1 Department of Civil Engineering, The Faculty of Engineering and Science, Aalborg University, VBN2 Hydraulics and Coastal Engineering, The Faculty of Engineering and Science, Aalborg University, VBN3 The Faculty of Engineering and Science, Aalborg University, VBN
Wave Energy Converters (WEC’s) extract wave energy from a limited area, often a single point or line even though the wave energy is generally spread out along the wave crest. By the use of wave reflectors (reflecting walls) the wave energy is effectively focused and increased by approximately 30-50%. Clearly longer wave reflectors will focus more wave energy than shorter wave reflectors. Thus the draw back is the increased wave forces for the longer wave reflectors. In the paper a procedure for calculating the energy efficiency and the wave forces on the reflectors are described, this by use of a 3D boundary element method. The calculations are verified by laboratory experiments and a very good agreement is found. The paper gives estimates of possible power benefit for different wave reflector geometries and optimal geometrical design parameters are specified. On this basis inventors of WEC’s can evaluate whether a specific WEC possibly could benefit from wave reflectors.
Proceedings of 6th European Wave and Tidal Energy Conference: 6th Reflectors To Focus Wave Energy : 29th August – 2nd September 2005, 2005
Wave energy; Energy converter
Main Research Area:
European Wave and Tidal Energy Conference, 2005
Energy Systems Research Unit : University of Strathclyde