Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Fluid-flow control in energy storage and recovery systems

In various embodiments, compressed-gas energy storage and recovery systems feature one or more valves, which may be disposed within end caps of cylinder assemblies in which gas is expanded and/or compressed, for admitting fluid to and/or exhausting fluid from the cylinder assembly.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Efficiency of liquid heat exchange in compressed-gas energy storage systems

In various embodiments, efficiency of energy storage and recovery systems employing compressed air and liquid heat exchange is improved via control of the system operation and/or the properties of the heat-exchange liquid.

Energy Generation System Using Underwater Storage of Compressed Air Produced by Wind Machines

An offshore floating wind farm producing compressed air in varying quantities depending on the wind speed, the compressed air being delivered to a large-volume, thin-walled, underwater storage bladder or tank, the compressed air then being delivered to an electricity-generating power plant to power generators as needed. The system may also include an onshore wind farm that produces compressed air in varying quantities depending on wind speed, the compressed air being delivered directly to the power plant. When compressed air production exceeds the needs of the power plant, the excess compressed air is delivered to the underwater storage tank. When onshore production is inadequate, compressed air is brought from the underwater storage tank to the power plant.

High Output Modular CAES (HOMC)

A compressed air energy storage system integrated with a source of secondary heat, such as a simple cycle gas turbine, to increase power production and to provide power regulation through the use of stored compressed air heated by said secondary heat to provide power augmentation.

Systems and methods for energy storage and recovery using gas expansion and compression

In various embodiments, energy-storage systems are based upon an open-air arrangement in which pressurized gas is expanded in small batches from a high pressure of, e.g., several hundred atmospheres to atmospheric pressure. The systems may be sized and operated at a rate that allows for near isothermal expansion and compression of the gas.

Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange

In various embodiments, efficiency of energy storage and recovery systems compressing and expanding gas is improved via heat exchange between the gas and a heat-transfer fluid.

Compressed air energy storage and power generation apparatus and compressed air energy storage and power generation method

A compressed air energy storage and power generation apparatus includes an electric motor, a compressor, an accumulator, an expander, a generator, and a controller, in which the compressor includes a first compressor of dynamic type and a second compressor of a positive displacement type, during charge of the apparatus, in a case where variation time of predicted variation power exceeds activation stop time of the first compressor, the controller supports a predicted variation power component by performing a unit number control of the first compressor and performing the unit number control and a rotation speed control of the second compressor, and in a case where the variation time of the predicted variation power is equal to or less than the activation stop time of the first compressor, the controller supports the predicted variation power component by performing the unit number control and the rotation speed control of the second compressor.

COMPRESSED AIR ENERGY STORAGE POWER GENERATION DEVICE

This compressed air storage power generation device is provided with: a power demand receiving unit ; a cold heat demand receiving unit ; a power supply adjustment device which adjusts the amount of power generated by a generator ; a cold heat supply adjustment valve which adjusts the amount of cold heat supplied from a first heat medium storage unit to consumer equipment and a control device which controls the power supply adjustment device and the cold heat supply adjustment valve so as to supply the consumer equipment with power and cold heat corresponding to the power demand value and the cold heat demand value. 1. A compressed air energy storage power generation device capable of accumulating renewable energy in a form of compressed air , generating power by using the compressed air as necessary , and supplying power to a consumer facility , comprising:a power demand receiving unit which receives a power demand value of the consumer facility;a cold heat demand receiving unit which receives a cold heat demand value of the consumer facility;an electric motor driven by power generated by use of the renewable energy;a compressor driven by the electric motor;a pressure accumulation unit which accumulates the compressed air compressed by the compressor;an expander driven by the compressed air supplied from the pressure accumulation unit;a power generator driven by the expander;a power adjustment unit which adjusts the amount of power generated by the power generator;a first heat exchanger which cools a first heat medium by exchanging heat between the first heat medium and cold air exhausted from the expander;a first heat medium storage unit which stores as cold heat the first heat medium cooled in the first heat exchanger;a cold heat adjustment unit which adjusts the supply amount of the cold heat from the first heat medium storage unit to the consumer facility; anda control device which controls the power adjustment unit and the cold heat adjustment unit so as to ...

COMPRESSED AIR ENERGY STORAGE POWER GENERATION APPARATUS

A compressed air energy storage power generation apparatus includes a power demand receiving unit that receives a power demand value of a consumer facility. The apparatus includes a first air supply valve that adjusts a flow rate of compressed air to be supplied from a low-pressure tank to an expander, a second air supply valve that adjusts a flow rate of compressed air to be supplied from a high-pressure tank to the expander, and a control device configured to open the first air supply valve according to the power demand value in a state where the second air supply valve is closed when the power demand value is less than a predetermined threshold, and to open the second air supply valve according to the power demand value when the power demand value is equal to or greater than the predetermined threshold. 1. A compressed air energy storage power generation apparatus configured to store input power in a form of compressed air , generate power by using the compressed air as necessary , and supply power to a consumer facility , the compressed air energy storage power generation apparatus comprising:a power demand receiving unit that receives a power demand value of the consumer facility;an electric motor that is driven by the input power;a first compressor that is driven by the electric motor;a first accumulation unit and a second accumulation unit that store the compressed air compressed by the first compressor;an expander that is driven by the compressed air supplied from the first accumulation unit or the second accumulation unit;a generator that is driven by the expander;a first air supply valve that adjusts a flow rate of the compressed air to be supplied from the first accumulation unit to the expander;a second air supply valve that adjusts a flow rate of the compressed air to be supplied from the second accumulation unit to the expander; anda control device configured to open the first air supply valve according to the power demand value in a state where the ...

ENERGY STORAGE BARGE

An Energy Storage Barge provides supplemental energy for a power system when renewable energy sources fail to provide enough hour at peak times. In an embodiment, the Energy Storage Barge is further provided a freeze chamber for pure water and mineral collection. In another embodiment, the Energy Storage barge produces super-chilled air to conduct freeze processing or maintain temperature of a cold storage facility. 1. An offshore compressed air energy storage system comprising:a. a barge, the barge having a deck surface, and one or more pressure vessels attached to the bottom of the deck surface, the one or more pressure vessels providing floatation for the barge, the pressure vessels being in fluid communication with one another via a manifold;b. a power source;c. at least one air compressor provided on the deck surface of the barge, the power source being configured to power the at least one air compressor, the at least one air compressor is configured to pressurize the one or more pressure vessels; andd. a compander provided on the deck surface of the barge, the compander having at least one turboexpander, at least one turbo expander having an input, an output, and a shaft, the compander further having at least one heat exchanger, and the compander having at least one turbocompressor, wherein the compander exhausts a high mass flow of super-chilled air;e. a mass air control valve configured to control compressed air flow from the manifold of the one or more pressure vessels to the turboexpander; andf. a turboexpander and generator set provided on the deck surface of the barge, wherein the turboexpander and generator set receives the high mass flow of super-chilled air from the compander.2. The system of claim 1 , wherein the power source is provided on the deck surface of the barge.3. The system of claim 2 , wherein the power source is one or more wind turbines.4. The system of claim 2 , wherein the power source is one or more photovoltaic cells.5. The system of ...

RAPID-RESPONSE COMPRESSED AIR ENERGY STORAGE SYSTEM AND USING METHOD THEREOF

The present disclosure relates to the field of energy storage, and provides a rapid-response energy storage system and a using method thereof. The system comprises an air storage chamber, a compressor unit, an expander unit, a compressor unit lubrication station, an expander unit lubrication station, a compressor unit oil cooler, an expander unit oil cooler, a compressor unit oil pump and an expander unit oil pump; an outlet of the compressor unit communicates with an inlet of the air storage chamber through a heating pipe inside the expander unit lubrication station, and an outlet of the air storage chamber communicates with a heating pipe inside the compressor unit lubrication station sequentially through a regulating valve and the expander unit; the compressor unit lubrication station, the compressor unit oil pump, an oil way inside the compressor unit and the high-temperature side of the compressor unit oil cooler are sequentially connected end to end to form a first oil circulation loop; and the expander unit lubrication station, the expander unit oil pump, an oil way inside the expander unit and the high-temperature side of the expander unit oil cooler are sequentially connected end to end to form a second oil circulation loop. According to the present disclosure, rapid responses can be achieved and the lubricating oil can be heated without the consumption of external thermal energy. 1. A rapid-response energy storage system , comprising an air storage chamber , a compressor unit , an expander unit , a compressor unit lubrication station , an expander unit lubrication station , a compressor unit oil cooler , an expander unit oil cooler , a compressor unit oil pump , an expander unit oil pump , and an electric motor and a generator respectively connected to the compressor unit and the expander unit , wherein a heating pipe and a temperature sensor are disposed inside each of the compressor unit lubrication station and the expander unit lubrication station;an ...

Method for Liquid Air and Gas Energy Storage

A method for liquid air and gas energy storage (LAGES) which integrates the processes of liquid air energy storage (LAES) and regasification of liquefied natural gas (LNG) at the import terminal through the exchange of thermal energy between the streams of air and natural gas (NG) in their gaseous and liquid states and includes harnessing the LNG as an intermediate heat carrier between the air streams being regasified and liquefied, recovering a compression heat from air liquefier for LNG regasification and utilizing a cold thermal energy of liquid air being regasified for reliquefaction of a part of send-out NG stream with its return to LNG terminal. 1. A method for liquid air and gas energy storage (LAGES) comprising in combination:pumping the liquefied natural gas (LNG) from the tanks of LNG Storage and Regasification (LNGSR) terminal into a co-located Liquid Air Energy Storage (LAES) system for continuous regasifying the LNG in the said system and final injecting the regasified LNG into a transmission pipeline;interchanging a waste thermal energy between the LNG being regasified and the process air being continuously liquefied in the LAES system;consuming a required power from the grid and/or other energy source for production of the liquid air with its storing only in the periods of low demand for energy in the grid;on-demand discharging the said LAES system with generation of the on-peak power delivered into grid through consuming both a stored and directly produced liquid air at a rate exceeding a rate of its direct production; andwherein the improvement comprises in combination:pumping the whole amount of LNG destined for regasification and its delivering into LAES system at the first low pressure and first low temperature during the LAES system discharging;using a minor part of cold thermal energy of discharged liquid air for deep cooling the said delivered LNG down to the second low temperature, which is below the first one;controlled dividing the deeply ...

ENERGY MANAGEMENT WITH MULTIPLE PRESSURIZED STORAGE ELEMENTS

Disclosed techniques include energy management with multiple pressurized storage elements. Energy is obtained from one or more energy sources. Energy requirements are modeled over a first time period and a second time period. A first subset of the energy that was obtained is allocated for storage in a first energy store based on the modeling. A second subset of the energy that was obtained is allocated for storage in a second energy store based on the modeling, where the second energy store comprises a pressurized storage element. Energy is routed to the first energy store from the second energy store based on the modeling. Recovering energy further includes using the energy routed to the first energy store or the second energy store, based on the modeling. 1. A method for energy management comprising:obtaining energy from one or more energy sources;modeling energy requirements over a first time period and a second time period;allocating a first subset of the energy that was obtained for storage in a first energy store based on the modeling;allocating a second subset of the energy that was obtained for storage in a second energy store based on the modeling, wherein the second energy store comprises a pressurized storage element; androuting energy to the first energy store from the second energy store based on the modeling.2. The method of further comprising recovering energy using the energy routed to the first energy store or the second energy store claim 1 , based on the modeling.3. The method of wherein the recovering energy is within an energy grid.4. The method of further comprising routing energy from the energy that was recovered claim 3 , the energy routed to the first energy store claim 3 , or the energy routed to the second energy store back to an energy grid outside the energy grid.5. The method of wherein the routing to the first energy store claim 4 , the routing to the second energy store claim 4 , the recovering claim 4 , and the routing energy back ...

