EP2724005A1 - Method and device for storing energy by means of a combined heat and pressure storage device - Google Patents
Method and device for storing energy by means of a combined heat and pressure storage deviceInfo
- Publication number
- EP2724005A1 EP2724005A1 EP12735777.0A EP12735777A EP2724005A1 EP 2724005 A1 EP2724005 A1 EP 2724005A1 EP 12735777 A EP12735777 A EP 12735777A EP 2724005 A1 EP2724005 A1 EP 2724005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- working medium
- pressure
- combined heat
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 7
- 239000000443 aerosol Substances 0.000 claims description 5
- 239000012080 ambient air Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000003570 air Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/006—Accumulators and steam compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
- F02C6/16—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/17—Combinations of wind motors with apparatus storing energy storing energy in pressurised fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/001—Devices for producing mechanical power from solar energy having photovoltaic cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/025—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being in direct contact with a heat-exchange medium or with another heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/28—Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/18—Air and water being simultaneously used as working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/708—Photoelectric means, i.e. photovoltaic or solar cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/20—Heat transfer, e.g. cooling
- F05B2260/207—Heat transfer, e.g. cooling using a phase changing mass, e.g. heat absorbing by melting or boiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/207—Heat transfer, e.g. cooling using a phase changing mass, e.g. heat absorbing by melting or boiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/42—Storage of energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Definitions
- the invention relates to a method for storing energy by means of a combined heat and pressure accumulator and a device operating according to this method.
- CONFIRMATION COPY switched so that the compressed air is cooled before it is fed into the compressed air reservoir.
- the heat storage are thermally coupled to the pressure accumulator or positioned within it, the heat storage must be designed pressure resistant.
- the invention has for its object to provide an effective and particularly cost-effective method and a device particularly suitable for storing energy by means of a combined heat and pressure accumulator.
- the object concerning the method is solved by the features of claim 1 and the object relating to the device by the features of claim 10.
- Advantageous developments and refinements are the subject of the respective subclaims.
- a pressure / temperature point is understood to mean a point within a so-called phase diagram.
- a pressure / temperature point indicates a certain temperature and associated pressure.
- the temperature of the first pressure / temperature point between 5 ° C and 30 ° C and in particular between 10 ° C and 20 ° C.
- the pressure of the first pressure / temperature point is suitably between 0.5 bar and 2 bar, and expediently 1 atm.
- the aggregate state of the first component is gaseous
- the second component is liquid.
- the working medium is compressed.
- the heat generated during the compression of the first component is at least partially absorbed by the second component in that it at least partially evaporates.
- the working medium is isothermally compressed during this phase.
- the working medium is compressed for such a period of time until it reaches a second pressure / Temperature point.
- both the first component and the second component are completely in the form of gas.
- the temperature is for example between 250 ° C and 350 ° C and in particular 300 ° C.
- the pressure is expediently between 50 bar and 150 bar, in particular between 50 bar and 80 bar, preferably at 60 bar.
- the compressed working fluid in a combined heat and. Accumulator directed.
- the heat or pressure accumulator is thermally insulated and has a relatively large capacity, in particular> 1m 3 , suitably between 20m 3 and 500m 3 and preferably between 50m 3 and 200m 3 .
- the compressed working medium and thus the energy contained in the working medium is stored in the combined heat and pressure accumulator.
- the working fluid releases temperature to the environment or the combined heat and pressure accumulator itself. Due to the temperature output and thus due to the lowering of the temperature of the working medium, the second component condenses partially. Due to this condensation, the evaporation energy stored within the condensed part of the second component is released, and therefore the temperature of the working medium again increases.
- the first and second components as well as the first and second pressure / temperature point, it is possible to keep the temperature of the working medium within the combined heat and pressure accumulator constant over a comparatively long period of time, whereby the degree of mixing of the working medium continuously changes ,
- the concentration of the second component within the gaseous portion of the working medium decreases namely, with the condensed portion of the second component collects at the bottom of the combined heat and pressure accumulator.
- the working working medium expands.
