Abstract: A turbine generator system is operable to provide electric power to an electric network connected thereto, and includes a turbine generator apparatus and an output module. The turbine generator apparatus includes a turbine rotor provided with a plurality of blades and rotatable to output a mechanical torque, and a generator coupled to the turbine rotor and to be driven by the mechanical torque to generate driving electric power having a system frequency. The output module is electrically connected to the turbine generator apparatus for converting the driving electric power into output electric power to be provided to the electric network. The generator includes a mechanical filter that is operable, when the turbine generator system has a fault, to resonate in a specified frequency that is based on the system frequency to make the blades of the turbine rotor less sensitive to electromagnetic torque disturbance attributed to the fault.

Abstract: The device according to the invention comprises at least one main reservoir (130A, 130B), the or each main reservoir (130A, 130B) being designed to contain a first batch of fuel. It comprises at least one feed line (144C, 144D) for supplying a propulsion engine (16A, 16B) of the aircraft with the first batch of fuel contained in the main reservoir (130A, 130B). The device (18) comprises at least one auxiliary reservoir (132), designed to contain a second batch of fuel separate from the first batch of fuel, the auxiliary reservoir (132) being connected to the main reservoir (130A, 130B). The device (18) comprises an intake line (160) for bringing the second batch of fuel contained in the auxiliary reservoir (132) toward a combustion chamber of the aircraft independent of the or each engine (16A, 16B) of the aircraft.

Abstract: A preferred embodiment includes a system for power generation through movement of fluid having a variety of configurations and implementations. One preferred embodiment includes a system for power generation through movement of fluid includes a power generating cell with a generally cylindrical housing a ring for rotating disposed in said housing, one or more impellers fixedly coupled to said ring, and a generator operably coupled to said ring for receiving energy from the one or more impellers in which fluid is disposed about one or more impellers for creating energy.

Abstract: A pressure reduction turbine for a hydrocarbon well stream driving a hydraulic pump, and the turbine has two cog wheels mounted laterally to a well stream. A deflector plate is positioned at the well inlet to split and direct the well stream towards the outsides of the cogwheels and to drive them with opposite rotation. The turbine is designed to give a large pressure drop. Ceramics is used in the turbine housing, in the turbine inlet and in the turbine outlet, to withstand erosion wear. A hydraulic pump is supplied with collective torque via the turbine shaft, supported by two journal bearings and is connected to the pump via a dynamic sealing arrangement. Alternatively the torque from the turbine may be transmitted by to the pump without the dynamic seal, via a magnet coupling. In an underwater implementation the turbine with the pump are equipped with an arrangement for connection or disconnection via an underwater tool system, so that the equipment may be pulled and installed from a surface vessel.

Abstract: A gas turbine engine arrangement comprises a core engine, a power turbine and a propulsor. The core engine comprises at least one compressor and at least one turbine arranged to drive the at least one compressor and the core engine is arranged in a casing. The power turbine is positioned downstream of the at least one turbine and the power turbine is arranged to drive the propulsor. An electrical machine is arranged upstream of the at least one compressor. The electrical machine comprises a stator and a rotor and the electrical machine comprises a motor/generator. A first clutch selectively connects the rotor of the electrical machine to the power turbine and a second clutch selectively connects the rotor of the electrical machine to the at least one compressor of the core engine.

Abstract: The invention relates to a method for improving the propulsion efficiency of vessels. The improvement is obtained by utilizing wave induced variations in propeller inflow, i.e. the speed of water flowing towards the propeller. The wave induced water speed variation is used to calculate the propeller speed in a way so that the propeller speed is optimal with respect to the total propulsion efficiency. The optimal propeller speed is determined by solving an optimization problem formulated as the maximization of the ratio of energy delivered by the propeller and the energy delivered to the propeller. The method may be used for vessels with one or more propellers.

Abstract: A variable speed generator for producing AC electrical power includes an alternator to generate a first AC current, and a first rectifier which rectifies the first AC current from the alternator; a main exciter having a first field winding which receives the rectified first AC current and a first armature which produces a second AC current in response; a second rectifier which rectifies the second AC current from the first armature; a main generator having a second field winding which receives the rectified second AC current and a second armature which produces an output AC current in response; and a control arrangement for activating a selected pole configuration. The second field winding provides a plurality of selectively activatable pole configurations which differ in the number of their poles, such that the frequency of the output AC current can be varied by switching between the pole configurations.

