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Development of a flap-type mooring-less wave energy harvesting system for sensor buoy

Author

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  • Joe, Hangil
  • Roh, Hyunwoo
  • Cho, Hyeonwoo
  • Yu, Son-Cheol

Abstract

To reduce deployment and maintenance costs, a novel wave energy converter (WEC) is proposed for mooring-less sensor buoys. The design concept is based on a small size WEC capable of harvesting wave energy without mooring, which can reduce the installation cost. The proposed wave energy converter consists of a submerged and a floating body, and the submerged body is a self-rectifying wave-induced turbine that uses the rise and fall of waves to turn a rotor. The rotor of the turbine has flap-type blades, which allows a self-rectifying rotation with rising and falling of waves. In this paper, the dynamics of the system is modeled by hydrodynamic equations, and simulations are carried out based on the dynamic model to determine the optimal design parameters of the system. In addition, the power generation in regular and irregular wave conditions and efficiency in irregular waves of the system are estimated. To verify the results of the simulation, a prototype of the system is implemented and tested in a sea trial. The results demonstrate the feasibility of the proposed wave energy converter.

Suggested Citation

  • Joe, Hangil & Roh, Hyunwoo & Cho, Hyeonwoo & Yu, Son-Cheol, 2017. "Development of a flap-type mooring-less wave energy harvesting system for sensor buoy," Energy, Elsevier, vol. 133(C), pages 851-863.
    • Handle: RePEc:eee:energy:v:133:y:2017:i:c:p:851-863
    DOI: 10.1016/j.energy.2017.05.143
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    Cited by:

    1. Oikonomou, Charikleia L.G. & Gomes, Rui P.F. & Gato, Luís M.C., 2021. "Unveiling the potential of using a spar-buoy oscillating-water-column wave energy converter for low-power stand-alone applications," Applied Energy, Elsevier, vol. 292(C).
    2. Harms, Julius & Hollm, Marten & Dostal, Leo & Kern, Thorsten A. & Seifried, Robert, 2022. "Design and optimization of a wave energy converter for drifting sensor platforms in realistic ocean waves," Applied Energy, Elsevier, vol. 321(C).
    3. Wang, Yu-Jen & Lee, Chih-Kuang, 2019. "Dynamics and power generation of wave energy converters mimicking biaxial hula-hoop motion for mooring-less buoys," Energy, Elsevier, vol. 183(C), pages 547-560.
    4. Wang, Mangkuan & Shang, Jianzhong & Luo, Zirong & Lu, Zhongyue & Yao, Ganzhou, 2023. "Theoretical and numerical studies on improving absorption power of multi-body wave energy convert device with nonlinear bistable structure," Energy, Elsevier, vol. 282(C).
    5. Xiao, Han & Liu, Zhenwei & Zhang, Ran & Kelham, Andrew & Xu, Xiangyang & Wang, Xu, 2021. "Study of a novel rotational speed amplified dual turbine wheel wave energy converter," Applied Energy, Elsevier, vol. 301(C).
    6. Sricharan, V.V.S. & Chandrasekaran, Srinivasan, 2021. "Time-domain analysis of a bean-shaped multi-body floating wave energy converter with a hydraulic power take-off using WEC-Sim," Energy, Elsevier, vol. 223(C).
    7. Yin, Xiuxing & Zhao, Xiaowei & Zhang, Wencan, 2018. "A novel hydro-kite like energy converter for harnessing both ocean wave and current energy," Energy, Elsevier, vol. 158(C), pages 1204-1212.
    8. Berenjkoob, Mahdi Nazari & Ghiasi, Mahmoud & Soares, C.Guedes, 2021. "Influence of the shape of a buoy on the efficiency of its dual-motion wave energy conversion," Energy, Elsevier, vol. 214(C).
    9. Song, Yang & Wang, Yanhui & Yang, Shaoqiong & Wang, Shuxin & Yang, Ming, 2020. "Sensitivity analysis and parameter optimization of energy consumption for underwater gliders," Energy, Elsevier, vol. 191(C).

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