• Each WavePiston wing can harvest more than 5 % of the energy contained in a wave.
• Several wings can be put in a row with very little shadow effect.
• At 30 degrees angle between system and wave direction efficiency decreases 30 - 35 %

The test model explained:
The reason for making the experimental work is to study the interaction between the vertical wings and the waves.
Although relatively simple to implement in large scale a system comprising horizontally moving wings and a hydraulic power take off system would be extremely laborious to implement in scale 1:30 due to friction and the need for precision machined hydraulic components. Instead an experimental system was build, comprising a load bearing frame. On the frame vertical support arms are mounted. The upper end of the arms are hinged to the frame. Thus, when a wing is mounted in a sliding bearing in the lower part of a support arm the wing stay in the surface and be

free to move horizontally in the water in a pattern very similar to the movement envisioned for wings on the full scale system. Due to the hinged support of the arm this setup will introduce a minute angular error as the wing will only be true vertical when the arm is perpendicular to the water surface. However, the angular error introduced due to the angular locking of arm and wing is less than 5 degrees and can be ignored.

Test results can be downloaded under documents