A method and system for generating electrical energy from wind are described. In an example, a method includes capturing wind in an intake on an exterior surface of a structure. The method also includes directing, via a duct, the wind from the intake to a centrifugal fan and, while directing the wind from the intake to the centrifugal fan, compressing and accelerating the wind in the duct. The method further includes receiving, in the centrifugal fan, the wind from the duct and rotating, via the received wind, a fan blade assembly in the centrifugal fan. The method still further includes generating electrical energy, via a generator, based on the rotation of the fan blade assembly.

A high performance hybrid turbine is provided which has an impeller towards which a fluid flow of water, air, or other fluid is conveyed for rotation of the impeller around an axis of rotation. The impeller exploits the thrusts that the fluid flow exerts on the elements constituting the impeller and the thrusts generated by a certain number of airfoils provided inside the elements of the impeller. The high performance hybrid turbine, if used as a wind turbine, can operate at much higher wind speeds than conventional wind turbines.

A method and system for generating electrical energy from wind are described. In an example, a method includes capturing wind in an intake on an exterior surface of a structure. The method also includes directing, via a duct, the wind from the intake to a centrifugal fan and, while directing the wind from the intake to the centrifugal fan, compressing and accelerating the wind in the duct. The method further includes receiving, in the centrifugal fan, the wind from the duct and rotating, via the received wind, a fan blade assembly in the centrifugal fan. The method still further includes generating electrical energy, via a generator, based on the rotation of the fan blade assembly.

The invention relates to a ducted wind turbine having a turbine rotor assembly which extracts kinetic energy from air flowing there past. The rotor assembly includes a plurality of rotor blades having rotor tips at their outermost ends which define a rotor tip sweep circumference. A duct assembly at least partially surrounds said rotor tip sweep circumference and a base platform supports the ducted wind turbine. The duct assembly is mounted on the base platform by way of a weathervane bearing arrangement such that the duct assembly may weathervane around the turbine rotor assembly in response to changes in wind direction. A semi-submersible support platform, wave energy capture apparatus, torsional bearing mechanism and a latticework wind turbine tower associated with the ducted wind turbine are also provided.

A fluid flow turbine having a turbine rotor with a plurality of blades (also known as vanes) for converting the kinetic energy of a flowing fluid into mechanical rotational energy of the turbine rotor is provided by this invention. The plurality of blades are defined by a continuously sinuous curve outer edge that results in the lateral surface of the blades having a lower concave portion for scooping up the horizontal incoming fluid flow and redirecting it to a substantially vertical fluid flow along the lateral surface of the blade. The upper portion of the lateral surfaces of the blades is convex, causing the upper edge of the blades to tail off laterally so that the fluid flow exits the turbine in a substantially vertical direction, instead of turning back upon itself to reduces turbulence of the fluid flow inside the turbine. The fluid flow turbine can comprise a small wind turbine that will produce electrical power at low wind speeds, and can be mounted to the top of a building.

A fluid flow turbine having a turbine rotor with a plurality of blades (also known as vanes) for converting the kinetic energy of a flowing fluid into mechanical rotational energy of the turbine rotor is provided by this invention. The plurality of blades are defined by a continuously sinuous curve outer edge that results in the lateral surface of the blades having a lower concave portion for scooping up the horizontal incoming fluid flow and redirecting it to a substantially vertical fluid flow along the lateral surface of the blade. The upper portion of the lateral surfaces of the blades is convex, causing the upper edge of the blades to tail off laterally so that the fluid flow exits the turbine in a substantially vertical direction, instead of turning back upon itself to reduces turbulence of the fluid flow inside the turbine. The fluid flow turbine can comprise a small wind turbine that will produce electrical power at low wind speeds, and can be mounted to the top of a building.

Propulsion is achieved without expelling matter by a non-inertial subsystem to generate substantial internal Coriolis recoil forces that supply propulsion. A subsystem discretely injects mass (fluids) radially into a non-inertial system having spinning radially-oriented fins mounted on a thin disc. The mass (fluid) is input at the circumference of the spinning system by radially injecting the fluid at high velocity onto one fin at a time at the outer end thereof. The mass centrifugally slows as it travels toward the axis and leaves the system at a very low velocity near the axis of rotation. The resultant integrated non-linear Coriolis reaction or recoil is constrained to acting through the axis of rotation of the spinning vanes by keeping the rotation rate constant. The net integrated reactive force acting on the axis of rotation of the subsystem produces a propulsive force. The injected and retarded fluids are captured near the rotation axis and recirculated to the input injectors. By conserving the reaction mass, the closed propulsion system depends only on the availability of power from a source.

A wind funneling device for energy production. The present system includes a wind funneling device for energy production having a housing with side panels, a top panel and a rear panel forming an interior volume with a front opening and a lower opening. A plurality of parallel planar members is disposed within the interior volume of the housing, wherein each of the plurality of parallel planar members extends parallel to the side panels. One or more wind vanes are secured to the housing and configured to direct the front opening to the direction of the wind. An electric generator is connected to the housing. Air flows toward the generator, producing electricity. A battery is operably connected to the generator to store the electricity for future use. Solar panels and a vibration powered generator may provide an additional source of energy production.

A turbine for extracting kinetic energy from a fluid includes a runner, a turbine-inlet having an entrance and an exit that is adjacent the turbine's runner, and a turbine-outlet having an entrance that is adjacent the runner and an exit. The runner extracts kinetic energy from fluid flowing through the turbine; the turbine inlet directs flowing fluid into the runner; and the turbine-outlet directs flowing fluid away from the runner. When fluid flows through the turbine, the fluid flowing through the turbine-inlet toward the runner flows around and adjacent the fluid flowing through the turbine-outlet away from the runner.

Through dividing all blades into four or more blade groups including a certain number, which is three or more, of the blades, the blade located in the rearmost portion of each blade group in a direction of rotation is selected as a main blade, and remaining blades are selected as auxiliary blades, the length of each of the auxiliary blades is set to be shorter than the length of the main blade, and corresponding inner edge portions are positioned to the front, in the direction of rotation, of a normal line that passes through an outer edge portion of the blade, and an extension line of a chord line that connects the outer edge portion and the inner edge portion of the blade to one another are made to intersect with the main blade that is adjacent to the front in the direction of rotation.