EP3555430A1 - Installation for generating electricity comprising heat storage - Google Patents
Installation for generating electricity comprising heat storageInfo
- Publication number
- EP3555430A1 EP3555430A1 EP17828952.6A EP17828952A EP3555430A1 EP 3555430 A1 EP3555430 A1 EP 3555430A1 EP 17828952 A EP17828952 A EP 17828952A EP 3555430 A1 EP3555430 A1 EP 3555430A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power cycle
- heat
- storage device
- thermochemical
- reactor
- 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- Withdrawn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
- 230000005611 electricity Effects 0.000 title claims abstract description 55
- 238000009434 installation Methods 0.000 title claims abstract description 50
- 238000005338 heat storage Methods 0.000 title claims description 20
- 238000003860 storage Methods 0.000 claims abstract description 120
- 238000000034 method Methods 0.000 claims abstract description 44
- 230000008878 coupling Effects 0.000 claims abstract description 36
- 238000010168 coupling process Methods 0.000 claims abstract description 36
- 238000005859 coupling reaction Methods 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000002441 reversible effect Effects 0.000 claims abstract description 5
- 238000001179 sorption measurement Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 13
- 238000010248 power generation Methods 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 1
- 230000020169 heat generation Effects 0.000 claims 1
- 239000012071 phase Substances 0.000 description 36
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
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- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 5
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- 238000010438 heat treatment Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000011232 storage material Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- SYHGEUNFJIGTRX-UHFFFAOYSA-N methylenedioxypyrovalerone Chemical compound C=1C=C2OCOC2=CC=1C(=O)C(CCC)N1CCCC1 SYHGEUNFJIGTRX-UHFFFAOYSA-N 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
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- 150000005324 oxide salts Chemical class 0.000 description 1
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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
-
- 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
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
-
- 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
- F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
- F01K3/188—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using heat from a specified chemical reaction
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/001—Recuperative heat exchangers the heat being recuperated from exhaust gases for thermal power plants or industrial processes
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
- F28D2021/0063—Condensers
-
- 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
Definitions
- the invention relates to an electricity generation installation comprising a heat storage.
- thermal storage of an installation according to the invention is inserted between a heat source and a steam power cycle.
- solar power plants include thermal storage, with storage periods of up to 15 hours.
- Storage technologies are essentially based on the sensible heat of materials and are therefore low energy densities, typically between 20 and 50 kWh / m 3 . It being understood that the energy density is the ratio between the useful thermal energy restored to the power cycle and the volume occupied by the storage material.
- Phase change materials such as, for example, nitrate salts, are also studied for their best energy density, between 50 and 100 kWh / m 3 .
- the low conductivity of these materials limits the return power of the stored thermal energy.
- the costs, availability and risks of nitrates can be prohibitive.
- the subject of the invention is an installation for producing electricity from a heat source, making it possible to dissociate electricity production from the use of said heat source over time.
- thermochemical storage device coupled to a cycle of power (CDP)
- CDP cycle of power
- said storage device being constituted by a reactor in which a reversible sorption process and an evaporator and a condenser occur, at least one of the components of the thermochemical device being mass-coupled and / or thermal to at least one element of said power cycle.
- thermochemical storage system into a power cycle, which may for example be a thermodynamic steam cycle.
- the proposed designs are adapted to different external heat sources, for example solar power or heat rejects, and to different steam power cycles.
- thermochemical storage device coupled by mass and / or heat to a power cycle, it becomes possible to shift the electrical production over time to tighter and more interesting periods of time. an environmental or economic point of view.