COMPRESSED AIR ENERGY STORAGE SYSTEM

A hydraulic energy flow conversion device is for use in association with a compressed air storage unit and an input device. The input device is for inputting mechanical energy. The hydraulic energy flow conversion device includes a first hydraulic cylinder and a means for decreasing the displacement rate during the compression cycle. The first hydraulic cylinder includes a first hydraulic piston and has a compression cycle, an expansion cycle and a displacement rate. The first hydraulic cylinder is operably connected to the compressed air storage unit. The first hydraulic piston is operably connected to the input device. The energy input device may be a wind turbine. 1. A hydraulic energy flow conversion device for use in association with a compressed air storage unit and an input device for inputting mechanical energy , the hydraulic energy flow conversion device comprising:a first hydraulic cylinder including a first hydraulic piston and having a compression cycle, an expansion cycle and a displacement rate, the first hydraulic cylinder being operably connected to the compressed air storage unit and the first hydraulic piston being operably connected to the input device; anda means for decreasing the displacement rate during the compression cycle.2. The hydraulic energy flow conversion device of wherein the input device provides generally constant power during the compression cycle.3. The hydraulic energy flow conversion device of wherein the means for decreasing the displacement rate is a crank mechanism operably connected between the input device and the first hydraulic piston.4. The hydraulic energy flow conversion device of further including at least a second hydraulic cylinder having a second hydraulic piston claim 3 , the second hydraulic cylinder being operably connected to the compressed air storage unit and the second hydraulic piston being operably connected to crank mechanism such that the compression cycles of the first hydraulic cylinder and the ...

Underwater energy storage system

An underwater energy storage system comprising a container where energy is stored by transporting water between the container and a body of water, is disclosed. 5 The container comprises a water- and gas-tight membrane surrounding a container volume, where the container is rendered mainly incompressible by a fill material comprising densely packed, incompressible objects arranged in the container volume, the fill material forming a mainly incompressible aggregate.

SYSTEM FOR ENERGY STORAGE AND ELECTRICAL POWER GENERATION

A system for energy storage and electricity generation is described. The system includes an energy storage subsystem and an electricity generation subsystem coupled to the energy storage subsystem. The energy storage subsystem is configured to store energy in the form of compressed air at a temperature greater than a temperature of ambient air in the atmosphere. The electricity generation subsystem is configured to produce electricity by utilizing the compressed air stored in the energy storage subsystem at the temperature greater than the temperature of ambient air in the atmosphere. 119-. (canceled)20. A system for energy storage for storing energy in the form of compressed air , comprising: a first air compressing vessel configured to collect water and air from the atmosphere and to compress the air to a predetermined pressure;', 'a first air storage vessel pneumatically communicating with the first air compressing vessel and configured to hold compressed air;', 'a first compressed air manifold pneumatically coupled to the first air compressing vessel and to the first the air storage vessel, and configured to provide pneumatic communication between the first air compressing vessel and the first air storage vessel;', 'a first air inlet manifold pneumatically coupled to the compressed air manifold, and configured to provide air from the atmosphere, so as to compress the air in the first air compressing vessels and to fill the first air storage vessel with the compressed air;', a first air storage valve arranged in the first compressed air manifold between the first air storage vessel and a first coupling point of the first air inlet manifold to the first compressed air manifold and configured for control of passage of the compressed air from the first air compressing vessel into the first air storage vessel;', 'a first compressed air valve arranged in the first compressed air manifold between the first air compressing vessel and the first coupling point, and is ...

SYSTEM FOR ENERGY STORAGE AND ELECTRICAL POWER GENERATION

A system for energy storage and electricity generation is described. The system includes an energy storage subsystem and an electricity generation subsystem coupled to the energy storage subsystem. The energy storage subsystem is configured to store energy in the form of compressed air at a temperature greater than a temperature of ambient air in the atmosphere. The electricity generation subsystem includes an airlift pumping system and a hydro-electric power system driven by the airlift pumping system, and is configured to produce electricity by utilizing the compressed air stored in the energy storage subsystem at the temperature greater than the temperature of ambient air in the atmosphere. 1. A system for energy storage and electricity generation , comprising:an energy storage subsystem configured to store energy in the form of compressed air, wherein the compressed air during storage has a temperature greater than a temperature of ambient air in the atmosphere; andan electricity generation subsystem coupled to the energy storage subsystem, and configured to produce electricity by utilizing the compressed air stored in the energy storage subsystem at the temperature greater than the temperature of ambient air in the atmosphere.2. The system of claim 1 , comprising an air pipeline coupled to the energy storage subsystem via an air control valve claim 1 , the air control valve being configured to regulate the flow of the compressed gas released from the energy storage subsystem such that a desired flow rate of egress of the compressed gas is maintained over specified periods of time through the air pipeline.3. The system of claim 2 , further including a control system coupled to the air control valve arranged in the air pipeline to regulate the flow of the compressed gas through the air pipeline.4. The system of claim 3 , wherein the control system includes:an electronic controller coupled to the air control valve, anda pneumatic flow meter arranged within the air ...

Systems and methods of semi-centralized power storage and power production for multi-directional smart grid and other applications

Systems and methods of semi-centralized energy storage and mobile power outflow for vehicle propulsion comprise at least one energy storage facility receiving energy via an electric grid and at least one mobile vehicle. The energy is generated at a first location, and the energy storage facility is at a second location different from the first location. The second location is closer to end users of the energy than the first location. The energy storage facility produces an energy storage medium at the second location and stores the energy from the first location at the second location in the energy storage medium. The energy storage medium comprises liquid air, liquid oxygen, liquid nitrogen, or a combination thereof. The mobile vehicle includes a prime mover and a cryogenic storage vessel and is configured to carry at least a portion of the energy storage medium in the cryogenic storage vessel and use power from the energy storage medium for mobile vehicle propulsion.

Near Isothermal Combined Compressed Gas/Pumped-Hydro Electricity Storage with Waste Heat Recovery Capabilities

Systems store energy mechanically at a first time and extract the energy at a later time. When excess electricity from renewable sources or during off-peak periods is available, a pump directs a working liquid (L) to pressurize a gas (G) that is confined within a pressure vessel. When electricity from renewable sources is not available or during periods of peak demand or pricing, the pressurized gas (G) directs the working liquid (L) through a hydropower turbine. The turbine drives a generator through a mechanical coupling to provide electricity for powering a load. In addition, the system can leverage (take) any waste heat as the input to boost the efficiency of the system. The described systems function at ground level and are modular and scalable in capacity.

Compressed air energy storage generator

A compressed air energy storage generator includes a motor, a compressor, a pressure accumulator, an expander, a generator, an electric-motor inverter, a generator inverter, a feed command receiver, a discharge command receiver, and a controller. The controller includes a feed determination unit, a discharge determination unit, and an input and output adjustment unit, the feed determination unit being configured to determine whether a feed command value is smaller than minimum charge power, the discharge determination unit being configured to determine whether a discharge command value is smaller than minimum discharge power, the input and output adjustment unit being configured to control, when the feed determination unit determines that the feed command value is smaller than the minimum charge power or when the discharge determination unit determines that the discharge command value is smaller than the minimum discharge power, the inverters to simultaneously drive the motor and the generator.

System for Power Conversion and Energy Storage

A system for power conversion and energy storage is described. In an embodiment the system comprise a DC rotating electrical machine () comprising a DC rotor; an AC rotating electrical machine () comprising an AC rotor; and a (thermo-) mechanical energy storage system (known as a TMESS) (). The TMESS comprises a central shaft, said central shaft charged and discharged with shaft power and selectively mechanically coupled to the DC rotor and to the AC rotor via clutch () to form a shaft train. Some source of DC generation such as photovoltaic cells () feeds electrical power into the DC electrical machine (). There may also be local DC loads () supported by the system. The AC electrical machine () may deliver power to local AC loads (), or draw power from the AC electrical grid (). 1. A system for power conversion and energy storage comprising:a DC rotating electrical machine comprising a DC rotoran AC rotating electrical machine comprising an AC rotor; anda (thermo-)mechanical energy storage system (TMESS) comprising a central shaft, said central shaft operable to charge and discharge the TMESS with shaft power and selectively mechanically coupled to the DC rotor and to the AC rotor to form a shaft train.2. A system for power conversion and energy storage as described in wherein the DC rotor and the AC rotor are selectively mechanically coupled to the central shaft by direct couplings such that rotor speed ratios between the DC rotor claim 1 , AC rotor and the central shaft are unity.3. A system for power conversion and energy storage as described in wherein the DC rotor and the AC rotor are mechanical coupled to the central shaft at all times.4. A system for power conversion and energy storage as described in further comprising a clutch arrangement to mechanically decouple the DC rotor and the AC rotor from the central shaft so that the DC rotating machine and the AC rotating machine form a composite electrical machine claim 1 , said composite electrical machine ...

AUTOMATIC WINS AND PHOTOVOLTAIC ENERGY STORAGE SYSTEM FOR UNINTERRUPTED ELECTRICITY GENERATION AND ENERGY AUTONOMY

Automatic wind and photovoltaic energy storage system for generation of uninterrupted electricity and energy autonomy, characterized in that it consists of wind machines (A) and photovoltaic generators (B) combined or independent which operate mechanically or electrically connected suitable compressors (Γ) that compress air at high pressure while simultaneously removing the heat generated by compression with small heat exchangers (E, E, E, E), by heating diathermic cooling oil and water stored in separate insulated tanks (H, H, H, Z) they drive it to an airtight tank-serpentine coil type tank (M), where it exits and after passing through the air flow distributor in each group of high pressure crosses the groups of heat exchangers (θ) in which the flow flows backwards cooling oil, where its thermal charge is transferred and heats the compressed air before entering the gas turbine and expands to a certain pressure lower and temperature lower the original T. At this point the compressed air flows coming out of the turbine and reheats in the same way as in the first re-heat, that is, by crossing another set of heat exchangers () similar to the first one, but at a lower pressure and re-introducing at the same pressure it exited but at the same temperature as the original Ti. To expanding again to a given pressure corresponding to the next stage according to the thermodynamic analysis. The expansion continues with the intermediate reheats according to the specified stages of the thermodynamic analysis, until after the last reheat in the last stage, inject the quantity of water vapor (steam) stored in a separate insulated tank (Z) into the flow of compressed air expanding the common fluid (compressed air plus steam) at the same pressure and temperature into the turbine (K), achieving approximately a 20% increase in the overall turbine (K) efficiency. The turbine is equipped, by means of a rotary shaft rotary controller, to be able to modulate the supply of compressed air ...

COMPRESSED AIR ENERGY STORAGE POWER GENERATION DEVICE

A CAES power generation device includes a compression/expansion/combined machine, a pressure accumulation unit for storing compressed air, a low temperature water storage tank and a high temperature water storage tank, heat exchangers, and liquid maintaining units. The compression/expansion/combined machine has a function of compressing air using the electric power and a function of expanding the compressed air to generate electric power. The low temperature water storage tank and the high temperature water storage tank store liquid water and are fluidly connected to each other. The heat exchangers exchange heat between the compressed air and the water. The liquid maintaining units pressurize the water flowing through the heat exchangers and maintain the water in a liquid form. 1. A compressed air energy storage power generation device comprising:an electric compressor configured to compress air using electric power;a pressure accumulation unit configured to store compressed air discharged from the electric compressor;an expansion generator configured to generate power by expanding the compressed air supplied from the pressure accumulation unit;a first water storage unit and a second water storage unit configured to store liquid water, and fluidly connected to each other;a first heat exchanger configured to exchange heat between the compressed air flowing from the electric compressor to the pressure accumulation unit and the water flowing from the first water storage unit to the second water storage unit, the first heat exchanger being configured to cool the compressed air and heat the water;a second heat exchanger configured to exchange heat between the compressed air flowing from the pressure accumulation unit to the expansion generator and the water flowing from the second water storage unit to the first water storage unit, the second heat exchanger being configured to heat the compressed air and cool the water; anda liquid maintaining unit configured to maintain ...

Methods of deploying and operating variable-buoyancy assembly and non-collapsible fluid-line assembly for use with fluid-processing plant

Method is for operating fluid-processing plant configured to generate and store pressurized fluid, and spaced apart from body of water. Method includes: (A) positioning variable-buoyancy assembly in body of water in such way that buoyancy force urges variable-buoyancy assembly to move toward surface of body of water; (B) positionally anchoring, at least in part, non-collapsible fluid-line assembly underground in such way that non-collapsible fluid-line assembly extends, at least in part, into body of water; (C) fluidly connecting, via non-collapsible fluid-line assembly, fluid-processing plant and variable-buoyancy assembly together in such way that non-collapsible fluid-line assembly conveys pressurized fluid between fluid-processing plant and variable-buoyancy assembly; and (D) transmitting an anchoring force, via non-collapsible fluid-line assembly, from ground to variable-buoyancy assembly in such way that anchoring force substantially counteracts buoyancy force acting on non-collapsible fluid-line assembly, and anchoring force substantially urges variable-buoyancy assembly to remain below surface of body of water.

Power management using pressure amplification

Disclosed techniques include power management using pressure amplification. An energy conversion requirement for a fluid-based energy management system is determined. The energy management system includes a pump-turbine subsystem connected to one or more pressure amplification pipes. Energy is provided to the energy management system, based on the energy conversion requirement. The energy is transformed using the pump-turbine subsystem connected to one or more pressure amplification pipes. The pump-turbine subsystem is operated at an optimal pressure-performance point for the pump-turbine subsystem. The energy that was transformed is delivered, where the delivering is accomplished using the pump-turbine subsystem connected to one or more pressure amplification pipes. The energy management system is operated by an energy management control system. The energy management control system controls coupling of the energy, the pump-turbine subsystem, and the one or more pressure amplification pipes.

COMPRESSED AIR STORAGE POWER GENERATION DEVICE AND COMPRESSED AIR STORAGE POWER GENERATION METHOD

A compressed air storage power generation device is provided with: a motor which is driven using input electric power; a compressor which is mechanically connected with the motor and compresses air; a plurality of accumulator tank groups A, B, C, D which are in fluid connection with the compressor and in which compressed air obtained by the compressor is stored; a plurality of pressure sensors A, B, C, D which are provided in the accumulator tank groups and which measure pressures of the accumulator tank groups; an expander which is in fluid connection with the accumulator tank groups and driven by means of compressed air supplied from the accumulator tank groups; a generator which is mechanically connected with the expander; and a control unit which, on the basis of the pressures of the respective accumulator tank groups measured by means of the pressure sensors, determines the order of the accumulator tank groups in which to store compressed air for charging, and determines the order of the accumulator tank groups in which to supply compressed air to the expander for discharging. 1. A compressed air storage power generation device comprising:a motor which is driven by input power;a compressor which is mechanically connected to the motor and compresses air;a plurality of pressure accumulation tanks which are fluidly connected to the compressor and in which compressed air compressed by the compressor is stored;a plurality of pressure sensors which are provided in the pressure accumulation tanks and measure pressures of the pressure accumulation tanks;an expander which is fluidly connected to the pressure accumulation tanks and driven by compressed air supplied from the pressure accumulation tanks;a generator which is mechanically connected to the expander; anda control unit which, based on the pressures of the respective pressure accumulation tanks measured by the pressure sensors, determines the order of the pressure accumulation tanks in which the compressed air ...

Energy management using a converged infrastructure

Disclosed techniques include energy management using a converged infrastructure. Access to one or more fluid-based energy storage and generation assemblies is obtained, where each assembly comprises a pump-turbine and a pressure vessel. The fluid of the one or more fluid-based energy storage and generation assemblies includes liquid air. The one or more fluid-based energy storage and generation assemblies are connected to an electrical energy storage subsystem, where the connecting includes an energy interconnect. The energy interconnect is performed without an electrical subsystem intermediary. The energy interconnect includes a local electrical grid. Energy is provided to the one or more fluid-based energy storage and generation assemblies. The providing is adjusted based on feedback to the energy control management system. Electrical energy is delivered from the energy interconnect, wherein the delivering is based on an energy control management system executing on one or more processors.

COMPRESSED AIR ENERGY STORAGE AND POWER GENERATION DEVICE AND COMPRESSED AIR ENERGY STORAGE AND POWER GENERATION METHOD

A compressor compresses air in such a manner that a motor is driven by renewable energy. An accumulator tank stores the air thus compressed. An expander is driven by the compressed air. A generator is mechanically connected to the expander. A first heat exchanger recovers compressed heat. A heat medium tank that stores a heat medium. A second heat exchanger that heats the compressed air. A first pump adjusts an amount of the heat medium to be supplied to the first heat exchanger. A control device controls the first pump to adjust the amount of heat medium to be supplied to the first heat exchanger so as to maintain the heat medium, which is stored in the heat medium tank, at a predetermined first temperature. 1. A compressed air energy storage and power generation device comprising:an electric motor driven by fluctuating input power;a compressor that is mechanically connected to the electric motor and compresses air;an accumulator tank that is fluidly connected to the compressor and stores the air compressed by the compressor;an expander that is fluidly connected to the accumulator tank and is driven by the compressed air supplied from the accumulator tank;a generator that is mechanically connected to the expander and generates power;a first heat exchanger for heating a heat medium by performing heat exchange between the heat medium and the air compressed by the compressor;a heat medium tank that is fluidly connected to the first heat exchanger and stores the heat medium;a second heat exchanger that is fluidly connected to the heat medium tank and serves for heating the compressed air by performing heat exchange between the heat medium supplied from the heat medium tank and the compressed air supplied to the expander;a first flow rate adjusting means for adjusting an amount of the heat medium supplied to the first heat exchanger; anda control device that adjusts an amount of the heat medium supplied to the first heat exchanger by the first flow rate adjusting means ...

ANTI-FOULING DOCKS AND LOW DENSITY FLUID DISPLACEMENT

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may also relate to anti-fouling or reducing fouling structures like docks. 1. A system comprising:a first storage reservoir near the surface of a body of liquid and configured to store a first fluid;a second storage reservoir located below the surface of the body of liquid and configured to store a second fluid which has a higher density than the first fluid and wherein the second fluid is substantially immiscible with said first fluid;a pump; anda generator;wherein the pump, generator, and the first and second reservoir are operatively connected such that electricity is stored by displacing at least a portion of the second fluid water in the second storage reservoir by pumping at least a portion of the first fluid in the first storage reservoir to the second storage reservoir and electricity is generated or discharged by allowing the at least a portion of the pumped first fluid in the second storage reservoir to return to the first storage reservoir; and,wherein the first fluid and the second fluid are both in liquid form.2. The system of wherein the pump and the generator are the same unit.3. The system of wherein said second storage reservoir comprises an expandable or contractible structure.4. The system of wherein said second storage reservoir comprises a bladder claim 1 , a bag claim 1 , or a balloon.5. The system of wherein said second storage reservoir is tethered to the bottom of said water body.6. The system of wherein the first fluid comprises a hydrocarbon liquid.7. The system of wherein the first fluid comprises liquid natural gas.8. The system of wherein the second fluid comprises water.9. The system of which is operatively connected to a unit requiring electricity.10. The system of wherein the body of liquid is a body of oil.11. ...

Underwater energy storage system and power station powered therewith

An underwater energy storage system includes a tank for storing a compressed gas that is adapted to be stored underwater. The tank includes at least one water opening through which water from surrounding environment can flow into and out of the tank, and at least one gas opening through which the compressed gas is received. The underwater energy storage system further includes at least one duct communicating between the at least one opening for gas flow and a source of compressed gas and a compartment constructed over a roof of the tank, wherein said compartment is adapted for receiving weights at a sinking site of the tank.

Low density fluid displacement to store or generate power

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may also relate to anti-fouling or reducing fouling structures like docks.

METHODS, SYSTEMS AND INSTALLATIONS FOR THE COMPRESSION, EXPANSION AND/OR STORAGE OF A GAS

This method is used to manage a pressure accumulator () as a component of an energy storage system, consisting of a work machine (), a collecting tank (), a displacement apparatus () and a pressure accumulator () for storing a pressurised gaseous medium. The pressure accumulator () is partially filled with a liquid medium so as to be able to control the gas storage volume therewith. Feeding compressed gas () into the pressure accumulator () involves removing liquid (). Removing compressed gas () from the pressure accumulator () involves feeding in liquid () so that the storage pressure is kept under control as necessary, in particular is kept constant. To this end, one pressurised unit of gas () is introduced into the pressure accumulator () with the removal of one unit of liquid () from the pressure accumulator () by means of the displacement apparatus () and vice versa. The present method and the present arrangement make it possible to fill the pressure accumulator () completely with and to empty the pressured storage unit () completely of pressurised gas () at a controllable pressure, which leads to improved utilisation of the pressure accumulator volume and thus increases the energy density of the energy storage system. The method further makes it possible to operate the energy storage system at a constant operating point, thus increasing the efficiency of the individual components and of the entire system, and minimising the compression and expansion processes in the pressure accumulator (). 1. A method for managing a pressure storage system with at least one pressure storage tank , the method comprising:filling the pressure storage tank with compressed gas; and/orwithdrawing compressed gas from the pressure storage tank,wherein the pressure storage tank is partially filled with liquid and the rest of the volume is filled with compressed gas, wherein the charging of the pressure storage tank with a unit of compressed gas is accompanied by the withdrawal of a ...

UNDERWATER ENERGY STORAGE SYSTEM AND POWER STATION POWERED THEREWITH

An underwater energy storage system includes a tank for storing a compressed gas that is adapted to be stored underwater. The tank includes at least one water opening through which water from surrounding environment can flow into and out of the tank, and at least one gas opening through which the compressed gas is received. The underwater energy storage system further includes at least one duct communicating between the at least one opening for gas flow and a source of compressed gas and a compartment constructed over a roof of the tank, wherein said compartment is adapted for receiving weights at a sinking site of the tank. 1. An underwater energy storage system comprising:an underwater storage tank for storing compressed air, wherein the tank is formed from a rigid cover forming a cavity therein, wherein the tank includes an opening for air flow through which compressed air is received and is bottomless, and wherein the tank is adapted to float over a bed of the water body;at least one anchoring element holding the underwater storage tank for anchoring the storage tank at a height above the bed of a water body;at least one duct communicating between the opening for air flow and a source of the compressed air.2. The system of wherein the storage tank is dome shaped.3. The system of claim 1 , wherein the storage tank has a shape of a truncated sphere.4. The system of claim 1 , wherein the storage tank is constructed from at least one of metal claim 1 , concrete and a rigid polymer.5. The system of claim 1 , wherein the at least one anchoring element is in a form of a net connected to a weight claim 1 , where the net is adapted for encompassing the storage tank. This application is a continuation of U.S. patent application Ser. No. 15/084,558 filed on Mar. 30, 2016, which is a continuation of U.S. patent application Ser. No. 14/446,400 filed on Jul. 30, 2014, now U.S. Pat. No. 9,309,046, which is a continuation of U.S. patent application Ser. No. 13/577,254 filed on ...

Energy storage and management using pumping

Disclosed techniques include energy storage and management using pumping. An energy source is connected to a pump-turbine energy management system, wherein the pump-turbine energy management system includes a pump-energy storage subsystem. Energy from the energy source is stored in the pump-energy storage subsystem. One or more processors are used to calculate a valve-based flow control setting for recovering energy from the pump-energy storage subsystem. One or more valves in the pump-energy management system are energized, wherein the energizing enables energy recovery. Energy is recovered from the pump-energy storage subsystem using a pump-turbine recovery subsystem enabled by the one or more valves that were energized. Waste heat is recovered through a waste-heat recovery subsystem which includes water heat exchangers or a fluid spray. The water from the water heat exchangers can be used to make steam or ice.

MODULARIZED ENERGY MANAGEMENT USING POOLING

Disclosed techniques include energy management based on modularized energy control using pooling. Operating data is obtained from a plurality of energy modules within an energy storage system. The plurality of energy modules is pooled. One or more operating goals are obtained for the plurality of energy modules. The operating goals can be based on cost, availability, or energy module status. One or more processors are used to analyze the operating data, the one or more operating goals, energy demand, and energy module operating health. The operation of one or more of the plurality of energy modules is controlled based on the analysis. The energy modules can be a pooled homogeneous bank of energy modules. The homogeneous banks can be pooled into heterogeneous energy modules. The pools can include dynamically added energy module peers. 1. A computer-implemented method for energy management comprising:obtaining operating data from a plurality of energy modules within an energy storage system;obtaining one or more operating goals for the plurality of energy modules;analyzing the operating data, the one or more operating goals, energy demand, and energy module operating health; andcontrolling operation of one or more of the plurality of energy modules, based on the analyzing, wherein two or more of the plurality of energy modules are pooled.2. The method of wherein the plurality of energy modules that are pooled comprise a homogeneous bank of energy modules.3. The method of wherein the plurality of energy modules that are pooled comprise two or more homogeneous banks of heterogeneous energy modules.4. The method of wherein the controlling operation of the one or more of the plurality of energy modules includes changing energy module redundancy.5. The method of wherein the controlling operation of the one or more of the plurality of energy modules includes dynamically changing a number of energy modules within the plurality of energy modules.6. The method of wherein the ...

Compressed gas energy storage and release system

A compressed gas energy storage and release (CGESR) system and method. The system has a gas compressor, a container for storing compressed gas, a pressure engine, and an underground high temperature region. Conduits connect the gas compressor, the container and the pressure engine. The compressed gas drives the pressure engine. An electrical power generating means is operatively connected to said pressure engine to generate electricity. The system further comprises a means to heat at least a portion of one of the conduits utilizing heat from the underground high temperature region to heat the compressed gas therein prior to driving the pressure engine.

MULTIPLE CAVERN COMPRESSED AIR ENERGY STORAGE SYSTEM AND METHOD

An energy system for storing pressurized air and utilizing the pressurized air to generate electricity includes a first storage cavern, a second storage cavern, an air compressor in fluid communication with the first and second storage caverns, an electric generating mechanism, a combustion chamber, a controller and a recuperator. The air compressor is in fluid communication with a compressor piping system, the electric generating mechanism and the combustion chamber are in fluid communication with a generator piping system and the recuperator is in fluid communication with an exhaust piping system and the generator piping system. The controller is configured to operate the energy system such that the compressor directs compressed an into the first storage cavern through the compressor piping system at the same time the electric generating mechanism generates electricity utilizing at least compressed air from the second cavern. 1. An energy system for storing pressurized air and utilizing the pressurized air to generate electricity , the energy system comprising:a first storage cavern;a second storage cavern separate from the first storage cavern;an air compressor in fluid communication with the first and second storage caverns through a compressor piping system, the air compressor configured to provide pressurized air to the first and second caverns through the compressor piping system;an electric generating mechanism in fluid communication with the first and second storage caverns through a generator piping system, the compressor piping system being separate from the generator piping system;a combustion chamber in fluid communication with the generator piping system and upstream of airflow relative to the electric generating mechanism, the combustion chamber configured to preheat the pressurized air flowing to the electric generating mechanism;a controller in communication with the air compressor, the electric generating mechanism, the compressor piping system and ...

SYSTEM FOR ENERGY STORAGE AND ELECTRICAL POWER GENERATION

A system for energy storage and electricity generation is described. The system includes an energy storage system providing compressed air and an electricity generation system. The electricity generation system includes an airlift pumping system pneumatically coupled to the energy storage system. The airlift pumping system includes a water collecting tank containing collecting water and a riser tube having a base immersed in the collecting water and configured for injection of the compressed air into the riser tube through the air pipeline to provide air bubbles within the riser tube that produce an upward flow of the collecting water together with the air bubbles. The electricity generation system also includes a hydro-electric power system driven by upward flow of the collecting water together with the air bubbles to produce electricity, and a water heating system for heating the collecting water in the water collecting tank. 1. A system for energy storage and electricity generation , comprising:an energy storage system configured to store energy in the form of compressed air; and [ a water collecting tank containing collecting water;', 'a riser tube having a base immersed in the collecting water and configured for injection of the compressed air into the riser tube to provide air bubbles within the riser tube that produce an upward flow of the collecting water together with the air bubbles;, 'an airlift pumping system pneumatically coupled to energy storage to system providing compressed air, the airlift pumping system including, {'b': '1', 'a hydro-electric power system driven by upward flow of the collecting water together with the air bubbles of the airlift pumping system, and configured to produce electricity w utilizing the compressed air; and'}, 'a water heating system configured for heating the collecting water in the water collecting tank to a predetermined temperature greater than the temperature of ambient air in the atmosphere; and, 'an electricity ...

Compressed Air Accumulation System For Power Generation

A compressed air generation system that provides compressed air for a variety of applications including generation of electricity. The a system for accumulating and storing compressed air that is later used for a variety of applications including energy generation. The system uses mechanical air pumps that are activated when vehicles, including cars and buses, pass over air pumps imbedded in the road surface. Alternative embodiments use air compression pumps to store compressed air when the moving vehicles, such as trains, pass over railroad ties. The compressed air is fed into air accumulators that are used to produce clean electrical energy.

UNDERWATER ENERGY STORAGE SYSTEM AND POWER STATION POWERED THEREWITH

An underwater energy storage system includes a tank for storing a compressed gas that is adapted to be stored underwater. The tank includes at least one water opening through which water from surrounding environment can flow into and out of the tank, and at least one gas opening through which the compressed gas is received. The underwater energy storage system further includes at least one duct communicating between the at least one opening for gas flow and a source of compressed gas and a compartment constructed over a roof of the tank, wherein said compartment is adapted for receiving weights at a sinking site of the tank. 1. An underwater energy storage system comprising:a tank for storing a compressed gas that is adapted to be stored underwater, wherein the tank encloses a constant volume,the tank comprising:at least one water opening through which water from surrounding environment can flow into and out of the tank;at least one gas opening through which the compressed gas is received;at least one duct communicating between the at least one opening for gas flow and a source of compressed gas; anda compartment constructed over a roof of the tank, wherein said compartment is adapted for receiving weights at a sinking site of the tank.2. The system of claim 1 , wherein the compartment is formed with a banister encompassing the roof of the tank.3. The system of claim 2 , wherein the banister is an integral part of walls of the tank that extends above a height of the roof.4. The system of claim 1 , wherein the compartment is partitioned with partitioning walls adapted to provide structural support for the roof of the tank.5. The system of claim 2 , wherein the tank includes sloped walls claim 2 , and wherein the banister at least partially encompasses the walls of the tank.6. The system of claim 1 , wherein the compartment includes a door claim 1 , wherein the door provides for releasing weights received in the compartment when opened.7. The system of claim 1 , ...

Solid-State Energy Harvester of Transition Metal Suboxides

Solid-state energy harvesters comprising layers of metal suboxides and cerium dioxide utilizing a solid-state electrolyte to produce power and methods of making and using the same are provided. The solid-state energy harvester may have two or three electrodes per cell and produces power in the presence of water vapor and oxygen. 1. A solid-state energy harvester , comprising:a first layer comprising a first transition metal suboxide, and a solid-state electrolyte (SSE);a second layer comprising an admixture of a second transition metal suboxide, and a lanthanide oxide or dioxide, wherein the admixture forms a SSE;a third layer comprising a third transition metal suboxide, and a SSE; andwherein the first transition metal suboxide and the third transition metal suboxide are different from each other.2. The solid-state energy harvester of claim 1 , wherein the first transition metal suboxide is selected from the group consisting of tungsten suboxide claim 1 , cobalt suboxide claim 1 , NaMoWO claim 1 , NaMoO claim 1 , NaTiWO claim 1 , NaTiWO claim 1 , TiO claim 1 , TiO claim 1 , KTiO claim 1 , KTiO claim 1 , KTiO claim 1 , NaWO claim 1 , NaWO claim 1 , NaWO claim 1 , NaWO claim 1 , KWO claim 1 , WO claim 1 , WO claim 1 , WO claim 1 , NaWO claim 1 , NaWO claim 1 , NaOWO claim 1 , NaTiWO claim 1 , NaCuWO claim 1 , NaMoWO claim 1 , and NaOWO.3. The solid-state energy harvester of claim 1 , wherein the third transition metal suboxide is selected from the group consisting of tungsten suboxide claim 1 , cobalt suboxide claim 1 , CoO claim 1 , NaMoWO claim 1 , NaMoO claim 1 , NaTiWO claim 1 , NaTiWO claim 1 , KTiO claim 1 , KTiO claim 1 , KTiO claim 1 , NaWO claim 1 , NaWO claim 1 , NaWO claim 1 , NaWO claim 1 , KWO claim 1 , WO claim 1 , WO claim 1 , WO claim 1 , NaWO claim 1 , NaWO claim 1 , NaOWO claim 1 , NaTiWO claim 1 , NaCuWO claim 1 , NaMoWO claim 1 , and NaOWO.4. The solid-state energy harvester of claim 1 , wherein the first transition metal suboxide claim 1 , second ...

COMPRESSED AIR ENERGY STORAGE GENERATOR

A CAES generator includes a plurality of motors, a plurality of compressors, a pressure accumulator, an expander, a generator, an electric-motor inverter that changes a rotation speed of each of the motors, a feed command receiver that receives input power as a feed command value before feeding the input power, and a controller. The controller includes a compressor number calculation unit that calculates a maximum number of motors that are allowed to be driven at a rating based on the feed command value, and a compressor drive control unit that drives at the rating, the motors, the number of which is the maximum number calculated by the compressor number calculation unit. 1. A compressed air energy storage generator comprising:a plurality of electric motors configured to be driven with input power that fluctuates;a plurality of compressors configured to be driven by the electric motors to compress air;a pressure accumulator configured to hold the compressed air discharged from the compressors;an expander configured to be driven with the compressed air supplied from the pressure accumulator;a generator configured to be driven by the expander to supply output power to a consumer facility;an electric-motor inverter configured to change a rotation speed of each of the electric motors;a feed command receiver configured to receive the input power as a feed command value before feeding the input power; anda controller including a compressor number calculation unit and a compressor drive control unit, the compressor number calculation unit being configured to calculate a maximum number of electric motors that are allowed to be driven at a rating based on the feed command value, the compressor drive control unit being configured to drive the electric motors at the rating, wherein a number of the electric motors driven at the rating is the maximum number calculated by the compressor number calculation unit.2. The compressed air energy storage generator according to claim 1 , ...

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

LOW DENSITY FLUID DISPLACEMENT TO GENERATE POWER

The present invention relates to systems and methods for pumping or removing a fluid from a region within or on top of or in contact with a water or liquid body and applications for said systems and methods. Some embodiments may be applicable to, for example, inhibiting or preventing growth formation or fouling of structures in liquid environments. Other embodiments may be applicable to, for example, an energy storage device or a tidal power energy generation system. 1. A system for generating electricity comprising:a first storage reservoir near the surface of a body of water and configured to store a fluid which has a lower density than water and is substantially immiscible with water;a second storage reservoir located below the surface of a body of water and configured to store water; a pump; anda generator;wherein the pump, generator, and the first and second reservoir are operatively connected such that electricity is stored by displacing water in the second storage reservoir by pumping low density fluid in the first storage reservoir to the second storage reservoir and electricity is generated (or discharge) by allowing the low density fluid in the second storage reservoir to return to the first reservoir.2. The system of wherein the pump and the generator may be the same unit.3. The system of wherein said second storage reservoir comprises an expandable or contractible structure.4. The system of wherein said second storage reservoir comprises a bladder claim 1 , a bag claim 1 , or a balloon.5. The system of wherein said second storage reservoir contains a concave region with an opening near the bottom of said concave region open to the body of water.6. The system of wherein said second storage reservoir is tethered to the bottom of said water body.7. The system of wherein the fluid having a lower density than water comprises a hydrocarbon liquid or natural gas.8. The system of wherein the fluid having a lower density than water comprises compressed natural ...

Air to Electrical Energy and Water Microgrid

A combined heat and power microgrid system is provided that stores energy in the form of compressed air that can then be utilized as needed in the form, of electricity. The compressed air may be generated with energy from multiple electrical energy sources, such as renewable energy sources. The energy stored as compressed air/heat is used to charge a battery by utilizing a pulley system and a barrel housing that transfers kinetic energy generated by the release of the compressed air to an array of piezoelectric generators that can produce electricity, which is stored in the second battery. In addition, water may be extracted from the compressed air storage tank. In this way, energy produced by the renewable sources can be accessed during periods of high need or low production and water may be collected. 1. A microgrid system for generating and storing energy comprising:an auxiliary energy source;a first battery coupled to the energy source;a gas storage tank;a gas compressor electrically connected to the first battery and the gas storage tank, wherein the gas compressor inputs compressed air into the gas storage tank;a plurality of hoses connected to the gas storage tank;a housing having an inner section, a first outer section, and a second outer section, the housing being connected to the plurality of hoses and including a first pneumatic piston within the housing and a second pneumatic piston within the housing and opposing the first piston, a first drive bar connected to the first piston, a second drive bar connected to the second piston, and a plurality of linear generators configured such that motion of the first piston and the second piston will cause the respective first drive bar and second drive bar to move along at least sonic of the plurality of linear generators, and wherein the first drive bar has a first end and a second end and the second drive bar has a third end and a forth end;a pulley system including a first pulley wheel with a first pulley cord, ...

COMPRESSED AIR ENERGY STORAGE POWER GENERATION DEVICE

A CAES power generation device includes a plurality of compression/expansion/combined machines, a pressure accumulation unit for storing compressed air, a plurality of heat exchangers, a heat storage unit for storing a heating medium, and a plurality of first containers having a rectangular parallelepiped shape for accommodating the plurality of compression/expansion/combined machines and the plurality of heat exchangers. The plurality of first containers are arranged side by side so that long side surfaces face each other. The long side surface of the first container is provided with at least one vent being an outlet of a pipe for communicating the compression/expansion/combined machine with the outside of the container. A short side surface of the first container is provided with a first takeout port for taking out an air pipe that fluidly connects the compression/expansion/combined machine and the pressure accumulation unit, and a second takeout port for taking out a heating medium pipe that fluidly connects the heat exchanger and the heat storage unit. 1. A compressed air energy storage power generation device comprising:a plurality of compression/expansion/combined machines having a function of compressing air using electric power and a function of generating power by expanding compressed air;a pressure accumulation unit fluidly connected to each of the compression/expansion/combined machines, and configured to store the compressed air;a plurality of heat exchangers configured to exchange heat between the compressed air and a heating medium to cool the compressed air supplied from each of the compression/expansion/combined machines to the pressure accumulation unit and heat the heating medium, or to heat the compressed air supplied from the pressure accumulation unit to each of the compression/expansion/combined machines and cool the heating medium;a heat storage unit fluidly connected to each of the heat exchangers, and configured to store the heating medium; ...

Hybrid power system for a vehicle

A hybrid power system includes an on-board compressed air supply and a battery. One or more electric motors are coupled to the vehicle wheels. The compressed air drives an air motor that is coupled to an electric generator. The electric generator is coupled to a smart power controller which controls the delivery of compressed air to the air motor and also directs the electric power to an electric motor battery bank, an accessory battery, a capacitor bank for storing the electric energy or directly to the electric motors. In accordance with the present invention, the smart energy controller optimizes the compressed air and electric energy sources to maximize the driving range of the vehicle.

一种带有快速响应模块的压缩空气储能系统及其运行方法

本发明公开了一种带有快速响应模块的压缩空气储能系统及其运行方法，包括变电系统、快速响应模块、空气压缩装置、高压储气容器、电加热装置、膨胀机和发电机，新能源系统发出的电能通过电缆输入到变电系统，变电系统输出端通过电缆连接到快速相应模块及空气压缩装置，空气压缩装置、高压储气容器、电加热装置和膨胀机依次连接，膨胀机与发电机通过传动轴相连，发电机输出端通过电缆连接到变电系统，变电系统输出端连接到电网侧，快速响应模块能加快压缩空气储能系统响应时间，在运行过程中消除新能源供电波动；在发电富余的时候，利用配置的压缩空气储能系统储存多余电能，解决新能源发电间歇性问题，可以实现长期稳定地向电网供应电能。

Wind, light, heat and hydrogen storage integrated supercritical steam turbine power generation system

本发明涉及新能源利用领域，公开了风光热氢储一体化超临界蒸汽轮机发电系统。该系统包括风光发电装置、集热装置、水储能装置、制氢储能装置、超临界蒸汽发电装置和供水装置。该工作方法包括：风光发电装置提供电能；供水装置加压供水；储存在水储能装置中的水通过集热装置加热至超临界状态；制氢储能装置燃烧氢气产热并通入超临界蒸汽发电装置中；超临界状态的蒸汽膨胀做功，发电。本发明实现了风电、光伏和光热在源头上的三元互补，大大降低了能源利用环节中的能量损失，并且利用水的显热储能和制氢的物化潜热储能，利用超临界蒸汽膨胀做功发电，降低运维和投资成本，可以做长年满发运行的基础电力，满足了电网并网和调峰的要求。

Island air energy storage system

本发明公开了一种孤岛空气储能系统，涉及储能领域，包括储气室、储热器以及压缩机，所述储气室内铺设有储气板，所述储气室的出气口与涡轮机的连接管路之间设有气阀，所述储气板内设有储气仓以及换热流道，所述储气仓的入口与压缩机的出口连接，所述储热器内部设有若干层叠布置的换热板，所述换热板内也设有换热流道，若干个换热板从上至下依次连通，所述换热板的换热流道与储气板的换热流道闭合连通，该储能系统将空气压缩的能量分为储热器储存的热量、储气室的高压气体的能量以及发电装置中的弹簧势能三种能量，大幅提高了该储能系统的整体储能负载能力。将压缩空气的热量储存再利用，减少了能源的损耗，提高了电力的利用率。

Solid-state energy accumulator from suboxides of transition metals

FIELD: power storage. SUBSTANCE: inventions can be used to collect energy from the environment. Proposed is a solid-state energy accumulator containing a first layer containing a first suboxide of a transition metal and a solid electrolyte (SE), a second layer containing a mixture of a second suboxide of a transition metal and lanthanide oxide or dioxide, wherein said mixture forms an SE, a third layer containing a third suboxide of a transition metal and an SE, wherein the first suboxide of a transition metal and the third suboxide of a transition metal are different. The solid-state energy accumulator can have two or three electrodes per cell and generates electricity in the presence of water vapour and oxygen. EFFECT: inventions provide a possibility of generating energy as needed from the environment for various applications. 69 cl, 36 dwg, 4 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 764 662 C1 (51) МПК H01L 31/0224 (2006.01) H01L 31/101 (2006.01) H01M 10/0562 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H01L 31/0224 (2021.08); H01L 31/101 (2021.08); H01M 10/0562 (2021.08) (21)(22) Заявка: 2020129229, 11.03.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ОМЕГА ЭНЕРДЖИ СИСТЕМЗ, ЭлЭлСи (US) 19.01.2022 (56) Список документов, цитированных в отчете о поиске: US 2010 /032001 A1, 11.02.2010. US 2013/269782 A1, 17.10.2013. RU 2585252 C2, 27.05.2016. US 9831530 B2, 28.11.2017. RU 2170468 C1, 10.07.2001. 12.03.2018 US 62/641,779 (45) Опубликовано: 19.01.2022 Бюл. № 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.10.2020 (86) Заявка PCT: 2 7 6 4 6 6 2 R U (87) Публикация заявки PCT: WO 2019/177992 (19.09.2019) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ТВЕРДОТЕЛЬНЫЙ НАКОПИТЕЛЬ ЭНЕРГИИ ИЗ СУБОКСИДОВ ПЕРЕХОДНЫХ МЕТАЛЛОВ (57) Реферат: Изобретения могут быть ...

Compressed air storage power generator

Compressed-air energy storage power generator

压缩空气储能发电装置（10）具备：电力需要接收部（60）；冷热需要接收部（61）；电力供给调整装置（19），对由发电机（15）发出的电力量进行调整；冷热供给调整阀（22），对冷热从第1载热体储藏部（21）向需要方设备（3）的供给量进行调整；以及控制装置（17），控制电力供给调整装置（19）和冷热供给调整阀（22），以便将与电力需要值和冷热需要值对应的电力和冷热向需要方设备（3）供给。

Compressed air energy storage unit with induction pump

FIELD: electricity. SUBSTANCE: invention relates to a compressed air energy storage unit. Compressed air energy storage unit comprises an electrical input/output circuit, compressor and expansion means and an artificially created compressed air reservoir. Compressor and expansion means comprise piston pump (200) and are configured to switch between pump and generator modes. Pistons of piston pump (200) consist of an electrically and thermally conductive liquid. Electromagnets with a core and coils are provided for inductive driving of the electrically conductive liquid. Core forms a closed loop and comprises two parallel straight parts of a cylinder, around which the coils are wound. EFFECT: invention is aimed at creating a simple and effective design. 15 cl, 22 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 663 677 C2 (51) МПК F04B 39/00 (2006.01) H02K 44/08 (2006.01) H02K 7/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04B 39/0011 (2017.08); H02K 44/085 (2017.08); H02K 7/1876 (2017.08) (21)(22) Заявка: 2015149642, 17.04.2014 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ШНАЙДЕР Александр (AT) Дата регистрации: 08.08.2018 (56) Список документов, цитированных в отчете о поиске: US 2011/277457 A1, 17.11.2011. US 6183206 B1, 06.02.2001. EP 1657048 A1, 17.05.2006. EP 2450549 A2, 09.05.2012. WO 2008139267 A1, 20.11.2008. RU 2435041 C2, 27.11.2011. 19.04.2013 AT A 329/2013; 05.02.2014 AT A 85/2014 (43) Дата публикации заявки: 23.05.2017 Бюл. № 15 (45) Опубликовано: 08.08.2018 Бюл. № 22 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.11.2015 AT 2014/050095 (17.04.2014) (87) Публикация заявки PCT: WO 2014/169312 (23.10.2014) 2 6 6 3 6 7 7 2 6 6 3 6 7 7 Приоритет(ы): (30) Конвенционный приоритет: R U R U 17.04.2014 (72) Автор(ы): ШНАЙДЕР Александр (AT) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) ...

