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Hydrodynamic analysis of a novel wave energy converter: Hull Reservoir Wave Energy Converter (HRWEC)

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  • Gunawardane, S.D.G.S.P.
  • Bandara, G.A.C.T.
  • Lee, Young-Ho

Abstract

This paper introduces a novel concept of flap-type wave energy device named the Hull Reservoir Wave Energy Converter (HRWEC). The device is a hybrid of the Pendulum type wave energy converter (PeWEC) and the Pendulor wave energy converter. The device mainly consists of a floating reservoir and a top hinged flap that hangs inside the reservoir. The flap motion is triggered by both the float motion and the fluid motion inside the reservoir and the energy take-off happens through the relative motion between the flap and the float. Because this concept closely resembles the PeWEC, a similar float design is used in the HRWEC to facilitate comparison with available data. The dynamics and power capture are obtained using a frequency domain model, and the power capture is maximized for damping-only control for regular waves. It is shown that this new concept exhibits a broadband response compared to the PeWEC concept, which is linked to an additional mode created by the internal water body motion. As a result, this new concept expected to be suitable candidate for applications in broadband wave climatic conditions.

Suggested Citation

  • Gunawardane, S.D.G.S.P. & Bandara, G.A.C.T. & Lee, Young-Ho, 2021. "Hydrodynamic analysis of a novel wave energy converter: Hull Reservoir Wave Energy Converter (HRWEC)," Renewable Energy, Elsevier, vol. 170(C), pages 1020-1039.
    • Handle: RePEc:eee:renene:v:170:y:2021:i:c:p:1020-1039
    DOI: 10.1016/j.renene.2021.01.140
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    Cited by:

    1. Han, Zhi & Cao, Feifei & Tao, Ji & Shi, Hongda, 2023. "Study on the energy capture spectrum (ECS) of a multi-DoF buoy under random waves," Energy, Elsevier, vol. 279(C).
    2. Cheng, Yong & Fu, Lei & Dai, Saishuai & Collu, Maurizio & Cui, Lin & Yuan, Zhiming & Incecik, Atilla, 2022. "Experimental and numerical analysis of a hybrid WEC-breakwater system combining an oscillating water column and an oscillating buoy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 169(C).
    3. Chen, Weixing & Lin, Xiongsen & Lu, Yunfei & Li, Shaoxun & Wang, Lucai & Zhang, Yongkuang & Gao, Feng, 2023. "Design and experiment of a double-wing wave energy converter," Renewable Energy, Elsevier, vol. 202(C), pages 1497-1506.

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