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Improving the Amount of Captured Energy of a Point-Absorber WEC on the Mexican Coast

Author

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  • Alejandro Martinez Flores

    (Institute of Engineering, National Autonomous University of Mexico, Circuito Escolar, Mexico City 04510, Mexico)

  • Ayrton Alfonso Medina Rodríguez

    (Department of Ocean and Resources Engineering, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, 2540 Dole Street, Holmes Hall 402, Honolulu, HI 96822, USA)

  • Edgar Mendoza

    (Institute of Engineering, National Autonomous University of Mexico, Circuito Escolar, Mexico City 04510, Mexico)

  • Rodolfo Silva

    (Institute of Engineering, National Autonomous University of Mexico, Circuito Escolar, Mexico City 04510, Mexico)

Abstract

Although there are constant improvements in wave energy converter (WEC) technology, it is crucial to investigate site-specific sea conditions for optimal power absorption and efficiency. This study compares the efficiency of a floating buoy-type WEC device, with three differently shaped floats: a semi-sphere, a cylinder considered suitable for a location near Ensenada, on the Baja California peninsula, and a novel, rounded, semi-rectangular float. A statistical analysis of the wave climate of the last 42 years was performed to define the conditions to which the device is subjected. The WEC location was chosen for shallow waters, using a computational model that solves the modified mild slope equation. The hydrodynamic response of the three float designs was then analyzed in the frequency and time domains, using the software ANSYS AQWA 19.2, to assess the dynamics of the floating body, the forces exerted, and the power absorbed, as well as the suitability of the proposed power take-off (PTO) system. The findings show that the proposed float design absorbs the most energy, with an annual power of 135.11 MW, and that the PTO mechanism is appropriate.

Suggested Citation

  • Alejandro Martinez Flores & Ayrton Alfonso Medina Rodríguez & Edgar Mendoza & Rodolfo Silva, 2024. "Improving the Amount of Captured Energy of a Point-Absorber WEC on the Mexican Coast," Energies, MDPI, vol. 17(7), pages 1-20, April.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:7:p:1755-:d:1371000
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    References listed on IDEAS

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    1. Folley, M. & Whittaker, T.J.T., 2009. "Analysis of the nearshore wave energy resource," Renewable Energy, Elsevier, vol. 34(7), pages 1709-1715.
    2. McCabe, A.P., 2013. "Constrained optimization of the shape of a wave energy collector by genetic algorithm," Renewable Energy, Elsevier, vol. 51(C), pages 274-284.
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