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On survivability of asymmetric wave-energy converters in extreme waves

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  • Madhi, Farshad
  • Yeung, Ronald W.

Abstract

To provide guidance for improving the survivability of asymmetrical wave-energy converters (AWECs), the forces experienced by them in breaking-waves condition were analyzed and reported. “The Berkeley Wedge” (TBW), a highly efficient wave-energy converter and floating breakwater, was used as a canonical study. The forces were obtained by computation using the Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) method and by model-scale experiments. Breaking waves were first generated upstream for both physical and computational modeling by developing appropriate time histories of a wavemaker. Plunging breakers and wave forces from the computational model were verified by experiments for different drafts. To increase the survivability, while retaining the same operational draft of TBW, pressure-relief channel (PRC), a novel scheme that allowed water to flow through TBW was modeled and its effectiveness in extreme-waves was demonstrated computationally. A design was proposed to operate the PRCs so as to increase the survivability of such AWECs.

Suggested Citation

  • Madhi, Farshad & Yeung, Ronald W., 2018. "On survivability of asymmetric wave-energy converters in extreme waves," Renewable Energy, Elsevier, vol. 119(C), pages 891-909.
    • Handle: RePEc:eee:renene:v:119:y:2018:i:c:p:891-909
    DOI: 10.1016/j.renene.2017.07.123
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    References listed on IDEAS

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    1. López, Iraide & Andreu, Jon & Ceballos, Salvador & Martínez de Alegría, Iñigo & Kortabarria, Iñigo, 2013. "Review of wave energy technologies and the necessary power-equipment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 27(C), pages 413-434.
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    5. Tom, Nathan M. & Madhi, Farshad & Yeung, Ronald W., 2019. "Power-to-load balancing for heaving asymmetric wave-energy converters with nonideal power take-off," Renewable Energy, Elsevier, vol. 131(C), pages 1208-1225.
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    9. Shayan Ramezanzadeh & Murat Ozbulut & Mehmet Yildiz, 2022. "A Numerical Investigation of the Energy Efficiency Enhancement of Oscillating Water Column Wave Energy Converter Systems," Energies, MDPI, vol. 15(21), pages 1-20, November.
    10. 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).
    11. Rosa-Santos, Paulo & Taveira-Pinto, Francisco & Rodríguez, Claudio A. & Ramos, Victor & López, Mario, 2019. "The CECO wave energy converter: Recent developments," Renewable Energy, Elsevier, vol. 139(C), pages 368-384.
    12. 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).
    13. Hossain, Nazia & Zaini, Juliana & Mahlia, T.M.I. & Azad, Abul K., 2019. "Elemental, morphological and thermal analysis of mixed microalgae species from drain water," Renewable Energy, Elsevier, vol. 131(C), pages 617-624.

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