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

Malin Göteman, Cameron McNatt, Marianna Giassi, Jens Engström and Jan Isberg
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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

Energies, 2018, vol. 11, issue 4, 1-22

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.

Keywords: wave energy; short-crested waves; multidirectional; arrays; parks; multiple scattering; power fluctuations (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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