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THAWT Energy Harvester

Posted September 17, 2008 8:53 AM

From The Engineer:

Successful tests of a new type of tidal turbine have boosted hopes that a full-size prototype can undergo sea trials in 2011. Its developers believe the transverse horizontal axis water turbine (THAWT) could harvest energy from tidal flows more efficiently and at a lower cost than other systems. THAWT is a horizontal rotor with the key advantage that it is scalable. The conventional tidal turbines that it could supersede are similar to the familiar three-bladed wind turbines, each of which intercepts just part of the available flow. The main advantage of THAWT, according to its inventors from Oxford University, is that it can be extended to capture energy from across the entire flow.

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Guru
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#1

Re: THAWT Energy Harvester

09/18/2008 9:39 AM

Adaptation - proving it is NOT too early to apply logic. Very tidy solution!

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Guru
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#2

Re: THAWT Energy Harvester

09/22/2008 12:03 AM

Very interesting development using lateral thinking re the Darreius vertical axis wind turbine, laying it on its side, then enhancing it by adding more blades.

It does appear to be a worthwhile idea, and I'm embarrassed I didn't think of it myself.

The turbine will revolve so slowly, fish should be able to evade the turbine blades.

Underwater noise will cause further damage to cetaceans.

The major problem will then be the usual one, of salt-water corrosion of the metal parts.

Kind Regards....

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