A powered augmented fluid turbine for generating electricity from a fluid in motion comprising: a central annular ducted channel extending between an inlet distribution header and an outlet distribution header, the channel comprising a converging section configured to accelerate the fluid received at the inlet distribution header, a turbine assembly for generating electricity, and a diffuser section configured to decelerate the fluid before it exits at the outlet distribution header; a recycle line for transporting the exiting fluid to the inlet distribution header in a closed-loop configuration, the recycle line comprising a recycle line propulsor controllable by a recycle line controller and a recycle line heat exchanger; and a compressed fluid distribution line configured to pressurize the fluid in motion by transporting a compressed fluid from a compressed fluid source to the inlet and outlet distribution headers, the compressed fluid distribution line controllable by at least one pressure controller.

An energy transmission system for a fluid line having a generator unit with a power supply unit that can be arranged at a first location of the fluid line and at least one consumer unit having at least one consumer that can be arranged at a second location of the fluid line spaced apart from the first location is disclosed. The generator unit has a pressure surge generator connected to the power supply unit and the pressure surges can be generated and introduced into the fluid located in the fluid line, and the consumer unit has a pressure surge transducer that is connected to the at least one consumer by the pressure surges introduced into the fluid and can be converted into electrical energy that can be supplied to the at least one consumer.

A hydroelectric facility for generating electrical energy from the flow of water circulating in a water network, includes at least one cross-flow pico-turbine mounted on a shaft extending perpendicular to a direction of the water flow, the pico-turbine including a substantially annular blade installed in the water flow in order to generate a mechanical energy of rotation, at least one generating unit, installed outside of the water flow and coupled to the shaft of the pico-turbine in order to transform the mechanical energy of rotation into electrical energy, at least one measurement and control unit, installed outside of the water flow, connected to the generating unit, controlling the distribution of the collected electrical energy as well as the rotation of the pico-turbine depending on the characteristics of the water flow.

A turboexpander can operate as a microgrid electric generator for islanding operations. The turboexpander can recover energy lost during a pressure letdown sequence to generate electricity. Pressurized process gas can cause a turbine to rotate, thereby rotating a rotor within a stator of the turboexpander. A power electronics can include an islanding mode inverter to output an alternating current that comprises a frequency and an amplitude compatible with powering a load. The power electronics can include a battery that is charged by the turboexpander and can provide power for starting up the turboexpander. The power electrics can include a bidirectional inverter to send excess power from the turboexpander to a power grid and to receive power from the power grid for start-up.

An energy conversion system comprising: a riser conduit comprising a first liquid; a down-comer comprising a second liquid, the down-comer in fluid communication with the riser conduit, the second liquid comprising first liquid and finely divided material in suspension such that the second liquid has a higher specific gravity than the first liquid, the down-comer in fluid communication with a first tank and a second tank; a converter device arranged to convert energy of the first liquid into energy for output from the energy conversion system, and to discharge the first liquid thereafter; and a recirculator arranged to recirculate third liquid to maintain the finely divided material in suspension, the third liquid comprising second liquid and further finely divided material in suspension. The recirculator is arranged to discharge the third liquid to mix with the first liquid from the converter device to form the second liquid. The first tank and the second tank are arranged between the converter device and the down-comer, to receive the first liquid discharged from the converter and to supply the first liquid to the down-comer. Supply of first liquid to the first and second tanks is in use regulated to maintain the height of liquid in the first and second tanks below a predetermined threshold.

(1) Technical field of the invention described in the claims: natural laws regarding water flowing from a high place to a low place, and fluid dynamics regarding potential energy of water. (2) Technical objectives to be solved by the invention: A. Simultaneously producing electric power and pumping up water; B. Installing hydroelectric power stations in unlimited places, that is, guaranteeing that hydroelectric power stations can be installed anywhere; C. Guaranteeing that electricity is produced 24 hours a day, 365 days a year; D. Ending thermal power generation, nuclear power generation, photovoltaic power generation, and wind power generation. (3) The gist of a method for resolving the technical objectives: to guarantee that, in the course of water at a high level falling into a pipe, multiple generators installed in the pipe are operated, thereby producing electric power, that is, the gist is to increase the total amount of produced electric power. This is because the total amount of produced electric power can be increased as desired, while electric power (that is, cost) necessary for pumping up water that has fallen to the original high level is fixed. That is, the number of generators installed in the pipe can be increased as desired (to 100 or 1,000). (4) Important use of the invention: creation of a new-concept pumped-storage hydroelectric power station.

A fluid monitoring apparatus for deployment within a pipe arrangement, includes a measurement device configured to measure data indicative of a fluid property, and an energy harvesting system including a turbine configured to be rotated by a flow of fluid through the pipe arrangement, and a generator coupled to the turbine and configured to generate electrical energy. The fluid monitoring apparatus is configured to use the electrical energy to power the measurement device.

This invention describes the electrical power generation in a sustainable way, by means of a device, which is installed in the downpipes of rainwater collected by the building roofs, capable of transforming the potential energy present in said rainwater runoff into electrical power, where the generated energy is stored in batteries or fed into the utility network.

A pumped-storage hydropower generation tower employing conduit turbines installed in multiple stages, according to the present invention, comprises: a pump (400) disposed in a pumping-up pipe (410) so as to pump up water that fills a lower reservoir (300) to an upper reservoir (200); a water-guide pipe channel (500) having an inlet water-guide conduit (510) connected to the bottom surface on one side of the upper reservoir (200) so as to extend to the position of the lower reservoir (300) along a helical sloping channel (100) such that a flow rate for power generation passes therein; and a conduit turbine unit (600) comprising a driving shaft (2) extending through the center of a conduit (22) through which the flow rate passes, conduit support bodies (4) installed so as to rotate freely while supporting the driving shaft (2), the conduit support bodies (4) having arms (6) extending toward the inner surface of the conduit (22), a propeller (7) fixed to the driving shaft (2) between the conduit support bodies (4) so as to be rotated by movement of the flow rate, and a generator (10) configured to receive rotational power from the driving shaft (2) and to generate electricity, wherein at least two conduit turbine units (600) are disposed in multiple stages along the water-guide pipe channel (500).

A pig is provided for use in pipelines filled with a flowing fluid. The pig includes a pig body, a drive element which may be a propeller disposed on said pig body which can be rotated by the flowing fluid. The pig also includes a generator unit connected to the drive element through which a movement of the drive element may be converted into electrical energy, and a locking means through which the position and/or the speed of the pig inside the pipeline may be fixed. The generator unit is designed to operate as a motor through which the drive element may be made to rotate and which is designed to set a speed for the pig that is different from the flow velocity of the flowing fluid inside the pipeline and that the pig is provided with an energy storage unit for electrical energy, which is connected to the generator unit.