CCell's inner face channels the wave energy towards a strong central core. This amplifies the wave-crest height and wave-trough depth, increasing the pressure differential across the paddle and the power output.
CCell's curved paddle structure is naturally strong (just like an egg), with the paddle theoretically requiring 90% less material to achieve the same strength of a flat design.
The flow both inside and around CCell is smooth with virtually no turbulent losses. Water passing around the outer edge generates additional lift (just like an aerofoil) further increasing the device efficiency.
CCell collects energy by harvesting power from the open sea. Flexible curved guides focus the incoming waves towards a strong central core, which drives hydraulic pistons that extract the power.
The curved shape also creates beneficial pressures on the shore face of the paddle, dramatically increasing the net forces across the paddle, both within wave crests and troughs. Much like the wing of a plane, this effect dynamically increases the catchment width of CCell, leading to an estimate effective width of over 120%.
Ocean waves propagate to shore and are collected by CCell, with an interaction width twice the device width.
Energy within the incoming waves is guided towards a strong central core of the CCell paddle.
Yield Stresses (N/m2)
Material Yield Strength = 290M Pa
A curved structure is naturally stiffer than the flat equivalent for the same width. By curving a flat paddle, 90% less material is required to achieve the same overall stiffness, or alternatively peak stresses are reduced by 80% using the same plate thickness.
Through variations in plate thickness, CCell is designed to be flexible in the guides of the unit and strong in the centre. This further reduces the overall mass while improving the life of the paddle through reduced fatigue.
For first of kind prototypes using aluminum and steel are easily modified during manufacture and testing. Future research will integrate composite materials to reduce weight, simplify manufacturing, and improve performance through the use of double curvature surfaces.
A distinguishing feature of CCell is the smooth transition of energy from the waves to the paddle, which not only maximized energy capture but reduces energy dissipation.
For most wave energy concepts, significant losses arise from:
CCells address all three of these losses, and through careful optimisation is seeking to eliminate turbulence and slamming losses, while significantly reducing dispersion.
CFD simulation of CCell in large waves.
We are obsessed with understanding the physical interaction between waves and CCell. We don't assume, we don't copy, instead we work tirelessly to challenge every perception, validate every assumption and strive to make everything as simple as possible without compromise.
In three years we have:
And we're just getting started !
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