Abstract: Briefly stated, in accordance with the present subject matter, a generator system is provided. The assembly includes a turbine to be driven by exhaust air and a casing surrounding the turbine. The exhaust air issues from an exhaust structure. The turbine and the casing are each supported independently of the exhaust structure by a support structure. A generator is mechanically coupled to the turbine. The support structure is proportioned to mount the generator system in a selected juxtaposition with a preselected exhaust structure. A generator provides power to an output conductor. Power conditioning apparatus may be included in the system or may be located remotely.

Abstract: A fluid-driven, electricity-generating system and method are provided for a data center with a fluid transport pipe. The generating system includes a housing coupled in fluid communication with the fluid transport pipe, an impeller disposed within the housing and positioned to turn with flow of fluid across the impeller, one or more magnetic structures disposed to turn with turning of the impeller, and an electrical circuit. Electricity is generated for the electrical circuit with turning of the one or more magnetic structures, and is supplied to an electrical load disposed within or associated with the data center.

Abstract: An exhaust energy recovery and electrical generation system includes a conduit having a first end and a second end, wherein the first end of the conduit is configured to receive a gas flow transmitted by a gas flow channel of a gas flow source and wherein the conduit is configured to transmit the received gas flow from the first end thereof toward the second end thereof. A first blade assembly is coupled to the conduit, wherein the first blade assembly is configured to be moved when the received gas flow is transmitted from the first end of the conduit; and an electrical generator coupled to the first blade assembly to generate electricity when the first blade assembly moves. A cross-sectional area of the first end of the conduit may be less than a cross-sectional area of the gas flow channel.

Abstract: An auxiliary power unit includes a gas generator that produces a flow of gases to drive a free power turbine that directly drives an electric generator. The electric generator is driven by the free power turbine at a desired speed without the use of step down gearing to provide a lighter weight and more cost effective electric power generating system.

Abstract: Provided is an energy storage system configured to accumulate energy for subsequent discharge. One embodiment includes an indirect energy storage assembly configured to accept energy input from a direct storage assembly. The indirect energy storage assembly includes a converter for lifting a mass, a speed reducer coupled to the converter for increasing torque provided, and a mass coupled to the speed reducer for generating potential energy when raised. In one embodiment, the direct energy storage assembly produces energy based on descent of a mass, the descent controlled by operation of a speed increaser coupled to a generator. In one example, the speed increaser provides an input:output ratio of at least 1:100. The speed increaser can be configured based on parameters of the generator (e.g., speed and torque). The mass of the direct energy storage assembly can include a float for lifting the mass responsive to water level.

Abstract: Hydrogen-containing fuel/oxidizer combinations, such as aqueous ammonia and aqueous hydrogen peroxide, are disclosed. Systems and methods using such fuel for generation of energy are also disclosed. The reaction products of the fuels are environmentally benign chemicals such as nitrogen gas and water.

Abstract: An energy recovery system includes a fan and a wind turbine adapted to mount adjacent the fan to recover energy from the air flow generated by the fan.

Abstract: Systems and methods for providing AC power from multiple turbine engine spools are disclosed. An aircraft system in a particular embodiment includes an engine having a first shaft connected and a second shaft. The aircraft system can further include a bus system and a first energy converter including a starter/generator, coupled between the first shaft and the bus system to convert a first variable frequency energy transmitted by the first shaft to a first generally constant frequency energy. A second energy converter can be coupled between the second shaft and the bus system, with the second energy converter including a generator to convert a second variable frequency energy transmitted by the second shaft to a second generally constant frequency energy.

Abstract: “IMPROVEMENT IN ELECTRICAL EQUIPMENT GENERATOR OF ELECTRICAL POWER”, the invention herein refers to improvements in electrical power generating equipment which, due to the construction adopted, allows simplified maintenance at reduced frequency; in addition to useful application in several types of hydro electrical power plants, namely: micro, mini and small sized hydroelectric power plants.

