Provided herein is a system and method for heat exchange of a vehicle. The system comprises an enclosure disposed on the vehicle. The enclosure comprises a vent at a base of the enclosure. The enclosure houses one or more sensors. The enclosure comprises a fan disposed at a base of the enclosure. The heat exchange system comprises an deflector disposed on the vehicle outside the enclosure and configured to direct an airflow into the vent of the enclosure. The heat exchange system comprises a motor configured to: generate electricity from the airflow and selectively supply electricity to operate the fan. The heat exchange system comprises a controller configured to adjust the deflector and regulate an amount of electricity supplied from the motor to the fan.

A vertical axis turbine includes a rotatable hub assembly that is configured to be connected to an energy sink and rotatable about an axis of rotation. At least two blades are mounted on the hub assembly, each blade including a leading edge and a trailing edge, the blades being oriented so that the respective leading edges face in a common rotational direction. Each blade further includes a straight section that is substantially parallel to the axis of rotation and two helical sections, the straight section being interposed between the helical sections, and the helical sections extending at least partially around the axis of rotation.

The present invention relates to an electric power system for converting wind energy into electric energy, comprising a duct for air, the duct comprising a floor, a first and a second wall, a roof, defining an air inflow direction towards, a turbine having a diameter, and being located adjacent to or at least partially in the duct; and defining together with the duct an air outflow direction wherein an area free of pressure and/or turbulence increasing obstructing elements, extending in the resultant air outflow direction of the turbine over a length of at least one, and preferably more than two times the turbine diameter, measured from the centre of rotation of the turbine. The invention further relates to a building comprising such system.

A vertical axis wind turbine (VAWT) with improved and optimized wind-directing, wind-shaping, and wind-power conversion features is disclosed. The shapes of these features directly affect the ability of the VAWT to use the power of moving air, such as wind, to spin a rotor and create torque on a rotor shaft to generate electricity. The wind-power-conversion mechanical efficiency of the invention is significantly improved over previous efforts, to the point that the invention can convert wind energy into electrical power at a price-to-performance ratio that competes with or surpasses existing alternative energy technologies.

Various multi-stage radial turbine configurations that provide highly efficient momentum transfer between a fluid and the mechanical interface in both power producing and power consuming undertakings.

A wind tunnel system increasing wind flow into and out of a wind turbine is presented. T the wind tunnel system has a wind turbine. The wind turbine converts kinetic energy from wind to electrical energy. The wind tunnel system has a wind inception system that has a netting, a pole and a skin. The wind inception center is useful for increasing wind to the wind turbine. The wind tunnel system further has a wind disperser. The wind disperser receives outputted wind from the wind turbine and disperses the received outputted wind from the wind turbine.

The present invention provides a high-speed wind power generation device and method which converts wind into kinetic mechanical energy efficiently, consistently and with less attenuation of rotational speed than currently available. The high-speed rotation of the inventive device can be attributed to two factors: a curved wing assembly which increases wind flow, and the increased wind flow which hits the spaces between the curved wing assemblies to further increase rotation. Thus, a dual rotational force is created which increases rotational inertia which, in turn, attenuates the rate of rotational slowing, so that the device continues rotating at a high speed for an extended period of time if the wind abates or stops.

A turbine system that harnesses energy from natural atmospheric wind and water currents for power generation and storage in a power storage mode, and in a reverse switched operation, sources current to the turbine system from storage power to function in a propulsion mode to propel an associated structure (e.g., boat, aircraft).

A high efficiency vertical axis wind turbine (VAWT) comprising two counter-rotating rotors, each comprising a plurality of straight rotor blades. One rotor is placed on a first vertical axis and another rotor is placed on a second vertical axis. The first vertical axis and the second vertical axis are positioned on a support structure extending there between. The support structure, and the first vertical axis of rotation and second vertical axis of rotation, can rotate about an intermediate axis of rotation, which is placed at a midpoint between the first vertical axis of rotation and second vertical axis of rotation. An angled deflector is mounted to the frame at or about the intermediate axis of rotation. During operation, the vertex of the deflector is positioned toward oncoming wind. The deflector comprises two symmetrical deflecting surfaces that extend from the vertex to the rotors. One or more vortex generators are positioned on each deflecting surface.

There may be provided a wind power system that may include a turbine that comprises multiple curved blades that rotate about a vertical axis; wind collectors that surround the turbine; wherein each wind collector comprises a set of facets that define an outlet and an opening that is bigger than the outlet; wherein the outlet faces the turbine; and a ventilation mechanism.