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

INSTALLATION OF STORAGE AND RECOVERY OF ELECTRICAL ENERGY

L'installation de stockage et de récupération d'énergie électrique comprend au moins un compresseur d'air (8) entraîné en rotation par un moteur électrique alimenté par le réseau électrique (1) pour mettre sous pression un réservoir de stockage (3) d'air comprimé. L'installation comprend des moyens pour commander l'alimentation du moteur électrique d'entraînement du compresseur d'air (8) lors des périodes de surproduction d'énergie électrique et des moyens pour commander l'entraînement d'une génératrice par de l'air sous pression prélevé sur le réservoir de stockage (3). L'installation comprend en outre des panneaux solaires (4) adaptés pour chauffer de l'eau qui est stockée dans un ballon d'eau chaude (5) relié par des conduites à un échangeur (6) disposé dans le réservoir de stockage (3) pour augmenter la pression de l'air de ce réservoir (3) par échange thermique entre l'eau chaude et l'air du réservoir (3). The storage and electrical energy recovery installation comprises at least one air compressor (8) rotated by an electric motor powered by the electrical network (1) to pressurize a storage tank (3) d. 'pressurized air. The installation comprises means for controlling the supply of the electric drive motor of the air compressor (8) during periods of overproduction of electrical energy and means for controlling the drive of a generator by means of pressurized air taken from the storage tank (3). The installation further comprises solar panels (4) adapted to heat water which is stored in a hot water tank (5) connected by pipes to an exchanger (6) disposed in the storage tank (3). ) to increase the air pressure of this tank (3) by heat exchange between the hot water and the air of the tank (3).

METHOD AND DEVICE FOR STORING ELECTRICAL ENERGY

INSTALLATION FOR THE STORAGE OF ELECTRIC ENERGY FROM THE BRAKING OF ONE OR MORE RAILWAY VEHICLES AND ASSOCIATED STORAGE SYSTEM

L'invention concerne une installation (20) de stockage de l'énergie électrique issue du freinage d'un ou plusieurs véhicules ferroviaires (V1, V2) circulant sur au moins une voie ferrée (14, 15), l'installation (20) étant destinée à être implantée à l'extérieur du ou des véhicules ferroviaires (V1, V2). L'installation (20) comprend : - une station d'électrolyse (22) de l'eau apte à utiliser l'énergie électrique générée lors du freinage du ou de chaque véhicule ferroviaire (V1, V2) ; - un dispositif de stockage de l'hydrogène (24) formé par l'électrolyse de l'eau ; et - une pile à combustible (26) apte à générer un courant électrique à partir de l'hydrogène stocké dans le dispositif de stockage d'hydrogène (24).

Energy concentration device

一种能量集中装置，主要包括数组串联或并联的加压系统，各加压系统包含一气压缸体与一加压桶设置，该气压缸体的活塞杆运用自然界能量而来回移动，在气压缸内产生压缩气体，并将压缩气体推入相邻的加压桶内储存，加压桶内的气体再因新进的气体的压缩，进入至后一个气压缸体，再通过后一个气压缸体的活塞移动，使压缩后的气体进入到另一个加压桶或高压气体储存装置内储存，如此反复。本发明是通过运用大自然的各种自然现象的自然能量，而得到经多级压缩的高压气体，并将该高压气体储存至高压储气装置，以提供各种需要压缩气体的应用场合，例如供应其他所有用到如汽车、机车、巴士、工厂所需空气的动力，也可提供家庭所需如家电、气动门所需空气的动力。

Power generation system comprising a hydraulic turbine, with improved dynamic response

L'invention concerne un système de production d'énergie (1), comprenant : - un système de turbine hydraulique (3) ayant des points de consigne de sortie de puissance électrique indésirable et des points de consigne de sortie de puissance électrique sûre identifiés ; - un système de stockage d'énergie (14) ; - une liaison de connexion (6) reliée au système de stockage d'énergie (14) et à une machine électrique du système de turbine hydraulique (3), et connectée à un réseau courant alternatif (2) ; - un dispositif de détermination de l'état de charge (19) ; - un circuit de commande (18) contrôlant un transfert de puissance électrique entre la liaison de connexion (6) et le système de stockage d'énergie (14), configuré pour recevoir une valeur de consigne de puissance électrique Reps et configuré pour déterminer que cette valeur de consigne de puissance électrique reçue Reps appartient aux valeurs de consigne de sortie de puissance électrique indésirable, pour générer une valeur de consigne de transfert de puissance électrique Epts, et une valeur de consigne de sortie de puissance électrique réelle Aepos appartenant aux valeurs de consigne de sortie de puissance électrique sûre, satisfaisant la relation Reps = Epts + Aepos. Figure à publier avec l’abrégé de l’invention : 1

Installation for storing energy in form of e.g. electric power energy, has gas turbine with simple cycle associated with electrical energy generator and supplied with electrical energy by combustion air heated from heat exchanger

The installation has a generating unit (2) comprising a functional unit that is provided with a gas compression assembly (3), a storage unit (5), a heat exchanger and a gas turbine (8). The compression assembly is connected with storage parts (R) for storing pressurized gas. The storage unit releases the heat during compression of gas. The heat exchanger heats the gas from the storage unit. The gas turbine with a simple cycle or combined cycle is associated with an electrical energy generator (9) and supplied with electrical energy by the combustion air heated from the heat exchanger. An independent claim is also included for a method for storing energy in a form of isobaric compressed gas and electric power energy.

ENHANCED ADIABATIC STORAGE IN THE FORM OF HEAT AND COMPRESSED AIR.

L'invention concerne une installation (1) de compressions/détentes successives de gaz pour stocker/libérer de l'énergie, comprenant : * pour les compressions : - un premier compresseur (11, 101) du gaz délivrant une première quantité de chaleur, et - au moins un deuxième compresseur (12, 102) en aval du premier compresseur, * et pour les détentes : - un premier détendeur (21, 102) du gaz produisant une première quantité de refroidissement, et - au moins un deuxième détendeur (22, 101) en aval du premier détendeur, dans laquelle des moyens de transfert thermique (51, 150) cumulent la première quantité de chaleur à la première quantité de refroidissement pour abaisser une température de gaz en amont du deuxième compresseur, caractérisée en ce que l'installation comporte en outre des moyens refroidisseurs (6, 60, 160), en amont du deuxième compresseur et/ou en aval du premier détendeur, pour abaisser davantage la température du gaz en amont du deuxième compresseur. The invention relates to an installation (1) of successive compressions / detents of gas for storing / releasing energy, comprising: for compressions: a first compressor (11, 101) of the gas delivering a first quantity of heat, and at least one second compressor (12, 102) downstream of the first compressor, and for the detents: a first expander (21, 102) of the gas producing a first cooling quantity, and at least one second expander ( 22, 101) downstream of the first expander, wherein heat transfer means (51, 150) accumulate the first amount of heat at the first cooling amount to lower a gas temperature upstream of the second compressor, characterized in that the installation further comprises cooling means (6, 60, 160), upstream of the second compressor and / or downstream of the first expander, to further lower the temperature of the gas upstream of the second compress ur.

REVERSIBLE MECHANICAL SYSTEM FOR THE PRODUCTION OF LIQUEFIED GAS OR MECHANICAL ENERGY

L'invention concerne un système mécanique comprenant : - des moyens de production alternative d'énergie mécanique ou d'un gaz liquéfié ; - des moyens d'alimentation (20, 35, 36) en ledit gaz liquéfié desdits moyens de production ; - des moyens de fourniture d'énergie mécanique (8) auxdits moyens de production ; - des moyens d'alimentation (27) en ledit gaz à l'état gazeux desdits moyens de production ; ledit système ayant deux modes de fonctionnement : - un mode moteur dans lequel lesdits moyens d'alimentation (20, 35, 36) en ledit gaz liquéfié alimentent lesdits moyens de production pour produire de l'énergie mécanique ; - un mode générateur dans lequel lesdits moyens de fourniture (8) d'énergie mécanique fournissent de l'énergie mécanique auxdits moyens de production et lesdits moyens d'alimentation (27) en ledit gaz à l'état gazeux alimentent lesdits moyens de production pour produire ledit gaz liquéfié. The invention relates to a mechanical system comprising: - means of alternative production of mechanical energy or a liquefied gas; - Supply means (20, 35, 36) in said liquefied gas of said production means; means for supplying mechanical energy (8) to said production means; - Supply means (27) for said gas in the gaseous state of said production means; said system having two modes of operation: - a motor mode in which said supply means (20, 35, 36) in said liquefied gas feed said production means to produce mechanical energy; a generator mode in which said mechanical energy supply means (8) supply mechanical energy to said production means and said supply means (27) to said gaseous gas supply said production means to produce said liquefied gas.

ENERGY CONCENTRATING DEVICE

ENERGY MANAGEMENT INSTALLATION AND METHOD FOR STORING MECHANICAL / ELECTRICAL ENERGY

Installation de gestion d'énergie d'origine mécanique /électrique comprenant une source d'énergie mécanique (1) pour alimenter un utilisateur électrique (8) avec un répartiteur mécanique (2) en sortie de la source (1), relié mécaniquement à un compresseur pneumatique réversible (3) et à une génératrice électrique réversible (4). Un distributeur électrique (7) relie la sortie de la génératrice (4) à l'utilisateur (8). Un réservoir d'air comprimé (6) est relié à la sortie du compresseur (3) par l'intermédiaire d'un distributeur pneumatique (5). Un circuit de commande (9) recevant des informations, différents paramètres et des instructions du gestionnaire, commande le distributeur électrique (2), le distributeur pneumatique (5) et l'interface (7) pour gérer les flux d'énergie entre la source (1), le stockage (6) et l'utilisateur (8). Mechanical / electrical energy management installation comprising a source of mechanical energy (1) for supplying an electrical user (8) with a mechanical distributor (2) at the output of the source (1), mechanically connected to a reversible pneumatic compressor (3) and a reversible electric generator (4). An electrical distributor (7) connects the output of the generator (4) to the user (8). A compressed air reservoir (6) is connected to the outlet of the compressor (3) via a pneumatic distributor (5). A control circuit (9) receiving information, various parameters and instructions from the manager, controls the electrical distributor (2), the pneumatic distributor (5) and the interface (7) for managing the energy flows between the source (1), the storage (6) and the user (8).

