Device Characteristics

The force felt by the device, FW, as waves pass over it varies linearly with amplitude and non linearly with wave period, the latter relationship is shown in Figure 8.2. These values are obtained by locking the floater position and measuring the resultant force in expected sea states. The force rises with the wave amplitude and appears to tend towards 7.5 x 105 Nm-1 at large wave periods.

Figure 8.2: Fw per m wave amplitude vs. wave period

The hydrodynamic damping of the device is also a function of the wave period, Figure 8.3, having a maximum value of 7.8 x 104 Ns-1 at a period of 7 seconds and then dropping off at higher periods.

Figure 8.3: Variation of hydrodynamic damping
Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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