AquaBuOY scale 1:10 - Energinet.dk

1:50 Scale Experiment HMRC CorkTo verify the performance and optimize the AquBuOY Finavera/AquaEnergy was funded through the Irishgovernment Sustainable Energy Ireland SEI, to conduct 1:50 scale testing at HMRC, Cork, Ireland.The testing and preparation of result took place in January - March 2007. The model tests helped calibrateand validate the numerical model developed by Ramboll. Further the principles of the PTO for experimentaltesting was changed from hydraulic to a mechanic system including springs and friction. The combination ofsprings and friction turned out to provide very similar characteristics as the forces from the hose-pumps. Itwas agreed to incorporate this PTO system in the 1:10 scale testing also.The 1:50 scale model ready for testing at HMRCThe main results from the 1:10 scale model experiments were data produced on performance for a widerange of sea states and damping settings. The numerical model was improved by incorporating of moreaccurate hydrodynamic parameters for the combined float and tube geometry as well as drag resistancemeasured experimentally.The comparison between measured and calculated energy production showed an overall good agreement.The numerical model was transferred from Ramboll to Finavera as part of this project to be used in furtheroptimization an evaluation. The results are described in a confidential report as part of the SEI project.12