Abstract: Systems for producing vaporous working fluid are provided, including: a first fluid passage configured to convey a working fluid to a first solar heating system, wherein the first solar heating system heats the working fluid to produce a heated working fluid having a temperature t1 and a quality X1; a second fluid passage configured to convey a heat transfer fluid to a second solar heating system to produce a heated heat transfer fluid; and a heat exchanger configured to transfer heat from the heated heat transfer fluid to the heated working fluid. When X1<1, the heat transfer results in an increase in quality of the heated working fluid When X1=1, the heat transfer results in an increase in temperature of the heated working fluid. Methods of using the systems to produce vaporous working fluid are also provided.

Abstract: “IMPROVEMENT IN ELECTRICAL EQUIPMENT GENERATOR OF ELECTRICAL POWER”, the invention herein refers to improvements in electrical power generating equipment which, due to the construction adopted, allows simplified maintenance at reduced frequency; in addition to useful application in several types of hydro electrical power plants, namely: micro, mini and small sized hydroelectric power plants.

Abstract: An installation for producing supplementary electrical energy for an electricity network includes at least first and second water reservoirs, the first water reservoir being situated at a first level and the second water reservoir being situated at a second level lower than the first level, a communicating pipe between the first water reservoir and the second water reservoir being provided with a remote-controlled valve, and a hydro-electric generating system being provided with a pumping installation. The first and/or second water reservoir is integrated in the foundations in the lower portion of an artificial building that needs to be built for a primary function independently of a secondary function of producing electricity. The first water reservoir or the second water reservoir may constitute a common body of water in the vicinity of ground level.

Abstract: An in-pipe hydraulic turbine system includes a pipeline for fluid transport, the pipeline having an inlet and an outlet, and a turbine disposed within the pipeline, between the inlet and the outlet. The turbine is actuated by fluid moving through the pipeline and leaves usable fluid pressure downstream of the turbine.

Abstract: In general, in one aspect, the invention relates to a system to create vapor for generating electric power. The system includes a vessel comprising a fluid and a complex and a turbine. The vessel of the system is configured to concentrate EM radiation received from an EM radiation source. The vessel of the system is further configured to apply the EM radiation to the complex, where the complex absorbs the EM radiation to generate heat. The vessel of the system is also configured to transform, using the heat generated by the complex, the fluid to vapor. The vessel of the system is further configured to sending the vapor to a turbine. The turbine of the system is configured to receive, from the vessel, the vapor used to generate the electric power.

Abstract: “IMPROVEMENT IN ELECTRICAL EQUIPMENT GENERATOR OF ELECTRICAL POWER”, the invention herein refers to improvements in electrical power generating equipment which, due to the construction adopted, allows simplified maintenance at reduced frequency; in addition to useful application in several types of hydro electrical power plants, namely: micro, mini and small sized hydroelectric power plants.

Abstract: An irrigation power system is provided for use with a conventional irrigation conduit having water flow therethrough as a source of hydro energy. In order to convert the hydro energy of the water flow to electrical energy, a power generation module is provided along the irrigation conduit. The electrical energy provided by the power generation module is then provided to a power conditioner to alter the electrical energy to produce a predetermined current. The predetermined current is then sent to a storage device for later use. An irrigation system component then communicates with the storage device to receive electrical power for selective operation of the component.

Abstract: A fossil-fueled power station including a steam generator is provided. A steam turbine is mounted downstream of the steam generator via a hot intermediate superheater line and a carbon dioxide separation device. The carbon dioxide separation device is connected to the hot intermediate superheater line via a process steam line and a backpressure steam turbine is mounted into the process steam line.

Abstract: A saturated steam or weakly superheated steam thermodynamic cycle in an electricity generating plant includes at least a nuclear energy source and a turbine having at least a high-pressure module, a medium-pressure module and a low-pressure module. The steam flows successively through the high-pressure, medium-pressure and low-pressure modules. The steam undergoes a first drying and/or superheating cycle between the high-pressure and medium-pressure modules and also a second cycle comprising at least a drying and/or a superheating process between the medium-pressure module and the low-pressure module.

Abstract: A fossil-fueled power station including a steam turbine is provided. A steam generator is mounted downstream of the steam turbine via a steam return line and a carbon dioxide separation device. The carbon dioxide separation device is connected to the steam return line via a process steam line and a backpressure steam turbine is mounted into the process steam line.

Abstract: A modular heating or cooling system includes a heating and/or cooling unit and a plurality of storage modules that may be releasably connected to the heating and/or cooling unit by a releasable coupling. The storage modules may include a heat exchanger having a thermal transfer bladder filled with eutectic fluid. The storage modules may include a hydroelectric generator and/or turbine assembly placed in-line in a circulation line for transporting heated or cooled fluid to and/or from the heat exchanger, the hydroelectric generator and/or turbine assembly operative to drive an electric light or a fan. A base station in the form of a movable cabinet is also disclosed for storing a plurality of the storage modules. The base station includes circulation lines that attach to fluid supply lines from a heating or refrigeration unit and may include terminals with releasable couplings for connecting to the storage modules stored therein.

Abstract: A gas turbine engine including an electrical assembly operable as at least one of an electric motor and a generator, with an electromagnetic rotor formed in part by a portion of one of a main shaft concentrically and drivingly connected to at least one turbine rotor and a tower shaft directly driven by the main shaft and extending generally radially therefrom.

Abstract: The present invention provides provided a hydroelectric turbine having a stator and a rotor, an array of magnets being fixed to rotor and a corresponding array of coils being fixed to the stator, the turbine further including means for cooling the coils during operation of the turbine, the cooling means preferably taking the form of one or more channels passing through the stator, in close proximity to the coils, in order to allow fluid flow through the channels to cool the coils.

Abstract: A novel cost effective low profile structure that converts and stores solar radiation into heat and electricity for controlled utilization. The inventive material incorporates a large insulated vault or chamber of substantial thermal mass connected to a series of inlet passages and to a solar collector assembly. As solar radiation is collected by the solar collector assembly a temperature gradient is created between the collector and the air that is within the vault resulting in air being drawn out of the chamber and through the collector assembly. This air movement is utilized to rotate turbines that are coupled to the inlet passages generating electricity. The hot air is also captured and utilized. The system provides for an efficient, economical process of harnessing and utilizing solar energy by capitalizing on not only on its thermal nature, but its motive nature as well.

Abstract: A method and system for starting and operating an electrically driven load, e.g. a compressor or pump, by power supply from a mechanical driver, e.g. a turbine or combustion engine, whereby the load is mechanically connected to a first electrical machine, and the mechanical driver is mechanically connected to a second electrical machine. The first electrical machine is electrically interconnected to the second electrical machine at a standstill or when the first and or second machine have low speed. In an acceleration phase, the first electrical machine is accelerated by accelerating the second electrical machine with the mechanical driver. When the first electrical machine has reached a predefined rotational speed, the first machine is synchronized with a local electrical power network and connected it to that network.

Abstract: A downhole assembly including a turbine to be disposed within a wellbore and a rotating array. The rotating array includes magnetic material and is coupled to the turbine. The downhole assembly also includes a magnetostrictive material coupled to the rotating array to strain the magnetostrictive material to induce an electric current in a conductor coupled to the magnetostrictive material.

Abstract: A system to harvest energy from fluid flow includes: an outer body including a flowway; an inner sleeve rotatably coupled to the outer body; and a magnetostrictive material disposed proximate to the inner sleeve to be strained due to a rotation of the inner sleeve in response to a fluid flow in the flowway.

Abstract: An adaptive system for harvesting hydrokinetic energy from flowing fluid uses a hydrofoil-type vane in a flow-way and an electrical power generator to convert torque generated by the oscillating vane to electrical current. The generator may be electromagnetic or piezoelectric. The system includes a control module that measures the oscillation of the vane, the generated torque, or the characteristics of the generated current, and modifies the resistance of the vane or the conversion of the electrical current in response to changes therein. Some systems include a frame that can be anchored in a body of water. Some systems are portable and provide illumination. Some systems are adapted for use as hiking or camping gear and may be inserted into stream beds or used as walking sticks. Some systems are in-line devices. Some systems are adapted as fishing lures.

Abstract: A single shaft steam turbine plant is disclosed with a first and a second low pressure steam turbine located at either end of the shaft. A generator and at least one high-pressure steam turbine are located on the shaft between low pressure steam turbines.

Abstract: The subject of the invention is a method and system for renewable energy store in temperature-pressure tank of energy and conversion to electrical energy. It makes possible conversion of variable stream of renewable energy, especially of wind, tide and the sun, to constant stream of electrical energy. Considerable part of renewable energy stream is accumulated in substance in artificial or natural tank (6). The heat collected in tank (6) is transferred to transmission agent, which as the gas with pressure drives turbine (11) and electrical generator (12). Renewable energy stream sensor (15) gives the information about actual renewable energy stream power to control system (3). Proper steering of: converter (4)/or mirror and heater in the sun energy system version/and control modules (8, 10, 14, 13), additionally using of energy accumulated in rotating mass of turbine rotor (1)/in wind and tides energy system version/gives possibility of receiving constant stream of electrical energy.

Abstract: An electricity generating device includes a generator, a counterweight flywheel, and a power transfer equipment. The counterweight flywheel includes a flywheel body connected to the generator, a clutch set on the flywheel body and a number of weight bodies movably attached to the flywheel body. The power transfer equipment is to drive the flywheel to rotate via the clutch, and in turn, the flywheel body is to drive the generator to generate electricity.

Abstract: An exhaust energy recovery and electrical generation system includes a conduit having a first end and a second end, wherein the first end of the conduit is configured to receive a gas flow transmitted by a gas flow channel of a gas flow source and wherein the conduit is configured to transmit the received gas flow from the first end thereof toward the second end thereof. A first blade assembly is coupled to the conduit, wherein the first blade assembly is configured to be moved when the received gas flow is transmitted from the first end of the conduit; and an electrical generator coupled to the first blade assembly to generate electricity when the first blade assembly moves. A cross-sectional area of the first end of the conduit may be less than a cross-sectional area of the gas flow channel.

Abstract: An exhaust gas turbine generator system for a vehicle that has an internal combustion engine with an exhaust system is provided. The exhaust system comprises a turbine, an electrical generator, a waste gate, and an electronic control module. The turbine is disposed in fluid communication with an exhaust gas system of an internal combustion engine to allow fluid flow between the turbine and the exhaust gas system. The electrical generator connects to the turbine. The waste gate is disposed in fluid communication with the exhaust gas system of the internal combustion engine. The waste gate is positionable between an open position and a closed position in response to an output signal from the electronic control module. The fluid flow in the exhaust gas system to the turbine is reduced when the waste gate is positioned to the open position.

Abstract: A combined-cycle power plant (10) has at least one power train (60) including a steam turbine (24) and a second generator (8) directly driven by the steam turbine (24) and generating alternating current, the output of which generator is connected to a power grid (21) having a given grid frequency (F), and at least one power train (11) of a gas turbine (12) and a first generator (18) driven directly by the gas turbine (12) and generating alternating current with an operating frequency, the output of which generator is connected to a power grid (21) having a predetermined grid frequency. An electronic decoupling device or a variable electronic gear unit (27) decouples the operating frequency from the grid frequency and is arranged between the first generator (18) and the power grid (21). Such a plant allows both flexible steady-state operation with high overall efficiency as well as flexible transient operation.

Abstract: A portable hydroelectric generator that carries its own water supply. A tube with a first opening at one end for receiving fluid from a trough and a second opening at the other end for discharging the received fluid. The tube has an inverted U shape having a side A which extends from the first opening toward the top of the inverted U and a side B which includes a turbine coupled to a generator extends from the top of the inverted U to the second end. Side A has a volume which is smaller than the volume of side B and the second opening is located above the level of the fluid in the trough. When fluid is in the tube, its weight in side B is greater than its weight in side A which causes the fluid to flow from the first opening through the tube and out of the second opening.

Abstract: An organic rankine cycle (ORC) turbo generator for prevention of penetration of a working fluid is provided, which can block penetration of the working fluid from a turbine into a generator, thereby improving the efficiency of power generation. The turbo generator comprises: a turbine including a turbine housing, a turbine blade and a fluid injection nozzle; a generator including a generator housing connected to the turbine housing, a rotor rotatably mounted inside the generator housing and a rotary shaft mounted to the turbine blade, and a first bearing and a second bearing mounted at the front and rear ends of the rotor; and working fluid penetration-preventing means adapted to block the pressure generated from the turbine so as to prevent the working fluid injected from the fluid injection nozzle from being penetrated into the generator.