- thermochemical storage system involves on the one hand a reversible chemical reaction between a solid and a gas (for example: Ca (OH) 2 ° CaO + H 2 O, and on the other hand another monovariant transformation involving the same reactive gas (eg H 2 0 change in liquid / vapor state)
- a gas for example: Ca (OH) 2 ° CaO + H 2 O
- another monovariant transformation involving the same reactive gas eg H 2 0 change in liquid / vapor state
- This method makes it possible to control the operation of the storage and destocking phases, this enthalpy being stored without loss as long as the reagents (CaO and H 2 0 in the previous example) are kept separately, this which allows, for example, to shift the storage and restitution of several days. It is thus possible to carry out a long-term storage of the heat, the losses by sensible heat being negligible
- thermochemical storage device allowing high storage energy densities, typically between 100 and 600 kWh / m 3 of storage material, depending on the nature of the reactive couples, while avoiding the disadvantages noted in the state of the art relating to the availability and risks associated with the storage material.
- various temperature sources may be used. These sources of temperatures can be high, for example, of the order of 1000 ° C with the possible reaction Ba (OH) 2 ⁇ > BaO + H 2 0.
- thermochemical storage method makes it possible to store a large amount of heat with high energy densities, and a control of the storage and rendering phases. It helps to provide electric power at all times, especially when demand is high (peak hours) or when the external heat source is no longer available (at night for example in the case of energy solar) or insufficient power.
- An installation according to the invention produces improved energy densities and increased overall efficiency compared to a conventional solar power plant without storage.
- thermochemical storage and the power cycle for the storage and / or destocking phase
- mass-type integration consisting of a steam exchange between the thermochemical storage and the power cycle, in the case where the thermochemical process and the engine cycle operate with the same working fluid, for example water vapor.
- the steam engine circuit can then serve as a source / sink of reactive gas for the thermochemical storage system. The resulting energy densities will thus remain closer to those of the reactor alone.
- the proposed designs allow the operation of a thermal power plant using for example solar energy as external source of heat, driving in a wide range of storage / retrieval scenarios from continuous production day and night, to a production of duration limited during peak periods.
- Thermochemical storage is integrated between the energy source and the steam power cycle. It allows operation of a longer duration than that from the sole use of intermittent energy (solar) or even continuous power cycle.
- the duration of storage could vary between 4h and 10h, while the retrieval period could vary between 1h and 14h.
- thermochemical storage with a power cycle make it possible to reduce, depending on the type of integration envisaged, the amount of heat taken from the source. external, ie the amount of heat released to the environment.
- the proposed integrations thus make it possible, according to proposed configurations, to increase the efficiency, to reduce the size of the solar field in the case of a thermodynamic solar power station, or to reduce the size of the exchangers for heat discharges towards the ambient environment.
- the integration of the thermochemical storage system not only improves the adaptability of thermodynamic solar power plants, but also increases the overall efficiency of the cycle.
- a mass coupling between said at least one component of the thermochemical device and said at least one element of the power cycle results in a steam exchange.
- a thermal coupling between said at least one component of the thermochemical device and said at least one element of the power cycle results in a heat transfer.
- the external heat source is constituted by at least one element to be chosen from heat generating devices such as a solar power plant, a boiler, a geothermal source, or heat rejections of any thermal process. .
- the power cycle is to be chosen from steam cycles such as organic Rankine cycles or not, Hirn or Kalina.
- the power cycle is a Rankine cycle and comprises a heat exchanger accepting heat from an external source, a heat exchanger rejecting heat at a lower temperature, and a vapor expansion member, preferably a steam turbine.
- the heat source has intermittent availability and / or variability in thermal power and / or temperature and / or economic value.
- Another object of the invention is a first method of producing electricity in an installation according to the invention.
- thermochemical STC
- CDP power generation stage by the power cycle
- the external heat source simultaneously feeds the power cycle and the thermochemical storage device, and a thermal coupling is realized between the desuperheating and the condensation of the steam of the thermochemical storage device, and at least one of the elements a preheater, evaporator, superheater of a working fluid of the power cycle.
- the external heat source feeds the power cycle, and thermal coupling is performed between the reactor of the thermochemical storage device and the expanded vapors from an expansion member of the power cycle.
- the external heat source simultaneously feeds the power cycle and the thermochemical storage device, and a mass coupling is made between the reactor of the thermochemical storage device and an expansion stage of a turbine of the power cycle or of an additional independent turbine.
- the external heat source supplies only the thermochemical storage device, and a thermal coupling is made between the condenser of the thermochemical storage device and a preheater, an evaporator and possibly a superheater of the power cycle.
- the external heat source supplies only the thermochemical storage device, and a mass coupling is made between the reactor of the thermochemical storage device and an expansion stage of a turbine of the power cycle.
- a method of producing electricity according to the invention comprises a step of implementing an intermediate heat exchanger supplied by the external heat source to increase the temperature of the vapors desorbed by the thermochemical storage reactor.
- Another object of the invention is a second method of producing electricity in an installation according to the invention.
- the main characteristic of a second method according to the invention is that it comprises the following functions:
- thermochemical storage device A thermal coupling step between the reactor of the thermochemical storage device and an assembly constituted by a preheater, an evaporator and possibly a superheater belonging to the power cycle, A step of destocking and generating electricity from the heat destocked by said thermochemical reactor and transmitted to said assembly.
- a second method according to the invention comprises a step of thermal coupling between a condenser of the power cycle and an evaporator of the thermochemical storage device, so as to recover heat from said condenser to supply said evaporator.
- a second method according to the invention comprises a step of thermal coupling between the evaporator of the thermochemical storage device and an expansion stage of a turbine of the power cycle, so as to recover heat by means of an exchanger, on a vapor withdrawal at one or more intermediate stages of said turbine to supply said evaporator.
- a method according to the invention comprises a step of mass coupling between the reactor of the thermochemical device and the output of a turbine of the power cycle, so that a part of the expanded vapors at the turbine outlet is absorbed by said reactor in destocking phase.
- Another subject of the invention is a third method for producing electricity in an installation according to the invention.
- the main characteristic of a third method according to the invention is that the step of producing electricity by the power cycle is carried out simultaneously using the external heat source and the destocking of the heat accumulated in the storage device. thermochemical.
- This method has the advantage of allowing the production of electrical power greater than that achievable using only the external heat source.
- This process makes it possible to target the periods when the demand for electrical energy is crucial and for which current installations are not able to provide this electrical energy in the best conditions.
- These periods may, for example, correspond to periods when the demand for electrical energy is high (periods for which there is a peak in consumption), or to periods when the power supplied by the source external, in the case of a variable source, decreases and becomes insufficient to power the power cycle and provide the demand for electricity.
- a third method according to the invention comprises a step of thermal coupling between a condenser of the power cycle and an evaporator of the thermochemical storage device, so as to recover heat from said condenser to supply said evaporator.
- a third method according to the invention comprises a step of thermal coupling between an evaporator of the thermal storage device and an expansion stage of a turbine of the power cycle, so as to recover heat by means of an exchanger on a withdrawal at the stages of said turbine to supply said evaporator, and a thermal coupling step between the reactor of the thermal storage device and the previous withdrawal so as to superheat this steam, by means of a superheater for supplying the next expansion stage of a turbine of the power cycle.
- a third method according to the invention comprises a step of mass coupling between the reactor of the thermochemical storage device and the output of a turbine of the power cycle, so that a part of the expanded steam at the turbine outlet is absorbed by said reactor in destocking phase.
- FIG. 1 is a logic diagram showing exhaustively all the possibilities of integrating a thermochemical storage device into an installation according to the invention
- FIG. 2 is a schematic diagram of an installation according to the invention during a heat storage phase
- FIG. 3 is a schematic diagram of a first example of an installation according to the invention, during a phase of heat storage
- FIG. 4 is a schematic diagram of a second example of an installation according to the invention, during a heat storage phase
- FIG. 5 is a schematic diagram of a third example of an installation according to the invention, during a heat storage phase,
- FIG. 6 is a schematic diagram of a fourth example of an installation according to the invention, during a heat storage phase,
- FIG. 7 is a schematic diagram of a fifth example of an installation according to the invention, during a heat storage phase,
- FIG. 8 is a schematic diagram of a sixth example of an installation according to the invention during a heat storage phase
- FIG. 9 is a schematic diagram of a seventh example of an installation according to the invention, during a heat storage phase,
- FIG. 10 is a schematic diagram of an installation according to the invention during a heat destocking phase
- FIG. 11 is a schematic diagram of an eighth example of an installation according to the invention, during a heat destocking phase,
- FIG. 12 is a schematic diagram of a ninth example of an installation according to the invention, during a heat destocking phase,
- FIG. 13 is a schematic diagram of an installation according to the invention for a greater production of electrical energy during peak hours, or to compensate for a decrease in the external source,
- FIG. 14 is a schematic diagram of a tenth example of an installation according to the invention, for a larger electrical energy production
- FIG. 15 is a schematic diagram of an eleventh example of an installation according to the invention, for a larger electric power production
- FIG. 16 is a schematic diagram of a twelfth example of an installation according to the invention, using a vapor withdrawal, during a heat storage phase,
- FIG. 17 is a schematic diagram of a thirteenth example of an installation according to the invention, using a vapor withdrawal, during a heat destocking phase,
- FIG. 18 is a schematic diagram of a fourteenth example of an installation according to the invention, using a vapor withdrawal, for a larger electric power production.
- thermochemical storage system in a plant installation that overcomes the intermittency of the availability of the external power source or the variation of the power of the source or the demand for electricity produced.
- the general integration methodology shown in FIG. 1 consists in associating one or more exothermic elements of one system with one or more endothermic elements of the other system (thermal integration), or a generator of the steam of a system with one steam consumer element of the other system (mass integration).
- FIG. 1 shows, through a logic diagram, the different possibilities of integration and cascades between the three components of a method of generating electricity according to the invention, and based on a thermochemical storage device.
- An external thermal energy source system 1 which may for example be a concentrated solar field, A power cycle (CDP) is to be chosen from steam cycles such as organic or non-organic Rankine cycles, Hirn or Kalina.
- the steam power cycle is described in FIG. 2. It comprises, in a conventional manner, a steam expansion turbine 3 that may comprise several expansion stages separated by steam heaters and vapor withdrawals. for generating a work convertible into electrical energy, a preheater 6 / evaporator 2 / superheater 7 operating at high pressure, a condenser 4 operating at low pressure and ensuring the desuperheating of the steam and its condensation, and a fluid reservoir working liquid 5,
- thermochemical storage method described in FIG. 2, comprising a thermochemical reactor 12 in which a reversible sorption process occurs, either coupled to a condenser 13 for the desuperheating of the steam coming from the reactor and its condensation during the storage phase.
- thermal energy either to an evaporator 11 during the heat destocking phase, and a liquid phase reactive fluid reservoir 14.
- an intermittent source such as a solar source
- the implementation of these configurations depends on the availability of said source. In other words, in the example of a solar source, it must be taken into account that it is day or night.
- the installation can realize several functions: - Electrical production and / or storage from the external heat source, storage from the external heat source, and, in cascade, production of electricity through the power cycle fed by the steam from the reactor in storage, either by recovering its sensible and latent heat (thermal integration), or by exploiting the steam itself (mass integration). Destocking and cascading electricity production using the heat removed from the reactor. This configuration allows the production of electricity in the absence of external heat source. Production of electricity from the external heat source and in parallel another production from the destocking of the reactor.
- This configuration is particularly interesting for boosting electricity production when the source is available and meeting demand peaks.
- thermochemical reactor 12 is heated for the decomposition of the reagent (eg: Ca (OH) 2 hydroxide).
- the discharged reagent (the oxide CaO in this example) produced is stored in the same reactor 12, while the vapors (water vapor in this example) condense via an exchanger 13 and are stored as a liquid in a tank 14. This configuration simultaneously allows the production of electricity and the storage of heat.
- the liquid stored in the reservoir 14 is evaporated in the evaporator 11, and this water vapor then enters the reactor 12 and reacts exothermically with the oxide salt to form the hydroxide salt.
- the heat released by this exothermic reaction subsequently makes it possible to produce high pressure steam in the evaporator 2 of the power cycle and thus maintains the operation of the Rankine cycle for the production of electricity.
- the steam generator function is provided by the thermochemical reactor 12.
- Figure 13 shows an example of the invention according to a third object.
- o high temperature external heat source typically greater than 150 ° C corresponding to reference 1
- o evaporator of the power cycle corresponding to the reference 2 o turbine of the power cycle corresponding to the reference 3, o condenser of the power cycle corresponding to the reference 4, o water tank of the evaporator of the cycle of CDP power (also constituting a condensed vapor recovery tank), corresponding to reference 5, o preheater of working fluid (liquid) of the power cycle, corresponding to reference 6,
- thermochemical storage device STC
- thermochemical storage device corresponding to reference 12
- thermochemical storage device corresponding to the reference 13
- the heat source feeds both the STC storage and the CDP power cycle independently (no connection between the two systems). This is the classic configuration in storage phase.
- the advantage of such a configuration is that the systems management is done independently. There is therefore no constraint on the powers implemented, and the sizing of the storage is only related to the duration of the destocking and the electrical power required.
- the heat source simultaneously feeds the CDP power cycle and the STC thermochemical storage.
- the advantage of such a configuration is that there is preheating of the working fluid of the CDP by steam from the STC reactor, which reduces the external heat input to the CDP and thus partially compensates for the use of the solar field for storage.
- the heat recovered on this steam may be either sensible (steam desuperheating only, this vapor being condensed later in the STC condenser) or latent by direct condensation in the CDP preheater (thus reducing the heat to be discharged from the STC to the condenser). the atmosphere).
- the heat source simultaneously feeds the CDP power cycle and the STC thermochemical storage.
- the advantage of such a configuration is that there is all or part of the preheating and evaporation of the CDP working fluid by the steam from the STC reactor, which reduces the heat input to the CDP and thus partially compensates for the use of the solar field for storage.
- the heat recovered on this steam can be either sensible (desuperheating of the steam only, this steam being condensed subsequently in the condenser of the STC) or latent by direct condensation in the preheater or evaporator of the CDP (thus reducing the heat to be discharged to the condenser of the condenser. STC to the mood).
- thermochemical storage device STC thermochemical storage device
- the heat recovered on this expanded steam can be either sensible (desuperheating the steam) or latent if it condenses directly into the storage reactor (thus removing the condenser from the CDP).
- the heat source 1 supplies only the STC storage.
- the sensible heat and condensing vapors from the STC is used for electricity generation on the last stage of a turbine or an additional turbine.
- the heat source supplies only the STC thermochemical storage.
- the vapors from the high temperature reactor are expanded in a final stage of a power cycle turbine or an additional independent turbine for additional power generation.
- thermochemical reactor 12 This is to achieve a thermal coupling of the thermochemical reactor 12 and the heat source 1 with the preheater 6 / evaporator 2 / superheater 7 of the power cycle.
- This configuration corresponds to a recovery of the condensation heat of the CDP power cycle to the evaporator 11 of the thermochemical storage STC so that the STC and CDP assembly operates at a higher temperature.
- the CDP cycle operates at higher pressure and thus has improved performance.
- external energy 1 which may for example be solar energy
- a steam generator 2 for operating a conventional Rankine cycle.
- the thermochemical reactor 12 is heated for the decomposition of the reagent.
- Steam produced water vapor in this example
- Steam produced condenses via a first exchanger 13 and is stored as a saturated liquid in an independent water tank 14.
- the liquid water stored in the tank 14 is first evaporated at 11 thanks to the heat recovered from the vapors of extraction 8 of the first stage of the turbine 3.
