1089 results about "Hydroelectricity" patented technology

A hydroelectric power generating method and/or apparatus provides one or more inlet pipes perpendicular to a flow of water in a stream or river. The inlet pipes have a length and plural apertures along the length of the at least one inlet pipe. A feedline and a turbine generator combination are interconnected with the inlet pipes. One or more outlet pipes are interconnected with the feedline and the turbine generator combination. The outlet pipes have an elevation lower than the inlet pipe. A flow of water passes through the inlet pipes, the feedline, the turbine generator combination, and the outlet pipes, and generates electricity from the flow of water passing through the turbine generator combination. The hydroelectric power generating method also provides a pressure dissipation device that causes a reduction in the pressure of the water so that the water can be released safely back into the stream or river.

A miniature hydro-power generation system includes an outer housing and an inner housing. The outer housing may receive a flow of liquid flowing in a first direction at a predetermined range of pressure. The flow of liquid may be decreased by a predetermined amount of pressure and increased by a predetermined amount of velocity and channeled to a hydro-generator included in the inner housing with an inlet nozzle. The flow of liquid may be channeled with the inlet nozzle to flow in a second direction that is substantially perpendicular to the first direction. Upon transfer of kinetic energy in the flow of liquid to the hydro-generator, the inner housing may rotate in the second direction. The flow of liquid may then be channeled back to the first direction and out of the housing with an outlet nozzle. The outlet nozzle configured to increase the pressure and decrease the velocity of the flow of liquid to minimized non-laminar flow characteristics.

A method is provided for operating a hydroelectric power generating facility configured for operating in first and second operating modes. The facility includes a turbine driven power generating unit receiving a flow of water through an upstream conduit to generate electrical power. The method comprises computing a first economic value for the generated electrical power when operating in the first operating mode, and computing a second economic value for the generated electrical power when operating in the second operating mode. The method further comprises comparing the first economic value with the second economic value to identify the operating mode that provides the higher economic value, and operating the turbine facility in the identified operating mode.

Invented is a method of making combustion air for a fossil fuel burner, as a coal burning power plant, oil refinery or gas fired household appliance. Combustion air is made from solar, wind, biomass, hydropower or geothermal. A staged progression using lower cost greenhouses, or flatplates, or solarponds, feed warm air to higher cost concentrator solar collectors. Wind energy, biomass, geothermal energy heat and compress combustion air. Hydropower also heats and compresses combustion air. Solar evaporation from salt or impure water creates water or local rain for the hydropower system. Combustion air thus is made economically hot, compressed and high velocity, and placed into a heavily insulated pipes for long distance transmission to a distant power plant.

An improved method and means for transforming kinetic energy into mechanical energy to generate hydroelectric power. A submersible scoop-like composite structure (10) with a hollow, tapered, inner chamber to funnel moving water through a turbine (22). The structure (10) has a hydrodynamically clean outer hull with cambered surfaces to increase the velocity of moving water to enhance the turbine's (22) efficiency. The structure (10) has a large orifice with a protective grill (14). The body of the structure (10) contains a vertical stabilizer petition (13) to keep the structure (10) parallel with the direction of the moving water. The detachable turbine (22) is housed in a tube (11) attached aft of the structure (10). The detachable generator (25A, 25B, 25C) is housed in a protective housing (12A, 12B, 12C) and attached to the turbine housing (11). The turbine (22) is coupled to the generator (25A, 25B, 25C) by a turbine drive shaft (24) through a gear box (23) to a generator drive shaft (26A, 26B, 26C). The turbine drive shaft (24) is supported by a front vertical support (27) and a rear vertical support (28). The generator drive shaft (26A, 26B, 26C) is protected by a generator drive shaft housing (29A, 29B, 29C). The entire structure is attached to an anchor base (16A, 16B, 18A, 18B, 21) by legs (15A, 15B, 17A, 19A, 19B, 20) The anchor base is fixed to a submerged medium. The scoop-like composite structure is formed from rigid material and submerged, whereby it cannot be seen from the surface. The structure is cost effective, efficient, produces no known pollution, and is not susceptible to weather related damage.

A method and apparatus for renewable power generation utilizes the chemical potential dissimilarity between solutions of differing ionic formulations. A train is formed by a sequentially ordered set of a plurality of cells in which each successive cell is related to the preceding cell. Each cell has pumping means and hydro-power generation turbine means to form a closed hydraulic loop configured for specified volumetric and flow capacity. Adjacent cells share semipermeable membranes. Each cell is charged with a brine of specified ionizable inorganic salt quantity and type with the brine being cycled in a controlled concentration-pressure loop, with each of the cells operating at progressively increasing concentration and osmotic pressure ratio. A continuous and constant flow rate of substantially salt-free permeate flux is maintained across each cell, the flux being osmotically induced from low salt concentration water being fed at the first cell in the train and exiting at the last cell along with the discarded high concentration water brine. The salt-free permeate flux is continuously induced, in symbiotic mode, through the shared membranes, driven by the chemical influence of concentration potential field bounded by water of low to no salt concentration on one end of the train and by brine of high salt concentration on the other end of the train with sufficient concentration difference to provide driving force for said plurality of cells, while maintaining adequate concentration difference between adjacent cells to enhance osmosis function, as well as defining a concentration ratio within each cell to ensure a net positive power generation.

A ducted water turbine is configured to be installed in a subsea environment to generate hydroelectric power and broadly includes a turbine housing, a turbine rotor, and a generator. The turbine rotor includes a peripheral rim and a plurality of rotor blades mounted to and extending radially inwardly from the rim. The turbine housing includes a duct that permits water to flow through the housing. The peripheral rim is rotatably mounted in the duct, with the water flow causing the turbine rotor to spin. The turbine rotor is drivingly connected to the generator and powers the generator when the turbine rotor is spun by the water flow.

An electrical power producing wind turbine eliminates the possibility of being struck by lightning, reduces the complexity of gear trains and simplifies maintenance at heights. The wind turbine is electrically isolated from ground to reduce the possibility of being struck by lightning and the generator is located at ground level to simplify maintenance. The turbine blade shaft is directly attached to a hydraulic pump. The hydraulic fluid is transmitted to ground level through dielectric tubing and acts both as an electrical isolating medium and a transmitter of mechanical energy to the generator located at ground level. The wind turbine blade, shaft and hydraulic pump are electrically isolated from the support structure at the upper end.

A power generation assembly for use in generating electrical power from air or water currents includes a rail system forming a loop, a vane assembly having a frame and at least one vane, and a car assembly slidably mounted to the rail, including a linkage portion coupled to the frame of the vane assembly and a power-take-off arrangement includes an element that is operatively coupled to the car assembly and a drive wheel coupled to a generator and configured to take power off the moving car assembly by the drive wheels being rotated by the passing power take off element.

There is provided a hydro-power generating system including a wheel assembly having at least one rotatable wheel. The rotatable wheel is adapted to interface with moving water. The rotatable wheel rotates when contacting moving water, thereby generating power. An elongated rigid structure is provided with at least a portion thereof located above the rotatable wheel. The elongated rigid structure is secured so that the moving water will not cause the elongated rigid structure to move substantially. The wheel assembly includes at least one floatation member wherein the rotatable wheel will only be partially submerged in the moving water. The wheel assembly is connected to the elongated rigid structure so that the wheel assembly is held in place in the moving water. The wheel assembly is slidably connected to the elongated rigid structure so that the rotatable wheel may move vertically as the level of the moving water changes. A funnel and a screen are situated adjacent to and upstream of the wheel assembly.

The invention is a transportable hydroelectric power generating system which is capable of being fully or partially assembled in a factory setting and then transported to a water stream. The system includes water channeling features which enhance the pressure within the system that the water exerts and a secondary pump feature which serves to further supply pressurized water to the impellers on the water wheels. Thus marginal streams may become power generating sites.

Ancient Hydroelectric Company comprises a portable hydroelectricity producing system. Consumers are provided with a cost-effective and reliable system for providing substantially clean electricity generation without obstructing the water source or negatively affecting the environment. The high efficiency portable hydro-electric producing system is for use with a moving water source. The system uses antifreeze with water to provide a more thermally efficient working fluid as used to improve the system's pressure and volume capacity in use.

An improved wave energy converter for use in offshore and deep-sea locations. The wave energy converter is adapted for secure attachment to the bottom of a body of water (e.g., the ocean floor), preferably beyond the breaker zone. The wave energy converter is selectively adjustable in length. A hydraulic power generation system is used to convert the energy present in the waves into hydraulic power that can be use to generate electricity and for other purposes, such as desalinization. The system may include a hydraulic piston assembly, a floatation device that is connected to the piston assembly, high and low pressure hydraulic reservoirs, and a hydraulically driven power generator. The floatation device moves upward in response to rising waves, and downward under the force of gravity in response to falling waves. The system utilizes this downward gravitational force to discharge fluid from the piston assembly, which in turn, drives the power generator. A control system is used to detect water conditions and to selectively adjust the length of the support structure and the fluid flow characteristics to dynamically optimize power generation based on changing water conditions.

