 2012. "A synthesis of numerical methods for modeling wave energy converter-point absorbers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(6), pages 4352-4364.
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    Cited by:

    1. Tay, Zhi Yung, 2022. "Energy generation enhancement of arrays of point absorber wave energy converters via Moonpool's resonance effect," Renewable Energy, Elsevier, vol. 188(C), pages 830-848.
    2. Hengxu Liu & Feng Yan & Fengmei Jing & Jingtao Ao & Zhaoliang Han & Fankai Kong, 2020. "Numerical and Experimental Investigation on a Moonpool-Buoy Wave Energy Converter," Energies, MDPI, vol. 13(9), pages 1-16, May.

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