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Arrays of Point-Absorbing Wave Energy Converters in Short-Crested Irregular Waves

Author

Listed:
  • Malin Göteman

    (Department of Engineering Sciences, Uppsala University, 75105 Uppsala, Sweden)

  • Cameron McNatt

    (Mocean Energy, Edinburgh EH9 3BF, UK)

  • Marianna Giassi

    (Department of Engineering Sciences, Uppsala University, 75105 Uppsala, Sweden)

  • Jens Engström

    (Department of Engineering Sciences, Uppsala University, 75105 Uppsala, Sweden)

  • Jan Isberg

    (Department of Engineering Sciences, Uppsala University, 75105 Uppsala, Sweden)

Abstract

For most wave energy technology concepts, large-scale electricity production and cost-efficiency require that the devices are installed together in parks. The hydrodynamical interactions between the devices will affect the total performance of the park, and the optimization of the park layout and other park design parameters is a topic of active research. Most studies have considered wave energy parks in long-crested, unidirectional waves. However, real ocean waves can be short-crested, with waves propagating simultaneously in several directions, and some studies have indicated that the wave energy park performance might change in short-crested waves. Here, theory for short-crested waves is integrated in an analytical multiple scattering method, and used to evaluate wave energy park performance in irregular, short-crested waves with different number of wave directions and directional spreading parameters. The results show that the energy absorption is comparable to the situation in long-crested waves, but that the power fluctuations are significantly lower.

Suggested Citation

  • Malin Göteman & Cameron McNatt & Marianna Giassi & Jens Engström & Jan Isberg, 2018. "Arrays of Point-Absorbing Wave Energy Converters in Short-Crested Irregular Waves," Energies, MDPI, vol. 11(4), pages 1-22, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:964-:d:141673
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    References listed on IDEAS

    as
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    3. Malin Göteman & Jens Engström & Mikael Eriksson & Jan Isberg, 2015. "Fast Modeling of Large Wave Energy Farms Using Interaction Distance Cut-Off," Energies, MDPI, vol. 8(12), pages 1-17, December.
    4. 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.
    5. Babarit, A., 2013. "On the park effect in arrays of oscillating wave energy converters," Renewable Energy, Elsevier, vol. 58(C), pages 68-78.
    6. López-Ruiz, Alejandro & Bergillos, Rafael J. & Raffo-Caballero, Juan M. & Ortega-Sánchez, Miguel, 2018. "Towards an optimum design of wave energy converter arrays through an integrated approach of life cycle performance and operational capacity," Applied Energy, Elsevier, vol. 209(C), pages 20-32.
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    Cited by:

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