Energies 2011, 4(10), 1574-1600; doi:10.3390/en4101574
Article

On the Effects of Geometry Control on the Performance of Overtopping Wave Energy Converters

1,* email, 1email and 2email
Received: 14 September 2011; in revised form: 13 October 2011 / Accepted: 14 October 2011 / Published: 19 October 2011
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Overtopping wave energy converters (OWECs) are designed to extract energy from ocean waves based on wave overtopping into a reservoir, which is emptied into the ocean through a set of low-head turbines, and typically feature a low crest freeboard and a smooth impermeable steep slope. In the process of optimizing the performance of OWECs, the question arises whether adapting the slope geometry to the variable wave characteristics at the deployment site (i.e., geometry control) can increase the overall hydraulic efficiency and overall hydraulic power compared to a fixed slope geometry. The effect of five different geometry control scenarios on the overall hydraulic efficiency and overall hydraulic power of OWECs has been simulated for three possible deployment sites using empirical prediction formulae. The results show that the effect of an adaptive slope angle is relatively small. On the other hand, adapting the crest freeboard of the OWECs to the wave characteristics increases the overall hydraulic efficiency and power. Based on the simulations, gains in overall hydraulic power of at least 30% are achievable when applying an adaptive crest freeboard compared to a fixed crest freeboard.
Keywords: wave energy; overtopping; geometry control; slope angle; crest freeboard; hydraulic efficiency; hydraulic power
PDF Full-text Download PDF Full-Text [570 KB, uploaded 19 October 2011 14:25 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Victor, L.; Troch, P.; Kofoed, J.P. On the Effects of Geometry Control on the Performance of Overtopping Wave Energy Converters. Energies 2011, 4, 1574-1600.

AMA Style

Victor L, Troch P, Kofoed JP. On the Effects of Geometry Control on the Performance of Overtopping Wave Energy Converters. Energies. 2011; 4(10):1574-1600.

Chicago/Turabian Style

Victor, Lander; Troch, Peter; Kofoed, Jens Peter. 2011. "On the Effects of Geometry Control on the Performance of Overtopping Wave Energy Converters." Energies 4, no. 10: 1574-1600.

Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert