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A 3D BEM Model for the Hydrodynamic Analysis and Design of Heaving WEC Arrays Attached to a Breakwater

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Listed:
  • Alexandros Magkouris

    (School of Naval Architecture & Marine Engineering, National Technical University of Athens (NTUA), 15780 Athens, Greece)

  • Markos Bonovas

    (School of Naval Architecture & Marine Engineering, National Technical University of Athens (NTUA), 15780 Athens, Greece)

  • Theodoros Gerostathis

    (Department of Naval Architecture, School of Engineering, University of Western Attica, 12243 Athens, Greece)

  • Kostas Belibassakis

    (School of Naval Architecture & Marine Engineering, National Technical University of Athens (NTUA), 15780 Athens, Greece)

Abstract

Assessment of the performance of arrays of wave energy converters (WECs) of the type of simple heaving floaters, operating in nearshore and coastal areas, is essential to estimate their power production capacity. The effective design and layout of such WEC farms can be supported by studying the system’s operational characteristics based on the wave climatology of the deployment region. Installation along the exposed side of harbor breakwaters in sea areas with substantial incoming energy potential is a promising option. In this study, a 3D hydrodynamic model based on the boundary element method (BEM) is presented and discussed, aiming to evaluate the performance of WEC arrays consisting of multiple heaving bodies attached to the exposed side of a harbor breakwater, modelled as a vertical wall, considering its reflective effects, as well as hydrodynamic interactions between the multiple floating devices. Numerical results of the predicted power performance for various configurations, including interactions of multiple WECs with the nearshore topography and the breakwater wall, as well as the effects of power take off (PTO) parameters, are presented and discussed. Finally, a case study is presented for a selected coastal site at the port of Heraklion, located in the north-central part of Crete Island in the South Aegean Sea, characterized by relatively increased wave energy potential, using long-term climatological data, illustrating the method and its applicability as a supporting tool for optimal design of WEC arrangements.

Suggested Citation

  • Alexandros Magkouris & Markos Bonovas & Theodoros Gerostathis & Kostas Belibassakis, 2023. "A 3D BEM Model for the Hydrodynamic Analysis and Design of Heaving WEC Arrays Attached to a Breakwater," Sustainability, MDPI, vol. 15(17), pages 1-22, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:17:p:12777-:d:1223582
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    References listed on IDEAS

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    1. Loukogeorgaki, Eva & Michailides, Constantine & Lavidas, George & Chatjigeorgiou, Ioannis K., 2021. "Layout optimization of heaving Wave Energy Converters linear arrays in front of a vertical wall," Renewable Energy, Elsevier, vol. 179(C), pages 189-203.
    2. Vasiliki Stratigaki & Peter Troch & Tim Stallard & David Forehand & Jens Peter Kofoed & Matt Folley & Michel Benoit & Aurélien Babarit & Jens Kirkegaard, 2014. "Wave Basin Experiments with Large Wave Energy Converter Arrays to Study Interactions between the Converters and Effects on Other Users in the Sea and the Coastal Area," Energies, MDPI, vol. 7(2), pages 1-34, February.
    3. Wei Peng & Yingnan Zhang & Xueer Yang & Jisheng Zhang & Rui He & Yanjun Liu & Renwen Chen, 2020. "Hydrodynamic Performance of a Hybrid System Combining a Fixed Breakwater and a Wave Energy Converter: An Experimental Study," Energies, MDPI, vol. 13(21), pages 1-21, November.
    4. Kostas Belibassakis & Markos Bonovas & Eugen Rusu, 2018. "A Novel Method for Estimating Wave Energy Converter Performance in Variable Bathymetry Regions and Applications," Energies, MDPI, vol. 11(8), pages 1-16, August.
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