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Hydrodynamic performance of a pile-restrained WEC-type floating breakwater: An experimental study

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  • Ning, Dezhi
  • Zhao, Xuanlie
  • Göteman, Malin
  • Kang, Haigui

Abstract

In this paper, a system which integrates an oscillating buoy type wave energy converter with a vertical pile-restrained floating breakwater is introduced. A preliminary experimental study on the hydrodynamic performance of the system is carried out in a wave flume under the action of regular waves. A current controller-magnetic powder brake system is used to simulate the power generation system. The design is verified against published results. The power-take off damping characteristics are investigated, and the current controller-magnetic powder brake system can simulate the (approximate) Coulomb damping force very well. The effects of various parameters, including wave period and wave height, dimensions of the system and excitation current, on the hydrodynamic performance are investigated. Results indicate that the power take-off damping force, draft and relative width between the floating breakwater and the wavelength have a significant influence on the hydrodynamic performance of the system. A range can be observed for which the capture width ratio of the system can achieve approximately 24% while transmission coefficient was kept lower than 0.50 with the proper adjustment of power take-off damping force, and the floating breakwater performs in an effective manner. The new concept provides a promising way to utilize wave energy cost-effectively.

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  • Ning, Dezhi & Zhao, Xuanlie & Göteman, Malin & Kang, Haigui, 2016. "Hydrodynamic performance of a pile-restrained WEC-type floating breakwater: An experimental study," Renewable Energy, Elsevier, vol. 95(C), pages 531-541.
    • Handle: RePEc:eee:renene:v:95:y:2016:i:c:p:531-541
    DOI: 10.1016/j.renene.2016.04.057
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    References listed on IDEAS

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    Cited by:

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    4. Zhang, Hengming & Zhou, Binzhen & Vogel, Christopher & Willden, Richard & Zang, Jun & Geng, Jing, 2020. "Hydrodynamic performance of a dual-floater hybrid system combining a floating breakwater and an oscillating-buoy type wave energy converter," Applied Energy, Elsevier, vol. 259(C).
    5. Cheng, Yong & Xi, Chen & Dai, Saishuai & Ji, Chunyan & Cocard, Margot & Yuan, Zhiming & Incecik, Atilla, 2021. "Performance characteristics and parametric analysis of a novel multi-purpose platform combining a moonpool-type floating breakwater and an array of wave energy converters," Applied Energy, Elsevier, vol. 292(C).
    6. Jin, Peng & Zhou, Binzhen & Göteman, Malin & Chen, Zhongfei & Zhang, Liang, 2019. "Performance optimization of a coaxial-cylinder wave energy converter," Energy, Elsevier, vol. 174(C), pages 450-459.
    7. Kara, Fuat, 2022. "Effects of a vertical wall on wave power absorption with wave energy converters arrays," Renewable Energy, Elsevier, vol. 196(C), pages 812-823.
    8. Cheng, Yong & Li, Gen & Ji, Chunyan & Fan, Tianhui & Zhai, Gangjun, 2020. "Fully nonlinear investigations on performance of an OWSC (oscillating wave surge converter) in 3D (three-dimensional) open water," Energy, Elsevier, vol. 210(C).
    9. Peng, Wei & Zhang, Yingnan & Zou, Qingping & Zhang, Jisheng & Li, Haoran, 2024. "Effect of varying PTO on a triple floater wave energy converter-breakwater hybrid system: An experimental study," Renewable Energy, Elsevier, vol. 224(C).
    10. Bao, Jian & Yu, Dingyong, 2024. "Hydrodynamic performance optimization of a cost-effective WEC-type floating breakwater with half-airfoil bottom," Renewable Energy, Elsevier, vol. 226(C).
    11. Zhang, Hengming & Zhou, Binzhen & Vogel, Christopher & Willden, Richard & Zang, Jun & Zhang, Liang, 2020. "Hydrodynamic performance of a floating breakwater as an oscillating-buoy type wave energy converter," Applied Energy, Elsevier, vol. 257(C).
    12. Wang, Yuhan & Wang, Dongxu & Dong, Sheng, 2022. "A theoretical model for an integrated wave energy extraction system consisting of a heaving buoy and a perforated wall," Renewable Energy, Elsevier, vol. 189(C), pages 1086-1101.
    13. Silva, R.N. & Nunes, M.M. & Oliveira, F.L. & Oliveira, T.F. & Brasil, A.C.P. & Pinto, M.S.S., 2023. "Dynamical analysis of a novel hybrid oceanic tidal-wave energy converter system," Energy, Elsevier, vol. 263(PD).
    14. Xuanlie Zhao & Dezhi Ning & Chongwei Zhang & Haigui Kang, 2017. "Hydrodynamic Investigation of an Oscillating Buoy Wave Energy Converter Integrated into a Pile-Restrained Floating Breakwater," Energies, MDPI, vol. 10(5), pages 1-16, May.
    15. Cheng, Yong & Du, Weiming & Dai, Saishuai & Ji, Chunyan & Collu, Maurizio & Cocard, Margot & Cui, Lin & Yuan, Zhiming & Incecik, Atilla, 2022. "Hydrodynamic characteristics of a hybrid oscillating water column-oscillating buoy wave energy converter integrated into a π-type floating breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
    16. Chen Wang & Zhengzhi Deng & Pinjie Wang & Yu Yao, 2019. "Wave Power Extraction from a Dual Oscillating-Water- Column System Composed of Heave-Only and Onshore Units," Energies, MDPI, vol. 12(9), pages 1-22, May.
    17. Zhao, Xuanlie & Ning, Dezhi, 2018. "Experimental investigation of breakwater-type WEC composed of both stationary and floating pontoons," Energy, Elsevier, vol. 155(C), pages 226-233.
    18. Cheng, Yong & Du, Weiming & Dai, Saishuai & Yuan, Zhiming & Incecik, Atilla, 2024. "Wave energy conversion by an array of oscillating water columns deployed along a long-flexible floating breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 192(C).
    19. Zhao, Xuanlie & Zhang, Lidong & Li, Mingwei & Johanning, Lars, 2021. "Experimental investigation on the hydrodynamic performance of a multi-chamber OWC-breakwater," Renewable and Sustainable Energy Reviews, Elsevier, vol. 150(C).
    20. Chen, Wenchuang & Huang, Zhenhai & Zhang, Yongliang & Wang, Liguo & Huang, Luofeng, 2024. "Hydrodynamic performance of a three-unit heave wave energy converter array under different arrangement," Renewable Energy, Elsevier, vol. 221(C).
    21. Zhao, Xuanlie & Zhang, Yang & Li, Mingwei & Johanning, Lars, 2020. "Hydrodynamic performance of a Comb-Type Breakwater-WEC system: An analytical study," Renewable Energy, Elsevier, vol. 159(C), pages 33-49.
    22. Wei, Yujia & Wang, Chao & Chen, Wenchuang & Huang, Luofeng, 2024. "Array analysis on a seawall type of deformable wave energy converters," Renewable Energy, Elsevier, vol. 225(C).
    23. Chen, Zhongfei & Zhou, Binzhen & Zhang, Liang & Li, Can & Zang, Jun & Zheng, Xiongbo & Xu, Jianan & Zhang, Wanchao, 2018. "Experimental and numerical study on a novel dual-resonance wave energy converter with a built-in power take-off system," Energy, Elsevier, vol. 165(PA), pages 1008-1020.
    24. Chen, Qiang & Zang, Jun & Birchall, Jonathan & Ning, Dezhi & Zhao, Xuanlie & Gao, Junliang, 2020. "On the hydrodynamic performance of a vertical pile-restrained WEC-type floating breakwater," Renewable Energy, Elsevier, vol. 146(C), pages 414-425.
    25. Guo, Baoming & Wang, Rongquan & Ning, Dezhi & Chen, Lifen & Sulisz, Wojciech, 2020. "Hydrodynamic performance of a novel WEC-breakwater integrated system consisting of triple dual-freedom pontoons," Energy, Elsevier, vol. 209(C).

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