Abstract: Disclosed is an energy-regenerating damper that ensures a compression stroke and has a simplified structure. A piston (16) is provided with: a housing (31) fitted inside a cylinder (12) so as to be able to slide against the inner surface of the cylinder; a stator (32) contained in/fixed to the inside of the housing (31); a rotor (33) supported so as to be able to rotate inside the stator (32); and damping valves (34, 35) provided at the top and bottom ends of the housing (31). The housing (31) comprises an upper half (31a) and a lower half (31b) fastened together by bolts (36), and a damper rod (13) is fixed to the top end of the upper half (31a). The upper half (31a) and the lower half (31b) each contain a bearing (39) for supporting the rotor (33).

Abstract: Treating a synthesis gas includes generating a plasma jet from a non-transferred arc torch having a main axis, the jet having a propagation axis substantially collinear with the torch main axis. The plasma torch is mounted on a feed enclosure. The syngas is received at an inlet port of the feed enclosure, downstream from the plasma torch and feeding the syngas so the flow encounters the plasma jet to mix the syngas and plasma jet in a distribution chamber. The mixture is propagated in a reactor downstream from the feed enclosure to convert the syngas into an outlet gas. The reactor is in communication in its upstream portion with the feed enclosure through a flared segment, and has a longitudinal axis that is substantially collinear with the propagation axis of the plasma jet. The outlet gas is extracted via an outlet port and particles are captured by a submerged conveyor.

Abstract: Hydroelectric generators for harnessing potential energy from a flowing liquid source with a varying surface level. Hydroelectric generators may comprise platforms with buoyancies selected to remain suspended in the liquid source at a selected depth. In some examples, generation units may be fixed to the platform, the generation unit including turbines partially submerged in the liquid source, generators drivingly connected to the wheel, and electrical interfaces connected to the generator, the electrical interface configured to connect to an external power system. In some examples, hydroelectric generators may include one or more anchors connected to the platform. In some examples, generation units may include rotors. In some examples, hydroelectric generators may include projections extending into the liquid source and define channels between the projections.

Abstract: Hydroelectric generators, including liquid sources containing liquid, siphons extending from a first end positioned within the liquid source to a second end at a lower elevation than the first end, and generation units configured to receive liquid from the siphon pipe, either directly or through an intermediary collection body. The siphons including siphon pipes, including input segments proximate the first end defining an input opening within the liquid source, discharge segments proximate the second end defining an output opening, and elevated segments extending between the input segments and the discharge segments with a portion of their length above the first ends and the second ends.

Abstract: A split heat recovery steam generator (HRSG) arrangement including a first HRSG coupled to a turbine and thereby receptive of a portion of the exhaust gases to deliver the portion of the exhaust gases to a compressor, a second HRSG coupled to the turbine and thereby receptive of a remaining portion of the exhaust gases, which includes an NOx catalyst and a CO catalyst sequentially disposed therein to remove NOx and CO from the exhaust gases and an air injection apparatus to inject air into the second HRSG between the NOx catalyst and the CO catalyst to facilitate CO consumption at the CO catalyst.

Abstract: A power generating unit consists of an internal combustion engine (1) and a generator (2), the former comprising a crankshaft (8) received in a crankcase (5) and the generator comprising a generator housing (20) connected to the crankcase (5), a stator (36) and a rotor (30) that is connected so as to rotate with the crankshaft (8). The aim is to provide a power generation unit that requires little space and that allows a precise guidance of a rotor designed for the overall unit power. A concentric stub shaft (11) is fixedly connected at the one end to the crankshaft (8) and at the other end to the rotor (30). The generator housing (20), on its side facing the internal combustion engine (1), has a front plate (21) that accommodates a bearing (23) for the sub shaft (11). The rotor (30) is otherwise overhung.

Abstract: An electrical generating assembly 10 which may be selectively used in combination with and/or as part of a municipal wastewater treatment facility 12 and which allows the wastewater treatment facility 12 to generate electrical energy 48,62, 13 as received wastewater 14 is cleaned.

Abstract: The present disclosure provides rotating impeller systems comprising a shaft with a plurality of blades attached to its inner wall. In motor applications, the shaft serves as the electrical and mechanical elements of a pump or vacuum system. In particular, the shaft rotates when energized, and the attached blades create a driving force. The rotating impeller systems of the present disclosure may be used in generator applications, where the shaft serves as the rotor and a housing serves as the stator. Generator applications include wind energy or hydroelectricity.