- the expansion takes place in a controlled manner within a suitable machine, with the expanding working medium performing work.
- the working medium has a (slightly) above the first pressure / temperature point temperature, for example 50 ° C, on. At least the temperature of the working medium is such that the second component is partially liquid.
- the gaseous portion of the working medium is present as a saturated or partially saturated gas, but not as a supersaturated gas.
- the first component during the mixing of the first component with the second component, it is introduced as a suspended matter into the first component.
- the working medium after mixing completely, but at least partially, in the form of an aerosol. In this way, a comparatively good mixing of the two components is made possible with each other, wherein set during the subsequent compression of the working fluid substantially no temperature gradient within it.
- the amount of the second component compared to the amount of the further constituents of the working medium is selected such that during the storage of the working medium, the gaseous part of the working medium is present as a saturated or partially saturated gas.
- the first and the second pressure / temperature points and the amount of the second component is selected such that during a comparatively long storage of the working medium within the combined heat and Accumulator this proportion is maximum. Accordingly, preferably no condensation of the second component takes place.
- the working medium consists of the first and second components.
- ambient air is selected as the first component and / or water as the second component.
- no measures must be taken in this way, which prevent a malfunction of the combined heat and pressure accumulator escape of the first or second component into the environment, as would be the case for example with the use of a toxic substance.
- water and ambient air a possible chemical reaction between the two components can be avoided with a suitable choice of the first and the second pressure / temperature point.
- the working fluid is passed through a compressor inlet of a reciprocating compressor and compressed within it.
- the first component and the second component in the region of the compressor inlet of the reciprocating compressor is mixed. This makes it possible to keep the time interval between the compression of the working medium and its creation by the mixing of the first and the second component comparatively low. In this way, the two components remain relatively well mixed, especially if at the first pressure / temperature point, the working medium is in the form of an aerosol.
- a steam turbine can be used.
- the expansion of the working medium takes place within a piston engine. In this way, it is possible to relatively easily avoid damage to the machine due to water hammer. Furthermore, the slow rate of operation compared to a turbine favors the full Recovery of the evaporation energy stored within the second component.
- an electric generator is in operative connection with the piston engine.
- the energy stored within the compressed working medium is converted into electrical energy and, for example, can be fed into the public grid in the event of a bottleneck.
- the energy generated by a solar cell or a wind power plant is used to compress the working medium.
- These energy suppliers typically do not have a constant power output over one day. If the energy generated by means of a solar cell or a wind power plant is used to compress the working medium and electrical energy is generated during the expansion of the working medium, it is possible to feed in a power supply that is as constant as possible over a single day or peaks of power requirements within the power grid intercept.
- the device for carrying out the method comprises a combined heat and pressure accumulator with an inlet and with an outlet, the volume of which advantageously has between 20m 3 and 500m 3 and in particular between 50m 3 and 200m 3 .
- the inlet may coincide with the outlet, so for example, only one valve takes over the task of the inlet and the outlet.
- the inlet of the outlet is spatially separated and in particular each closable by means of a shut-off valve.
- a compressor On the inlet side of the combined heat and pressure accumulator is a compressor and this upstream of an injection device.
- a liquid second component is introduced into a gaseous first component, so that these two components are mixed to form a working medium.
- the injector is connected to the compressor such that the working fluid is directed from the injector to the compressor. This is done, for example, by means of the compressor, comparatively low negative pressure and / or generated by the injector, comparatively low pressure.
- the compressor in turn is in particular pressure-resistant connected to the inlet of the combined heat and pressure accumulator.
- the working medium can be compressed, the second component at least partially evaporated.
- the compressed working fluid is passed through the inlet into the heat or pressure accumulator and stored there.
- an expansion machine designed to recover the energy contained in the compressed first component and in the compressed and vaporized second component.
- the compressor or the expansion machine is designed as a piston engine.
- the compressor is operated by means of an electric motor.
- the expansion machine drives an electric generator. In this way, if the device comprises both the electric motor and the electric generator, a comparatively inexpensive storage of electrical energy allows.
- the expansion machine is followed by a Kondensatabscheider.
- the two components are separated again and can be reused again.
- ambient air and / or water as the first or second component may or may be released to the environment after the successful expansion.
- the illustrated device 2 comprises a combined heat and pressure accumulator 4 with an inlet 6 and with an outlet 8, wherein these are each shut off by means of a valve 10 and 12 respectively.
- the combined heat and pressure accumulator 4 has, for example, a cylindrical or capsular shape.
- the diameter of the combined heat and pressure accumulator 4 is between 2m and 6m, the length of which is between 5m and 20m.
- the combined heat and pressure accumulator 4 is preferably made of glass fiber reinforced plastic (GRP) and surrounded by an insulating layer 14.
- GRP glass fiber reinforced plastic
- the insulating layer 14 serves the thermal insulation of the combined heat and pressure accumulator 4 from the environment and can also take on the task of protection against mechanical damage.
- a compressor 18 pneumatically With the upstream of the inlet 6 valve 10 is connected via a pressure-stable tube 16, a compressor 18 pneumatically.
- the compressor 18 is designed as a reciprocating compressor 20 and is driven by means of an electric motor 22.
- the electric motor 22 is operated by means of the electric power generated by a solar cell 24.
- the compressor 18 has an inlet 26 into which an injection device 28 opens.
- an expansion machine 32 is pneumatically connected to the outlet 12 of the combined heat and pressure accumulator 4 downstream valve 12.
- the expansion machine 32 is in the form of a piston engine 34 and drives an electric generator 36.
- the expansion machine 32 is followed by a Kondensatabscheider 38.
- a method for storing energy is implemented.
- the energy is generated by means of the solar cell 24 and serves to drive the compressor 18.
- the compressor 18 sucks in a first component 42, which is ambient air.
- a liquid second component 44 as Suspended introduced so that a working medium 45 is formed, which has the shape of an aerosol.
- the second component 44 is water.
- the ratio of the first component 42 to the second component 44 within the working medium 45 is preferably 5: 2. This means that in one kilogram of sucked air 200g of water is injected.
- the first component 42, the second component 44 and the created working medium 45 have a first pressure / temperature point 46.
- the temperature of the first component 42, the second component 44 and the created working medium 45 is substantially equal and is between 10 ° C and 30 ° C, the pressure of the prevailing in the environment of the device 2 air pressure, ie the atmospheric pressure , is.
- the working medium 45 is compressed to 60bar.
- the temperature of the working medium 45 rises due to the compression to about 300 ° C, so that the working fluid 45 has a second pressure / temperature point 48.
- the second component 44 Due to the increased compared to the first pressure / temperature point 46 pressure or temperature, the second component 44 is completely evaporated.
- energy is stored, inter alia, in the form of evaporation energy at the second pressure / temperature point 48 in comparison to the second pressure / temperature point 46.
- the compressed working fluid 45 is passed through the pipe 16 and the valve 10 into the combined heat and pressure accumulator 4, the valve 12 being locked. Subsequently, the valve 10 is closed and the compressed working fluid 45 and the energy contained therein stored within the combined heat and pressure accumulator 4.
- waste heat is released from the working medium 45 to the combined heat and pressure accumulator 4 and through its insulating layer 14 to the environment. Due to this, the temperature of the working medium 45 drops below the boiling point of the second component 44 at the pressure prevailing within the combined heat and pressure accumulator 4.
- the second component 44 therefore begins to partially condense, with evaporation energy in the form of a Temperature increase of the working medium 45 is free. In this way, the temperature of the working medium 45 stabilizes at about 275 ° C, the second component 44 increasingly condenses, precipitates on the walls of the combined heat and pressure accumulator 4 and collects in the bottom area.
- the valve 12 For reconverting the stored energy, the valve 12 is opened and the working fluid 45 is passed through the outlet 6 and the pipe 30 in the expansion machine 32. There, the working fluid 45 is expanded, wherein 34 is performed on the piston engine work.
- the generator operatively connected to the expansion machine 32 converts the work into electrical energy.
- the working fluid 45 cools and its pressure decreases.
- the second component 44 thus liquefies and condenses on the one hand within the expansion machine 32 and on the other hand exists as a suspended matter within the first component 42.
- This aerosol is directed into the condensate separator 38 and the first component 42 is separated from the second component 44.
- the first component 42 is then directed into the environment, whereas the second component 44 is collected to be available for another storage cycle.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011105542.1A DE102011105542B4 (en) | 2011-06-24 | 2011-06-24 | Method and device for energy storage by means of a combined heat and pressure accumulator |
PCT/EP2012/002511 WO2012175178A1 (en) | 2011-06-24 | 2012-06-14 | Method and device for storing energy by means of a combined heat and pressure storage device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2724005A1 true EP2724005A1 (en) | 2014-04-30 |
Family
ID=46516663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12735777.0A Withdrawn EP2724005A1 (en) | 2011-06-24 | 2012-06-14 | Method and device for storing energy by means of a combined heat and pressure storage device |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140109563A1 (en) |
EP (1) | EP2724005A1 (en) |
JP (1) | JP2014517211A (en) |
DE (1) | DE102011105542B4 (en) |
WO (1) | WO2012175178A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013013554A1 (en) * | 2013-08-14 | 2015-02-19 | Hermann Leo Christoph Leffers | Leffers motors |
EP3746648B1 (en) * | 2018-01-31 | 2021-12-22 | E2S Power Ag | Energy storage device and system |
CN116608092B (en) * | 2023-05-22 | 2024-04-12 | 长江三峡集团实业发展(北京)有限公司 | Offshore wind generating set and energy storage system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5832728A (en) * | 1997-04-29 | 1998-11-10 | Buck; Erik S. | Process for transmitting and storing energy |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2086483B (en) * | 1980-10-31 | 1985-07-31 | Kershaw H A | Plant vaporizing a secondary fluid using heat of compression of a primary fluid |
JPH02119638A (en) * | 1988-10-28 | 1990-05-07 | Takenaka Komuten Co Ltd | Energy storage system using compressed air |
AU2003200316B2 (en) * | 2003-01-31 | 2009-10-01 | Mono Pumps Limited | Solar-powered pumping device |
US8378521B2 (en) * | 2007-05-09 | 2013-02-19 | Ecole Polytechnique Federale de Lausanna (EPFL) | Energy storage systems |
US8359856B2 (en) * | 2008-04-09 | 2013-01-29 | Sustainx Inc. | Systems and methods for efficient pumping of high-pressure fluids for energy storage and recovery |
US7958731B2 (en) * | 2009-01-20 | 2011-06-14 | Sustainx, Inc. | Systems and methods for combined thermal and compressed gas energy conversion systems |
US7832207B2 (en) * | 2008-04-09 | 2010-11-16 | Sustainx, Inc. | Systems and methods for energy storage and recovery using compressed gas |
US8225900B2 (en) * | 2008-04-26 | 2012-07-24 | Domes Timothy J | Pneumatic mechanical power source |
CN104895745A (en) * | 2009-05-22 | 2015-09-09 | 通用压缩股份有限公司 | Compressor and/or expander device |
US8146354B2 (en) * | 2009-06-29 | 2012-04-03 | Lightsail Energy, Inc. | Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange |
WO2011008325A2 (en) * | 2009-06-29 | 2011-01-20 | Lightsail Energy Inc. | Storage of compressed air in wind turbine support structure |
WO2011056855A1 (en) * | 2009-11-03 | 2011-05-12 | Sustainx, Inc. | Systems and methods for compressed-gas energy storage using coupled cylinder assemblies |
US9518786B2 (en) * | 2010-02-24 | 2016-12-13 | Energy Technologies Institute Llp | Heat storage system |
US8171728B2 (en) * | 2010-04-08 | 2012-05-08 | Sustainx, Inc. | High-efficiency liquid heat exchange in compressed-gas energy storage systems |
US8234863B2 (en) * | 2010-05-14 | 2012-08-07 | Sustainx, Inc. | Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange |
WO2013106115A2 (en) * | 2011-10-14 | 2013-07-18 | Sustainx, Inc. | Dead-volume management in compressed-gas energy storage and recovery systems |