IMPROVED ENERGY STORAGE AND RECOVERY SYSTEM

L'invention concerne un système et un procédé de stockage et de récupération d'énergie par gaz comprimé comprenant au moins un premier et au moins un second échangeurs de chaleur, un moyen de stockage de liquide froid et le moyen de stockage de liquide chaud,. Les premiers échangeurs de chaleur comportent au moins un échangeur de chaleur sans contact direct et au moins un second échangeur de chaleur est un échangeur de chaleur à contact direct.

METHOD FOR STORING, TRANSPORTING AND RETURNING ELECTRICAL ENERGY

Méthode permettant le stockage, le transport et la restitution d'énergie électrique. Le stockage d'énergie est réalisé sous forme d'hydrogène liquéfié. La méthode permet l'utilisation du froid généré par le rechauffement de l'hydrogène lors de sa regazéification, après son transport et avant son utilisation, pour liquéfier de l'air ou refroidir de l'air utilisé dans des procédés de production électrique. Elle permet d'améliorer sensiblement l'efficacité du cycle de stockage de l'énergie électrique. La méthode selon l'invention est particulièrement adaptée au stockage de masse et au transport de l'énergie électrique. Method for storing, transporting and returning electrical energy. Energy storage is performed in the form of liquefied hydrogen. The method allows the use of the cold generated by the heating of the hydrogen during its regasification, after its transport and before its use, to liquefy air or to cool air used in electrical production processes. It significantly improves the efficiency of the storage cycle of electrical energy. The method according to the invention is particularly suitable for mass storage and transport of electrical energy.

EOLIEN-PHOTOVOLTAIC HYBRID ASSEMBLY FOR NON-INTERMITTENT ENERGY PRODUCTION, WHICH CAN SUPPORT CYCLONES

L'invention concerne un dispositif modulaire hybride éolien et photovoltaïque comprenant une ou plusieurs hélices (3, 4), une carapace d'autoprotection (1, 2, 11 15) régulant l'entrée du vent (17) ou l'exposition au soleil (16), un arbre (4) entraînant sélectivement un alternateur (5) ou un moyen de compression (7) via un embrayage (6), alimentant une cuve de stockage d'air comprimé (8). Le dispositif est également doté d'un coffret de commande et de régulation (20), d'un moteur-frein pneumatique (7) actionnant l'alternateur à la demande à partir du stocke d'air comprimé, d'une cuve de stockage du fluide de refroidissement des panneaux photovoltaïques (11). L'ensemble constitue un dispositif de production, de stockage d'énergie renouvelable, pouvant soutenir les effets cycloniques, permettant la fourniture d'électricité à la demande. L'invention se décline en unité modulaire, fixe ou démontable, individuelle ou assemblées de plusieurs modules et des composantes fonctionnelles associées, terrestre ou maritime, de moyenne à forte puissance électrique. The invention relates to a modular hybrid wind and photovoltaic device comprising one or more propellers (3, 4), a self-protection shell (1, 2, 11 15) regulating the wind inlet (17) or exposure to the sun (16), a shaft (4) selectively driving an alternator (5) or a compression means (7) via a clutch (6), feeding a compressed air storage tank (8). The device is also provided with a control and regulation box (20), a pneumatic brake motor (7) operating the alternator on demand from the compressed air store, a storage tank cooling fluid of the photovoltaic panels (11). The set is a production device, renewable energy storage, which can support cyclonic effects, allowing the supply of electricity on demand. The invention is divided into a modular unit, fixed or removable, individual or assemblies of several modules and associated functional components, terrestrial or ...

IMPROVED ENERGY STORAGE AND RECOVERY SYSTEM

L'invention concerne un système et un procédé de stockage et de récupération d'énergie par gaz comprimé comprenant au moins un premier et au moins un second échangeurs de chaleur, un moyen de stockage de liquide froid et le moyen de stockage de liquide chaud,. Les premiers échangeurs de chaleur comportent au moins un échangeur de chaleur sans contact direct et au moins un second échangeur de chaleur est un échangeur de chaleur à contact direct. A system and method for compressed gas storage and energy recovery comprising at least first and at least second heat exchangers, cold liquid storage means and hot liquid storage means, . The first heat exchangers comprise at least one direct contactless heat exchanger and at least one second heat exchanger is a direct contact heat exchanger.

ISOBARE COMPRESSED GAS ENERGY STORAGE AND RESTITUTION INSTALLATION AND CORRESPONDING ENERGY STORAGE AND RESTITUTION METHOD

The installation has a generating unit (2) comprising a functional unit that is provided with a gas compression assembly (3), a storage unit (5), a heat exchanger and a gas turbine (8). The compression assembly is connected with storage parts (R) for storing pressurized gas. The storage unit releases the heat during compression of gas. The heat exchanger heats the gas from the storage unit. The gas turbine with a simple cycle or combined cycle is associated with an electrical energy generator (9) and supplied with electrical energy by the combustion air heated from the heat exchanger. An independent claim is also included for a method for storing energy in a form of isobaric compressed gas and electric power energy.

Compressed air energy storage power generation device

具备：压缩机(6)、第1热交换器(7)、第1蓄热部(10)和蓄压部(5)、第2热交换器(9)、第2蓄热部(11)。将第1蓄热(10)部和第2蓄热部(10)用第1流路(24)以及第2流路(25)连接。将第1流路(24)和第2流路(25)用第3流路(26)连接。在第1流路(24)的第1区域设置第1开闭单元(29)，在第2区域设置第2开闭单元(30)。在第2流路(25)的第3区域设置第3开闭单元(31)，在第4区域设置第4开闭单元(32)。在第3流路(26)设置驱动单元(27)和加热单元(28)。

Electrical energy storage system and method for storing and withdrawing electrical energy and computer program

Die Erfindung betrifft ein elektrisches Energiespeichersystem zur Ein- und Ausspeicherung elektrischer Energie mit wenigstens den folgenden Komponenten:a) eine elektrische Anschlusseinheit zum Anschluss des Energiespeichersystems an ein elektrisches Energieversorgungsnetz,b) ein erster Energiewandler, der mit der elektrischen Anschlusseinheit elektrisch verbunden ist und zur Umwandlung von über das Energieversorgungsnetz zugeführter elektrischer Energie in hydraulische Energie eingerichtet ist, die über ein im Energiespeichersystem befindliches Hydraulikmedium bereitgestellt wird,c) ein zweiter Energiewandler, der mit dem ersten Energiewandler hydraulisch verbunden ist und zur Umwandlung der vom ersten Energiewandler bereitgestellten hydraulischen Energie in Gasdruck-Energie eingerichtet ist, die über ein im Energiespeichersystem befindliches Druckgas bereitgestellt wird,d) eine Druckgas-Speichereinheit, die über eine Druckgas-Verbindung mit dem zweiten Energiewandler verbunden ist und zur Speicherung der vom zweiten Energiewandler bereitgestellten Gasdruck-Energie in Form komprimierten Druckgases eingerichtet ist.Ein solches Energiespeichersystem kann auch als hydropneumatisches Energiespeichersystem bezeichnet werden. Die Erfindung betrifft außerdem ein Verfahren zur Ein- und Ausspeicherung elektrischer Energie mittels eines Energiespeichersystems der zuvor genannten Art und ein Computerprogramm zur Ausführung des Verfahrens. The invention relates to an electrical energy storage system for storing and withdrawing electrical energy with at least the following components: a) an electrical connection unit for connecting the energy storage system to an electrical energy supply network, b) a first energy converter which is electrically connected to the electrical connection unit and for conversion of electrical energy supplied via the energy supply network is set up into hydraulic energy, which is provided via a hydraulic medium located in the energy storage system,c) ...

Temperature and pressure cooperative control water photovoltaic coupling compressed carbon dioxide energy storage system and method

本发明涉及储能装置技术领域，具体涉及一种温压协同控制的水上光伏耦合压缩二氧化碳储能系统和方法，系统包括低压储气区、高压储气区、换热器、压缩机和膨胀机；所述低压储气区、压缩机、高压储气区和膨胀机依次连接；压缩机和膨胀机分别与换热器相连，在换热器中二氧化碳与水体进行换热以调节二氧化碳的温度；低压储气区由多组低压储气装置并联组成；高压储气区由多组高压储气装置并联组成。根据压比和功率的关系，以及压缩机、膨胀机进口气体温度和其功功率的关系，选择合适高低压储气装置进行匹配以及合适的冷却水和加热水的流量，完成对光伏上网功率的平滑处理，以压比、温度协同调节等的方法，进一步提升压缩二氧化碳储能系统等的调节能力。

Underwater energy storage system and power station powered therewith

An underwater energy storage system includes a tank for storing a compressed gas that is adapted to be stored underwater. The tank includes at least one water opening through which water from surrounding environment can flow into and out of the tank, and at least one gas opening through which the compressed gas is received. The underwater energy storage system further includes at least one duct communicating between the at least one opening for gas flow and a source of compressed gas and a compartment constructed over a roof of the tank, wherein said compartment is adapted for receiving weights at a sinking site of the tank.

Use of renewable energy in ammonia synthesis

提供了一种氨合成设备，所述氨合成设备包括：进料预处理段，其可操作以预处理进料流；合成气生成段，其可操作以重整进料流而产生重整器产物流；变换转化段，其可操作以使重整器产物流进行水煤气变换反应而产生比重整器气体流包含更多氢气的经变换气体流；纯化段，其可操作以从经变换气体流移除至少一种组分并提供氨合成进料流；和/或氨合成段，其可操作以从氨合成进料流产生氨，其中所述氨合成设备被配置为使得相对于常规的氨合成设备而言，本发明的氨合成设备或其一个或多于一个段所需的能量中更多由基于非碳的能源、可再生能源和/或电力提供。

Air-compression energy-storage and power-supply system having air purification capability through using solar energy.

Se describe un sistema de suministro de energía y almacenamiento de energía por compresión de aire que tiene capacidad de purificación de aire mediante el uso de energía solar. El sistema incluye: un dispositivo de suministro de energía solar (1), que usa energía solar para producir energía para el sistema en sí y para que los usuarios lo usen durante el día; un dispositivo de purificación de aire (2), con su extractor (25) conectado a un dispositivo de distribución de energía del transformador (13) para obtener la energía de rotación, para que el aire exterior fluya hacia el cilindro de aire (21) después de filtrarse por el filtro de aire (24), luego el aire purificado sale del cilindro de aire (21) para proporcionar aire purificado; un dispositivo de suministro de energía y almacenamiento de energía por compresión de aire (3), que se usa para comprimir el aire purificado en alta presión para su almacenamiento, y el aire purificado en alta presión se libera por la noche, para que el generador (35) produzca energía para que el usuario la use por la noche; y un dispositivo de transmisión de energía eólica (4), dispuesto encima del dispositivo de purificación de aire (2).

Power-station installation

Power generating units and compressor units are arranged in an air cell power plant (1,2,3). According to one aspect of the invention, a common network connection transformer (23) with power generating units and compressor units alternately connected thereto is provided. According to another aspect of the invention, the power plant is divided up into the following: a power generation area (I) in which the power generating units are arranged; a connection and transformation area in which a network connection transformer (23) is arranged; a compressor area (III) in which the compressor units are arranged. Said areas are arranged in such a way that they are locally separate from each other. The inventive power plants can be combined advantageously to form modular power stations which are advantageously provided with common voltage rails (35, 36, 37) and media rails (13, 30).

