stations (installations, units or hulls) have been built with a total installed capacity
of more than 800, 000 kW. The number of stations built and the power generated
have increased at the rate of 2.5% and 10% annually, respectively.
Figure 14.29 shows the multiple oscillating water columns developed in the
United Kingdom. The device consists of six air chambers, which are different from
the traditional oscillating water column. The air chamber can be adjusted to correspond to different wave frequencies, so that it can adapt to multiple incident wave
frequencies, so as to increase the wave energy capture rate and the overall wave
energy conversion efficiency. The output flow air can drive the specially designed
self-adaption air turbine generator unit. In order to reduce the application cost and
reliability, the device is mainly used for offshore gas and oil drilling platforms.
Figure 14.30 shows the ocean swell powered renewable energy (OSPREY)
device in Britain. The device is a wave and wind energy dual-purpose nearshore
device. In 1995, the first OSPREY I was manufactured in Britain. It was a 2 MW
Generator Unit Room
Measurement room
Gas
chamber
(a)
(b)
Fig. 14.28 Main and top views of Japan’s ocean power vessel (Mighty Whale). a Main view;
b top view
380
14 Pneumatic Principle and Device of Oscillating Water …
of more than 800, 000 kW. The number of stations built and the power generated
have increased at the rate of 2.5% and 10% annually, respectively.
Figure 14.29 shows the multiple oscillating water columns developed in the
United Kingdom. The device consists of six air chambers, which are different from
the traditional oscillating water column. The air chamber can be adjusted to correspond to different wave frequencies, so that it can adapt to multiple incident wave
frequencies, so as to increase the wave energy capture rate and the overall wave
energy conversion efficiency. The output flow air can drive the specially designed
self-adaption air turbine generator unit. In order to reduce the application cost and
reliability, the device is mainly used for offshore gas and oil drilling platforms.
Figure 14.30 shows the ocean swell powered renewable energy (OSPREY)
device in Britain. The device is a wave and wind energy dual-purpose nearshore
device. In 1995, the first OSPREY I was manufactured in Britain. It was a 2 MW
Generator Unit Room
Measurement room
Gas
chamber
(a)
(b)
Fig. 14.28 Main and top views of Japan’s ocean power vessel (Mighty Whale). a Main view;
b top view
380
14 Pneumatic Principle and Device of Oscillating Water …