A hanging structure for a wall fan, able to hang a wall fan on a wall, includes a board and a casing. The board to be locked on a wall is provided thereon with at least one first hanging member and at least one first locking member. The casing is provided therein with at least one second hanging member by which the casing can be hung on the first hanging member of the board. The casing is further provided with at least one second locking member to be locked together with the first locking member of the board to have the casing firmly fixed on the board and roughly covering the board. The hanging structure for a wall fan of this invention can simplify aligning, positioning and locking operation and can be firmly hung on a wall to avoid displacement for attaining effect of protection of the wall fan.

Disclosed is a system and method for both consumer and utility scale energy extraction from flow-based energy sources. The passive system may utilize directing perforations on a surface in order to create and air jet vortex generators. Alternatively the system may provide for flow through discrete orifices aligned with the span of an aerodynamic assembly in a co-flow direction, utilizing a Coanda effect. Further additional configurations include directing flow through a perforated surface skin that is near the trailing edge on the suction side. Even further are embodiments for blowing air directly out of the trailing edge of an airfoil. The disclosed systems and methods support a wide variety of scenarios for fluid flow energy extraction, such as wind or water flow, as well as for related products and services.

The present disclosure first uses a pumping device to retrieve water using an internal power source from a water source. Then, in accordance with a wind parameter and a solar parameter, wind-powered and solar-powered pumping devices are selectively engaged to replace the pumping device. The water is stored in the water storage device in a higher place. As the water runs through an inlet pipe, it is pressurized to drive a first hydraulic generation device. Then the water's potential energy is used to drive a second hydraulic generation device as the water is recycled to the water source. The produced electricity is delivered to the pumping device and, if any remaining, then to a light device for illumination.

A turbine (1) with flow diverter (2) comprises a support frame (25) adapted to be anchored to a fixed or movable structure, an impeller (3) rotatably mounted about a rotation axis (R) to the support frame (25) and having a front inlet section for the flow and a plurality of blades (4, 4′, 4″, . . . ) adapted to move continuously upon the rotation produced by the flow between a pushing position and an advancing position in correspondence of the front section, a main flow diverter (2) adapted to be anchored to the support frame (25) and having a peripheral wall (7) adapted to at least partially blind the front section with respect to the flow auxiliary diverter (13) extending from a first section (14) facing one or more blades (4′) in the advancing position to a second section (15) facing one or more blades (4) in pushing position. The auxiliary diverter (13) comprises a plurality of substantially curvilinear conduits (16) in reciprocal side by side position along a substantially radial direction, each conduit (16) having a first opened end (16′) facing the blades (4′) in the advancing position and a second opened. end (16″, 16′″) placed in correspondence of the conveying duet (8).

The invention relates to a device for converting wind energy into electrical energy. The device is comprised of four legs. One of the legs of the frame has an external recess for mounting on a roof ridge. The frame has a horizontally positioned rotor with a hub and at least two vanes and a generator functionally coupled to the rotor arranged in a central area of the opening formed by the frame. The axis of rotation of the rotor is perpendicular to a plane extending through the legs of the frame.

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.

Systems, methods, and apparatuses are provided for generating clean energy. A Savonius vertical-axis wind turbine, including a shaft configured to rotate about a first axis, aerofoil blades transversely mounted with respect to the first axis, on the shaft, transversely extending outwards from the shaft to a first distance from the shaft, a generator coupled to the shaft, the generator configured to generate electricity from rotational energy of the shaft when the shaft rotates about the axis; and a first curved wind shield having a semi-circular shape defined by a curvature, each point of the curvature is a fixed second transverse distance from the shaft, the first curved wind shield positioned at the fixed second transverse distance from the rotating shaft, and the curved wind shield is rotatable about the rotating shaft, at the fixed second distance. In some embodiments, the wind shields increase productive wind circulation to the turbine blades.

A wind turbine assembly comprising a generally cylindrical wind turbine rotor that is supported by a rotor support and operable to rotate about a rotational axis, the rotor comprising a plurality of aerofoil blades with each aerofoil blade having a leading edge, a trailing edge, a suction surface, a pressure surface, and an aerofoil chord having a chord length between the leading edge and the trailing edge, the aerofoil blades being in a generally cylindrical arrangement around the rotational axis with the leading edges at a larger radial separation from the rotational axis than the trailing edges, and the chords being angled relative to radii through the rotational axis such that the suction surfaces and pressure surfaces respectively face generally outwardly and inwardly from and to the rotational axis, wherein the minimum separation (S) between the leading edge of a first aerofoil and the suction surface of an adjacent aerofoil is less than the chord length (L.sub.C), and wherein the location of the maximum thickness of each aerofoil blade (L.sub.Tmax) along the chord (L.sub.C)) is less than 20% of the chord length (L) from the leading edge.

A wind powered cooling system, including a windmill including a transmission rotatably coupled to at least one vane, wherein wind moving past the vane causes the vane to rotate and transmit rotational energy to the transmission; and a cooling system including: a compressor system including a compressor mechanically coupled to the transmission, the compressor including a first member for translating rotational energy of the transmission to movement of the first member with respect to a second member so as to compress a refrigerant fluid stored therein; and an evaporator system including an evaporator in fluid communication with the compressor for expanding and evaporating compressed refrigerant fluid into cold refrigerant gas, wherein the cold refrigerant gas cools air surrounding the evaporator system by convection.

The present invention is a wind direction system. The system includes at least one lower airfoil having a leading edge, front surface, middle surface, rear surface, and trailing edge, and at least one wind turbine mounted above the at least one lower airfoil. The lower airfoil is mounted to a building surface. The front surface of the lower airfoil is angled into an airflow relative to the middle surface. The lower airfoil causes wind airflow traveling over a building to be drawn to an upper surface of the building and be directed towards the wind turbine, resulting greater utilization of the wind and increased power generation through the turbine.