Compressed air storage and power generation device and compressed air storage and power generation method

Combined energy storage device

FIELD: electricity. SUBSTANCE: battery is included in the chain of the brushless generator with permanent magnets and installed along the inner peripheral surface of a flywheel. Magnetic rings of the flywheel are located on its outer peripheral surface, and stator windings are in a stationary case, in the center of which there is an axis equipped with secondary windings of the transformer and permanent magnets of the brushless generator. Its stator windings are installed in the flywheel and connected to the batteries via the switching unit. On the outer surface of the case there are super condensers, connected in parallel to the battery. The primary windings of the transformer are located opposite to the secondary windings and are fixed to the flywheel. EFFECT: extended service life. 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 637 489 C1 (51) МПК H02K 7/02 (2006.01) H02J 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016150749, 22.12.2016 (24) Дата начала отсчета срока действия патента: 22.12.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 22.12.2016 (45) Опубликовано: 05.12.2017 Бюл. № 34 Адрес для переписки: 660100, г. Красноярск, ул. Академика Киренского, 27Б, кв. 21, Надараиа Цезари Георгиевич (56) Список документов, цитированных в отчете о поиске: НАДАРАИА Ц.Г. и др. Химико- C 1 2 6 3 7 4 8 9 R U (54) Комбинированный накопитель энергии (57) Реферат: Изобретение относится к электротехнике, к накопителям энергии для транспортных систем, летательных аппаратов, источников аварийного и бесперебойного питания систем связи и телекоммуникаций, для атомных, ветровых, солнечных электростанций. Технический результат заключается в увеличении срока эксплуатации. Аккумуляторная батарея включена в цепь бесколлекторного генератора с постоянными магнитами и установлена вдоль внутренней периферической поверхности маховика. Магнитные кольца маховика расположены на его внешней ...

Electric power energy storage peak shaving system

本发明涉及一种电力储能调峰系统，分别与发电系统和电网连接，所述电力储能调峰系统包括：中继存储罐，用于存储低温低压气体；气体压缩机，分别与所述发电系统和所述中继存储罐连接，用于根据所述发电系统提供的第一动力对所述低温低压气体进行压缩得到低温高压气体；存储模块，与所述气体压缩机连接，用于存储所述低温高压气体；动力模块，与所述存储模块连接，用于将第二动力转换成电能并入所述电网，所述第二动力为所述低温高压气体还原成所述低温低压气体时释放的动能；所述低温低压气体为含有少量N 2 的CO 2 ，所述低温低压气体从烟气中获取。本发明结构简单、效率高、低成本且保护环境。

Compressed air energy storage

Certain examples present an improved compressed-air energy storage system. The system can include multiple sequential stages, in which accumulators are charged with air, which influences a hydraulic fluid to influence a pump/motor, and vice versa.

System and method of using a compressed air storage system with a gas turbine

A power generation system includes a first compressor, a second compressor, a combustor configured to receive compressed air from the second compressor to produce an exhaust stream, a first turbine, and a power turbine. The first turbine is configured to receive the exhaust stream, generate a rotational power from the exhaust stream, output the rotational power to a second compressor, and output the exhaust stream. The system includes a coupling device configured to couple and decouple the first compressor to/from a second turbine, an electrical generator coupled to an output of the power turbine and configured to output electrical power, and a controller configured to cause the coupling device to mechanically decouple the second turbine from the first compressor, and cause the coupling device to direct compressed air from an air storage cavern to an inlet of the second compressor.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Cascade type energy storage system and energy storage method

本申请提出一种级联型储能系统及储能方法，其中级联型储能系统的储气压力较低，安全性好，其储气库的容积比常压储气库缩小80%以上，在3MPa以上储气压力下，储气库的容积比高压储气库还要小；对于恒定储气压力的运行工况下，空气和工质的压缩及膨胀过程均在恒定工况运行，无节流损失，储能效率较高，建造成本可控。本申请可用于兆瓦级的工业用户侧储能，也可用于十兆瓦级或百兆瓦级的电网侧或电源侧储能。

METHOD AND APPARATUS TO REDUCE PRESSURE FOR ENERGY SAVING

The energy-storage system and its application method of quick response

本发明涉及储能领域，提供了一种快速响应的储能系统及其使用方法。该系统包括储气室、压缩机组、膨胀机组、压缩机组油箱、膨胀机组油箱、压缩机组油冷却器、膨胀机组油冷却器、压缩机组油泵和膨胀机组油泵；压缩机组的出口通过膨胀机组油箱内的加热管与储气室的进口连通，储气室的出口依次通过调节阀和膨胀机组与压缩机组油箱内的加热管连通；压缩机组油箱、压缩机组油泵、压缩机组内部的油路和压缩机组油冷却器的高温侧首尾依次连接、以形成第一油循环回路；膨胀机组油箱、膨胀机组油泵、膨胀机组内部的油路和膨胀机组油冷却器的高温侧首尾依次连接、以形成第二油循环回路。本发明不仅能实现快速响应，而且还无需消耗外部热能来加热润滑油。

Improved heat storage system.

sistema de armazenamento de calor melhorado. aparelho (1) para armazenar energia, compreendendo: um vaso de armazenamento em alta pressão (10) para receber gás em alta pressão, o vaso de armazenagem de alta pressão (10) compreendendo uma primeira câmara alojando uma primeira estrutura de armazenamento de calor permeável a gás (14); e um vaso de armazenamento em baixa pressão (11, 12) para receber gás em baixa pressão, o vaso de armazenamento de calor em baixa pressão compreendendo uma segunda câmara alojando uma segunda estrutura de armazenamento de calor permeável e gás (16, 18); em que a primeira estrutura de armazenamento de calor (14) tem uma área superficial média por volume unitário que é mais alta do que uma área superficial média por volume unitário da segunda estrutura de armazenamento de calor (16, 18). Improved heat storage system. energy storage apparatus (1), comprising: a high pressure storage vessel (10) for receiving high pressure gas, the high pressure storage vessel (10) comprising a first chamber housing a first permeable heat storage structure gas (14); and a low pressure storage vessel (11, 12) for receiving low pressure gas, the low pressure heat storage vessel comprising a second chamber housing a second permeable heat and gas storage structure (16, 18); wherein the first heat storage structure (14) has an average surface area per unit volume that is higher than an average surface area per unit volume of the second heat storage structure (16, 18).

Cascade type energy storage system and energy storage method

本申请提出一种级联型储能系统及储能方法，其中级联型储能系统的储气压力较低，安全性好，其储气库的容积比常压储气库缩小80%以上，在3MPa以上储气压力下，储气库的容积比高压储气库还要小；对于恒定储气压力的运行工况下，空气和工质的压缩及膨胀过程均在恒定工况运行，无节流损失，储能效率较高，建造成本可控。本申请可用于兆瓦级的工业用户侧储能，也可用于十兆瓦级或百兆瓦级的电网侧或电源侧储能。

Device for storing and delivering fluids and method for storing and delivering a compressed gas contained in such a device

本发明涉及一种用于存储和传输流体的设备，所述流体包括气体和液体，所述设备包括：至少一个用于存储所述流体的容器(1)，气体入口(2)和气体出口，用于所述液体的入口和出口，至少一个用于将气体注入所述容器(1)的设施(8)，其用于存储所述流体；至少一个出口设施(9)，该出口设施连接到用于排出压缩气体的气体出口，液体排放装置，以及至少一个发动机组(15)，该发动机组包括至少一个泵(17)以及至少一个发动机(18)，该发动机用于将增压液体通过液体入口注入到用于存储流体的容器(1)中。

Hybrid energy and hydrogen storage device for new energy station

本发明提出一种用于新能源场站的混合储能储氢装置，将风电系统及光伏发电系统与长时、短时储能系统组成的混合储能系统、制氢系统接入同一交流电网，将风电系统和光伏发电系统产生的电能通过储能储氢控制模块的控制，选择性的充入混合储能系统中或者应用于制氢系统中产生氢能以进行存储。通过本发明，能够一方面利用短时储能系统进行电网频率优化，平抑新能源波动，另一方面利用1小时以上储能系统可提供长时的储能保障，移峰填谷；在发电高峰期，通过电解水制氢等方法产生氢气，存入贮氢合金储氢系统，减少弃风弃光，促进新能源消纳。

Compensated compressed gas storage systems

Systems, devices and methods for the compression, expansion, and/or storage of a gas are described herein. An apparatus suitable for use in a compressed gas-based energy storage and recovery system includes a pneumatic cylinder having a working piston disposed therein for reciprocating movement in the pneumatic cylinder, a hydraulic actuator coupled to the working piston, and a hydraulic controller fluidically coupleable to the hydraulic actuator. The apparatus is fluidically coupleable to a compressed gas storage chamber which includes a first storage chamber fluidically coupleable to the pneumatic chamber, and a second storage chamber is fluidically coupleable to the first storage chamber. The first storage chamber is disposed at a first elevation and is configured to contain a liquid and a gas. The second storage chamber is disposed at a second elevation greater than the first elevation, and is configured to contain a volume of liquid.

Compressed air energy storage and power generation device and compressed air energy storage and power generation method

A compressor compresses air in such a manner that a motor is driven by renewable energy. An accumulator tank stores the air thus compressed. An expander is driven by the compressed air. A generator is mechanically connected to the expander. A first heat exchanger recovers compressed heat. A heat medium tank that stores a heat medium. A second heat exchanger that heats the compressed air. A first pump adjusts an amount of the heat medium to be supplied to the first heat exchanger. A control device controls the first pump to adjust the amount of heat medium to be supplied to the first heat exchanger so as to maintain the heat medium, which is stored in the heat medium tank, at a predetermined first temperature.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Electrical power supply system

A system for generating back-up electrical power. The system includes a vessel adapted to contain a volume of compressed gas and a valve to release gas from the vessel at a predetermined pressure. A scroll expander is adapted to receive and pass the released gas. A rotary member is rotated by the flow of the released gas passed by the expander. An electrical generator is drivingly connected to the rotatable member of the expander to generate a supply of electrical power. A power conditioning unit has at least one capacitor to store electrical energy to provide a back-up electrical supply for a brief period until the scroll expander and generator can produce the required supply of electrical power.

Energy Storage Systems

Different types of energy storage systems are described, in particular hydro-pneumatic storage systems. In one, energy is stored by compressing gas in a chamber ( 44,45,54,55 ) with a liquid piston and released by gas expansion. A spray head or grid at the top of the chamber ( 44,45,54,55 ) supplies liquid as a shower through the gas being compressed or expanding in the cylinder ( 11,12 ) to maintain an isothermal condition. In another, energy is stored from an array of solar cells connected to an array of supercapacitors forming an auxiliary storage, and a main energy storage device such as a hydro-pneumatic storage system, for supply to an AC or DC network. The efficiency is improved by connecting the solar cells via the array of supercapacitors to the AC or DC network. An immersed hydro-pneumatic storage device for off-shore/on-shore power generation systems comprises a cylinder that is immersed in a liquid mass, wherein energy is stored by compressing gas with a liquid piston and energy is released by gas expansion. The mass of liquid maintains an isothermal condition in the cylinder during compression and expansion.

Patent JPS58501386A

(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。

Compressed air energy storage generator

A CAES generator (1) includes a plurality of motors (13), a plurality of compressors (10), a pressure accumulation tank (11), an expander (12), a generator (15), an electric-motor inverter (14) that changes a rotation speed of each of the motors, a feed command receiver (31) that receives input power as a feed command value before feeding the input power, and a controller (30). The controller (30) includes a compressor number calculation unit (30a) that calculates a maximum number of motors (13) that are allowed to be driven at a rating based on the feed command value, and a compressor drive control unit (30b) that drives at the rating, the motors (13), the number of which is the maximum number calculated by the compressor number calculation unit (30a).