摘要:
A system and method for efficient wind power generation is provided. The system includes a shaft that rotates around a vertical axis, a plurality of blades, and a plurality of arms that couple the blades to the shaft. The blades are configured to have a rounded, symmetrical design which minimizes the effects of lift. The blades are also configured to include a notched portion for capturing wind and using it to propel the blades. The blades may also be configured to include winglets, which reduce vortex shedding, drag, and noise, and could also reduce friction on the bearings caused by gravity.
摘要:
The invention relates to a turbine blade for a water turbine, comprising, at least over part of its length, a curved profiled element having a median line created point-symmetrically in relation to a point of symmetry on the chord of the profiled element, half-way down, in such a way as to form an S-shaped curve. The median line splits the profiled element into a first side and a second side. The invention is characterised in that the turbine blade comprises an overflow device between the first side and the second side of the profiled element.
摘要:
A barge generator adapted to generate electrical power from surface currents of a body of water. The barge generator has a plurality of hull portions that form one or more tunnels along the length of the vessel. Hydrodynamic screws are received in the tunnels and coupled to an electrical generator such that water currents communicated through the tunnel impart rotational movement of the screw. A deployable curtain is extensible to funnel the currents towards the barge generator to increase the volume and velocity of water carried through the tunnel.
摘要:
A horizontal-axis wind turbine using airfoil blades with uniform in width and thickness, comprising a tower installed vertically from ground surface, a nacelle rotatable connected to center of a vertical axis on top of the tower, a rotating body axially bonded to the nacelle, and one or more blades connecting and forming a pitch angle on the outer periphery of the rotating body, and the blade having an airfoil shape and having uniform in width and thickness in a longitudinal direction and generating torque from lift about a tip of the blade is provided.
摘要:
A system and method for efficient wind power generation is provided. The system includes a shaft that rotates around a vertical axis, a plurality of blades, and a plurality of arms that couple the blades to the shaft. The blades are configured to have a rounded, symmetrical design which minimizes the effects of lift. The blades are also configured to include a notched portion for capturing wind and using it to propel the blades. The blades may also be configured to include winglets, which reduce vortex shedding, drag, and noise, and could also reduce friction on the bearings caused by gravity.
摘要:
A wave energy converter (10) is capable of floating on a body of water (BW), moving in response to waves (W) occurring in the body of water (BW), and includes a hull (12) connected to a heave plate (14). The wave energy converter (10) is characterized in that the hull (12) is formed from reinforced concrete, a plurality of connecting tendons (16) extend between the hull (12) and the heave plate (14), and a power take off (66) is attached to each connecting tendon (16).
摘要:
A horizontal-axis wind turbine using airfoil blades with uniform in width and thickness, comprising a tower installed vertically from ground surface, a nacelle rotatable connected to center of a vertical axis on top of the tower, a rotating body axially bonded to the nacelle, and one or more blades connecting and forming a pitch angle on the outer periphery of the rotating body, and the blade having an airfoil shape and having uniform in width and thickness in a longitudinal direction and generating torque from lift about a tip of the blade is provided.
摘要:
A bidirectional turbine blade including: a blade root and blade tip; a first face and a second face running between the blade root and blade tip; a cross-sectional profile which is symmetrical about a chord line extending between longitudinal edges of the blade; and a twist of between about 5 and 35 degrees from the chord line, wherein the blade is capable of driving an underwater turbine from flowing water incident at the first face or the second face.