-
2011
- 2011-06-24 DE DE102011105542.1A patent/DE102011105542B4/en not_active Expired - Fee Related
-
2012
- 2012-06-14 EP EP12735777.0A patent/EP2724005A1/en not_active Withdrawn
- 2012-06-14 WO PCT/EP2012/002511 patent/WO2012175178A1/en active Application Filing
- 2012-06-14 JP JP2014516221A patent/JP2014517211A/en active Pending
-
2013
- 2013-12-24 US US14/139,977 patent/US20140109563A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5832728A (en) * | 1997-04-29 | 1998-11-10 | Buck; Erik S. | Process for transmitting and storing energy |
Non-Patent Citations (1)
Title |
---|
See also references of WO2012175178A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102011105542A1 (en) | 2012-12-27 |
US20140109563A1 (en) | 2014-04-24 |
WO2012175178A1 (en) | 2012-12-27 |
DE102011105542B4 (en) | 2014-10-30 |
JP2014517211A (en) | 2014-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102006035273B4 (en) | Process for effective and low-emission operation of power plants, as well as for energy storage and energy conversion | |
EP3289291B1 (en) | Method for utilizing the inner energy of an aquifer fluid in a geothermal plant | |
EP0042160B1 (en) | Method and means for storing and bringing heat to a higher temperature | |
WO2008014774A2 (en) | Method and apparatus for use of low-temperature heat for electricity generation | |
EP2021634B1 (en) | Device and associated method for the conversion of heat energy into mechanical, electrical and/or thermal energy | |
WO2005078243A1 (en) | Method and installation for converting thermal energy from fluids into mechanical energy | |
EP2724017A1 (en) | Pumped-storage power plant | |
WO2020152330A1 (en) | Method and system for removing carbon dioxide from air | |
DE102011105542B4 (en) | Method and device for energy storage by means of a combined heat and pressure accumulator | |
DE102013018741A1 (en) | Device unit and method for energy storage and recovery | |
EP1706598B1 (en) | Method and installation for converting heat energy from refrigerating machines | |
EP2653670A1 (en) | Assembly for storing and emitting thermal energy with a heat storage device and a cold air reservoir and method for its operation | |
EP2599980A2 (en) | Power station with pressurised gas storage | |
WO2007042215A1 (en) | Method and device for generating mechanical or electrical energy from heat | |
EP2866918A1 (en) | Utilization of heat for separating co2 | |
DE102012021909A1 (en) | Method for transforming and storing renewable energy, involves supplying rich solution from water tank to absorber and spraying poor solution at bottom of absorber, so that rich solution is cooled before being supplied to poor solution tank | |
DE102013006725B4 (en) | Process for the storage and recovery of electric energy, heat and water by absorption and desorption of water | |
WO2013004351A1 (en) | Device for emergency cooling a system for exothermic processes | |
DE102020103498A1 (en) | Method for storing and recovering electrical energy and energy storage arrangement | |
DE102012100645A1 (en) | Device for performing organic rankine cycle (ORC) process for generating power using waste heat obtained from industrial plant, involves providing heat exchanger with throttle for throttling condensed process fluid | |
DE102011053428B4 (en) | Process for converting thermal energy into mechanical energy, and device for carrying out the process | |
DE369516C (en) | Process for generating water vapor | |
WO2012048670A2 (en) | Method and device for storing and releasing energy | |
DE102010060595A1 (en) | Method for generating electricity from liquefied gases, used in e.g. power plant, involves vaporizing stored liquefied gas | |
EP0249016A2 (en) | Method of generating energy |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20131212 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20171110 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F03D 9/17 20160101AFI20200514BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20200622 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MUELLER, TIM Inventor name: BECK, BERNHARD |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20201103 |