Monday, April 26, 2010

What is an Oscillating Wave Column (OWC)?



An oscillating wave column is a method of harnessing wave power through the falling and rising of water (ie: waves), which creates an oscillating air current, which in turn moves a Well’s Turbine.

The total potential power a wave has, provided that the wave exists in deep water (when depth is more than half the wavelength), is approximately (.5)(h^2)(T) kilowatts per meter, where h is wave height, in meters, and T is the wave’s period, in seconds.

An oscillating water column is a tube with one end submerged in water and one end open to the air. The water pushes air out of the tube every time a wave passes through the OWC. A Well’s turbine is placed near the opening which generates power regardless of the direction in which it spins. Unfortunately, most efficient turbines require a steady flow of air, and in the case of an OWC, wind speed and direction are usually very irregular.


"Efficient-Wave-Power-in-Sig_large.png". 17/04/10 http://thefutureofthings.com/upload/items_icons/Efficient-Wave-Power-in-Sig_large.png.

1 comment:

  1. I have designed a similar kind of wave generator, but it is a bit more radical but yet simple in design. My inspiration came from watching the blow holes of Hawaii. It includes a low rpm generator or even a array of dual action turbine generators.I have got some friends and cousins who are mechanical and aeronautical engineers.

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