A hydraulic power generation system employs a plurality of buckets carried by an endless chain to receive water falling from height and drive the chain, which in turn drives a water pumping device to raise water to the height for automatic and continuous generation of power.

A wind or water turbine mounted atop a support tower or tethered underwater drives a hydro-pumping system. The turbine converts wind or water energy into a driving torque applied to the hydro-pump. The hydro-pump forces water through a pipe transmission system to an onshore facility. On shore, the resultant pressurized fluid-flow propels a hydroelectric generating system to produce electricity or may first be used in a Reverse Osmosis desalinization process and the byproduct in part used to propel a hydroelectric generating system to produce electricity. The cold-water discharge from the hydroelectric generating system and/or from the desalinization process is used for onshore district or power plant cooling purposes.

The present invention relates to the “Magnetic pistons engine”, hereafter called “Maps engine” or “RAT engine” or “engine” that works on the principle of magnetism. It can be used to perform various tasks and functions that involve application of force or displacement of objects. This method provides an environmental friendly, very high efficiency engine that can complement or replace any engines that use fossil fuel, bio-fuel, solar power, wind power, hydro power, electricity, stored energy, or other energy sources.

The invention aims at providing an electricity generation ship capable of comprehensively utilizing renewable energy sources. The electricity generation ship comprises a photovoltaic electricity generation cell panel, a wind electricity generation set and a hydro electricity generation set, and independent photovoltaic electricity generation, wind electricity generation and hydro electricity generation can be carried out. The photovoltaic electricity generation cell panel, the wind electricity generation set and the hydro electricity generation set can be connected into a chip power grid at the same time for grid-connected electricity generation. When the hydro electricity generation set participates in electricity generation, a ship body is generally fixed, and a nose faces water flow. When only the photovoltaic electricity generation cell panel and the wind electricity generation set carry out electricity generation, the ship can run. Offshore wind energy, solar energy and tidal current energy are used for electricity generation to guarantee electricity in the initial stage of development of islands, and the ship can run to various islands and offshore platforms badly in need of electric energy to provide electric energy. Therefore, compared with other ships, the electricity generation ship is remarkable in effect of energy saving and emission reduction, and the emission of greenhouse gases is reduced to a large degree.

An inline hydro electric generation system for harnessing the potential energy of water passing in existing water pipes is provided. The inline hydro electric generation system comprises a housing upon which a rotatable impeller with a plurality of impeller blades is mounted. The housing is affixed to a water pipe so that water passes from the water pipe into the housing subsequently initiating the impeller to mechanically rotate. The impeller is advantageously designed so that only one impeller blade is submerged under water as the impeller is mechanically rotated. An electrical generator is axially coupled to the impeller so that when the impeller rotates, the electrical generator generates electrical power. Subsequently, the water is departs from the housing and is returned into the water pipe to continue its route to its intended recipients. The inline hydro electric generation system provides a low cost and environmentally friendly alternative to conventional energy generation systems.

A pitch drive device capable of emergency operation by adjusting the rotor blade pitch of a wind or water power plant. The pitch drive device includes an inverter device and a three-phase current drive motor preferably a three-phase IPM synchronous motor. A direct current power storage device can be substantially directly connected to an intermediate direct current circuit, at least for emergency operation, between a rectifier device and the inverter device for at least briefly supplying power to the synchronous motor, so that the IPM synchronous motor can be operated under speed control when the intermediate circuit voltage UZK is falling. The device enables speed-controlled emergency operation of the pitch drive device at high torque when an intermediate circuit voltage UZK is falling in emergency operation, wherein the direct current energy storage device can, improve the efficiency as an energy buffer, and reduce current transfer via the rotor slip ring.

A bridge type river and tide water-power and wind-power combined power generation corridor is composed of a full-bridge type river water-power and wind-power combined power generation corridor, a shore bridge type river water-power and wind-power combined power generation corridor and a bridge type tide water-power and wind-power combined power generation corridor which are respectively a combiner of a tree-shaped wind power generation device (1) built on a bridge plate and a tree-shaped water power generation device built below the bridge plate. In order to effectively utilize the abundant water power resources and the wind power resources in China, the bridge type river water power, tide water power and wind power combined power generation technology is provided, the bridge type river water power, tide water power and wind power combined power generation corridor is built by combining the river water power with tide water power and wind power so that natural energy can be effectively utilized for power generation, more electric energy is provided for people, and the degree of dependence on underground resources such as petroleum and coal is decreased.