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The influence of three-dimensional effects on the performance of U-type oscillating water column wave energy harvesters

Author

Listed:
  • Malara, G.
  • Gomes, R.P.F.
  • Arena, F.
  • Henriques, J.C.C.
  • Gato, L.M.C.
  • Falcão, A.F.O.

Abstract

This paper studies the dynamics and power extraction of a U-Oscillating Water Column (U-OWC) device. A three-dimensional hydrodynamic model, based on the boundary integral equations method, is implemented. The U-OWC width and wave direction are analysed and compared with a two-dimensional model based on the eigen-function expansion method. Results show that as the device width increases, the power extraction per unit width tends to the two-dimensional value. For small converter widths, which are expected to be implemented in practical applications, three-dimensional effects are relevant and provide a systematic improvement in power output per unit width, due to their influence in the device hydrodynamic characteristics.

Suggested Citation

  • Malara, G. & Gomes, R.P.F. & Arena, F. & Henriques, J.C.C. & Gato, L.M.C. & Falcão, A.F.O., 2017. "The influence of three-dimensional effects on the performance of U-type oscillating water column wave energy harvesters," Renewable Energy, Elsevier, vol. 111(C), pages 506-522.
    • Handle: RePEc:eee:renene:v:111:y:2017:i:c:p:506-522
    DOI: 10.1016/j.renene.2017.04.038
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    Citations

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    Cited by:

    1. Scialò, A. & Henriques, J.C.C. & Malara, G. & Falcão, A.F.O. & Gato, L.M.C. & Arena, F., 2021. "Power take-off selection for a fixed U-OWC wave power plant in the Mediterranean Sea: The case of Roccella Jonica," Energy, Elsevier, vol. 215(PA).
    2. Moretti, Giacomo & Malara, Giovanni & Scialò, Andrea & Daniele, Luca & Romolo, Alessandra & Vertechy, Rocco & Fontana, Marco & Arena, Felice, 2020. "Modelling and field testing of a breakwater-integrated U-OWC wave energy converter with dielectric elastomer generator," Renewable Energy, Elsevier, vol. 146(C), pages 628-642.
    3. Malara, Giovanni & Arena, Felice, 2019. "Response of U-Oscillating Water Column arrays: semi-analytical approach and numerical results," Renewable Energy, Elsevier, vol. 138(C), pages 1152-1165.
    4. Guo, Baoming & Ning, Dezhi & Wang, Rongquan & Ding, Boyin, 2021. "Hydrodynamics of an oscillating water column WEC - Breakwater integrated system with a pitching front-wall," Renewable Energy, Elsevier, vol. 176(C), pages 67-80.
    5. Liu, Zhen & Xu, Chuanli & Qu, Na & Cui, Ying & Kim, Kilwon, 2020. "Overall performance evaluation of a model-scale OWC wave energy converter," Renewable Energy, Elsevier, vol. 149(C), pages 1325-1338.
    6. Medina Rodríguez, Ayrton Alfonso & Silva Casarín, Rodolfo & Blanco Ilzarbe, Jesús María, 2022. "The influence of oblique waves on the hydrodynamic efficiency of an onshore OWC wave energy converter," Renewable Energy, Elsevier, vol. 183(C), pages 687-707.
    7. Trivedi, Kshma & Koley, Santanu, 2021. "Mathematical modeling of breakwater-integrated oscillating water column wave energy converter devices under irregular incident waves," Renewable Energy, Elsevier, vol. 178(C), pages 403-419.
    8. Güths, A.K. & Teixeira, P.R.F. & Didier, E., 2022. "A novel geometry of an onshore Oscillating Water Column wave energy converter," Renewable Energy, Elsevier, vol. 201(P1), pages 938-949.
    9. Derong, Duan & Fei, Chen & Hui, Zhang & Xuefeng, Yang & Fang, Zhao, 2020. "Study on capture power of the sealed-buoy wave energy converter in low energy flow density area," Renewable Energy, Elsevier, vol. 152(C), pages 1024-1034.
    10. Moretti, Giacomo & Santos Herran, Miguel & Forehand, David & Alves, Marco & Jeffrey, Henry & Vertechy, Rocco & Fontana, Marco, 2020. "Advances in the development of dielectric elastomer generators for wave energy conversion," Renewable and Sustainable Energy Reviews, Elsevier, vol. 117(C).

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