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The synergy between the backward bent duct buoy and the floating platform

Author

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  • He, Yikuan
  • Zhang, Yongliang

Abstract

The backward bent duct buoy (BBDB) oscillating water column (OWC) wave energy conversion (WEC) is proposed to be co-deployed with the floating platform (FP) to enhance wave energy absorption efficiency and improve FP stability. A coupled analytical model of the freely moving BBDB and FP is established, and the motion response, wave run-up, and energy absorption efficiency are obtained using the structural motion equation and the OWC device characteristic equation. After that, the effects of the BBDB dimensions and the distance between the BBDB and the FP on the energy absorption efficiency and the response amplitude operators (RAOs) of the FP are analyzed. The results demonstrate that the presence of the FP significantly enhances the energy absorption efficiency of the BBDB. Moreover, deploying the BBDB upstream effectively mitigates the motion response of the FP. There are two prominent energy capture intervals, and the energy absorption efficiency can exceed 0.6 at 3.4–5.4 s and 5.8–8.3 s when the distance is 0.35 times the BBDB length. Meanwhile, this distance can also broaden the valley between 4 s and 5.5 s and reduce the wave run-up and RAOs of the FP after the period exceeds 8 s.

Suggested Citation

  • He, Yikuan & Zhang, Yongliang, 2025. "The synergy between the backward bent duct buoy and the floating platform," Renewable Energy, Elsevier, vol. 253(C).
    • Handle: RePEc:eee:renene:v:253:y:2025:i:c:s0960148125012996
    DOI: 10.1016/j.renene.2025.123637
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    References listed on IDEAS

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