Economic low-head hydro and tidal power turbine

Details Economic low-head hydro and tidal power turbine Economic low-head hydro and tidal power turbine

F - Mech Eng,Light,Heat,Weapons

03

B

F03B 3/12 (2006.01) F03B 13/12 (2006.01) F03B 13/26 (2006.01)

Patent

CA 2532734

A reaction turbine system for low-head hydro and tidal power is disclosed. The system consists of multiple Darrieus type turbine sections attached in series along a single horizontal rotating shaft. The Darrieus blades are long, rectangular, perpendicular to fluid flow and have an airfoil shaped cross-section. The blades in each Darrieus section are offset from the blades in the other sections. This greatly reduces the torque pulsation typical of a Darrieus turbine while keeping the simplicity of straight airfoil blades, the ability to generate power from multiple fluid flow directions and a high rotational speed. Such a system can be used in open bi- directional flowing water found in tidal areas or enclosed in one or more fluid flow ducts to efficiently generate low-cost power from a low-head hydro site.

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