- This water vapor thus produced then enters the reactor 12 and reacts exothermically with the oxide in the example presented.
- the heat released by this exothermic reaction subsequently makes it possible to produce high pressure steam in the evaporator 2 of the power cycle and thus maintains the operation of the Rankine cycle for the production of electricity.
- the steam generator function is replaced by the thermochemical reactor 12 - Configurations using the external heat source and the STC reactor in destocking phase.
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1662785A FR3060719B1 (en) | 2016-12-19 | 2016-12-19 | ELECTRICITY PRODUCTION FACILITY INCLUDING HEAT STORAGE |
PCT/FR2017/053633 WO2018115668A1 (en) | 2016-12-19 | 2017-12-18 | Installation for generating electricity comprising heat storage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3555430A1 true EP3555430A1 (en) | 2019-10-23 |
Family
ID=58455196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17828952.6A Withdrawn EP3555430A1 (en) | 2016-12-19 | 2017-12-18 | Installation for generating electricity comprising heat storage |
Country Status (4)
Country | Link |
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US (1) | US10989484B2 (en) |
EP (1) | EP3555430A1 (en) |
FR (1) | FR3060719B1 (en) |
WO (1) | WO2018115668A1 (en) |
Family Cites Families (10)
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DE2751368A1 (en) * | 1977-11-17 | 1979-05-23 | Dietrich E Dipl Ing Singelmann | Solar energy power system with chemical energy storage - uses ammonia absorption system to store energy during high input periods and release it during low input periods |
FR2577614B1 (en) * | 1985-02-14 | 1987-04-10 | Centre Nat Rech Scient | PROCESS FOR THE CHEMICAL STORAGE OF A MECHANICAL OR THERMAL ENERGY AND FOR THE RECOVERY OF AT LEAST ONE OF SAID STORED ENERGY AND INSTALLATION FOR CARRYING OUT SAID METHOD |
US20090071155A1 (en) * | 2007-09-14 | 2009-03-19 | General Electric Company | Method and system for thermochemical heat energy storage and recovery |
CN101552488B (en) * | 2008-04-03 | 2011-01-26 | 苏庆泉 | Standby power system and power supply method thereof |
WO2013025655A2 (en) * | 2011-08-12 | 2013-02-21 | Mcalister Technologies, Llc | Systems and methods for providing supplemental aqueous thermal energy |
US20130255667A1 (en) * | 2012-04-02 | 2013-10-03 | Colorado School Of Mines | Solid particle thermal energy storage design for a fluidized-bed concentrating solar power plant |
CN103742964B (en) * | 2012-10-17 | 2016-08-03 | 河南艾莫卡节能科技有限公司 | Waste heat recovery thermal power plant energy storage and system thereof |
EP2796671A1 (en) * | 2013-04-26 | 2014-10-29 | Siemens Aktiengesellschaft | Power plant system with thermochemical storage unit |
US10197338B2 (en) * | 2013-08-22 | 2019-02-05 | Kevin Hans Melsheimer | Building system for cascading flows of matter and energy |
GB201402059D0 (en) * | 2014-02-06 | 2014-03-26 | Univ Newcastle | Energy Storage device |
-
2016
- 2016-12-19 FR FR1662785A patent/FR3060719B1/en active Active
-
2017
- 2017-12-18 WO PCT/FR2017/053633 patent/WO2018115668A1/en active Application Filing
- 2017-12-18 US US16/471,414 patent/US10989484B2/en active Active
- 2017-12-18 EP EP17828952.6A patent/EP3555430A1/en not_active Withdrawn
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US20190390920A1 (en) | 2019-12-26 |
FR3060719A1 (en) | 2018-06-22 |
US10989484B2 (en) | 2021-04-27 |
WO2018115668A1 (en) | 2018-06-28 |
FR3060719B1 (en) | 2020-09-18 |
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