Disclosed herein are systems and methods for generating electric power from an exhaust wind expelled by an exhaust system having an exhaust outlet. Such systems may comprise, and methods may utilize, a conical framework, a Newtonian turbine, and an electric generator. The conical framework and the Newtonian turbine may be disposed substantially downstream of the exhaust outlet. The Newtonian turbine may be positioned at a first distance from the exhaust outlet, may be substantially concentric with the conical framework, and may be disposed partially or completely within the conical framework. The conical framework may enhance the capture of wind energy by the Newtonian turbine. Thus, a portion of the unused energy from unnatural wind sources can be captured, such as those described herein, and returned to the power grid to enable higher efficiency of machinery operation.

A data center able to use the heat generated by its own operation for energy-saving purposes comprises at least one casing, a heat generating portion, an exhausting pipe, and a power generator. The heat generating portion received in the at least one casing generates heat in operating. The at least one casing defines an exhaust vent and an intake vent. The exhaust vent allows the at least one casing to communicate with the exhausting pipe. Cold air at the intake vent flows into the at least one casing and is heated by the heat generating portion to form a hot airflow. The exhausting pipe carries the hot airflow from the exhaust vent. The power generator is powered by the hot airflow in the exhausting pipe to produce electrical energy.

A system for controlling air flow is provided that includes a damper disposed on a duct, an energy recovery system disposed within the duct a first predetermined distance from the damper and a controller coupled to the damper by a conductor and to the energy recovery system, the controller disposed within the duct a second predetermined distance from the damper.

Energy harvesters (EH) which can effectively harvest wasted vibrational/kinematic energy and convert it into electrical energy for battery-free sensor operation are described herein. The energy harvesters can be integrated with a power management circuit and a wireless sensor for monitoring wind turbine blades. The target application of the energy harvesters includes powering the wireless sensors used for wind turbine blade structural monitoring.

Hydroenergetic motor is the energy converter intended to transform the hydropotential energy into the mechanical work in the form of the torque in such a way that the force of the pressure of the column of the liquid, acting on the ball (Kr) in the nozzle (S) achieves the movement of the chain (VK) with the balls (Kr) first, which is then transferred to the wheel (K) of the device. Due to the fact that the wheel (K) is not in direct contact with the fluid, and whereas, at the same time, the hydroenergetic motor according to the invention can also generate a torque with small and uneven flows, it can be used where the use of conventional hydroelectric converters is not appropriate due to the specific characteristics of the working liquids and specific hydrodynamic flow parameters, for example in sewage systems, in order to exploit the hydro-potential energy of the waste liquid of the sewage system. In those systems the use of a hydroenergetic motor according to the invention is preferred. The installation of the hydroenergetic motor with the purpose of exploiting hydropotential energy of the waste sewage fluid flowing through either one or more building objects may be done at any location in the sewer system in a way that the generator producing electricity is attached to the wheel (K). During operation, the hydroenergetic motor does not emit any byproducts into the environment and this actually makes the hydroenergetic motor the renewable source of energy.

Disclosed is sprinkler system. The system comprises a gate valve. Further, a sprinkler frame is mounted on the gate valve. The sprinkler frame further consists of wires for connection. The system further comprises a generator. The generator is mechanically coupled with a rotor and a generator base. Further the system comprises of an electronic component. The system is housed in a sprinkler housing.

An electric fan-type power generating device with low energy consumption includes a housing receiving an electric motor connected to a first fan. A generator is mounted in the housing and is connected to a second fan. The first and second fans are offset from each other. A power device includes a chargeable battery for supplying electricity to the electric motor that drives the first fan to generate wind power close to the second fan. Air flows around in a housing and generates turbulence to proceed with input and output of air, increasing the heat dissipating effect of the electric motor and the generator. Furthermore, the second fan drives the generator to generate electricity supplied to the chargeable battery. The chargeable battery recycles the electricity and supplies the electricity to the electric motor that operates to generate wind power. Furthermore, the wind energy drives the generator to continue generation of electricity.

A wind turbine generator assembly comprising an enclosure forming an air pathway; one or more wind turbines within the enclosure air pathway for generating power from air flow through the air pathway; a powered induction fan located at the upstream end of the enclosure air pathway for directing and accelerating ambient air flow into the enclosure and along the air pathway; and a powered vacuum fan located within the air pathway downstream from at least one wind turbine, the vacuum fan operating to create a negative pressure downstream from the wind turbine to increase air flow across the wind turbine and increase the efficiency of power generation by the wind turbines. In some embodiments, the air pathway within the enclosure forms a straight path with no turns and has a substantially constant cross-section between the location of the induction fan and the vacuum fan.

A method for heating a wind turbine facility includes: charging a DC link of an electrical converter connected with a wind turbine of the wind turbine facility; heating air inside the wind turbine facility with heat generated by a voltage limiting unit interconnected with the DC link, which includes a resistor adapted for dissipating electrical energy into heat for reducing a voltage in the DC link, when the voltage is above a threshold voltage; wherein the voltage limiting unit is controlled, such that the voltage limiting unit generates heat according to settings defined in a controller of the voltage limiting unit. The heating settings are changed based upon commands from a user interface. Furthermore, the DC link is charged by a grid side converter of the wind turbine facility with power from an electrical grid.

A hydroelectricity and compressed-air power converter system includes a first fill pool, a plurality of internal fill tanks, an external fill tank, a wave channel, a plurality of air-generator systems, a second fill pool, at least one air storage tank, and at least one generator system. The first fill pool is intermittently in fluid communication with the external fill tank through the plurality of internal fill tanks while the external fill tank is intermittently in fluid communication with the second fill pool through the wave channel. The second fill pool is selectively in fluid communication with the first fill pool through the at least one generator system so that a set amount of water can be circulated within the power converter system as it generates compressed-air from the plurality of air-generator systems and hydroelectricity from the at least one generator system.