FR3068739A1 - DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVOIRS - Google Patents
DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVOIRS Download PDFInfo
- Publication number
- FR3068739A1 FR3068739A1 FR1700723A FR1700723A FR3068739A1 FR 3068739 A1 FR3068739 A1 FR 3068739A1 FR 1700723 A FR1700723 A FR 1700723A FR 1700723 A FR1700723 A FR 1700723A FR 3068739 A1 FR3068739 A1 FR 3068739A1
- Authority
- FR
- France
- Prior art keywords
- tank
- energy
- electric energy
- ocean
- expansion
- 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.)
- Pending
Links
Classifications
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- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/003—Systems for storing electric energy in the form of hydraulic energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
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- 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
- Y02E10/20—Hydro 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
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
L'invention concerne un réservoir base au fond de l'océan qui permet, moyennant une ou plusieurs pompes, de stocker de l'énergie en faisant le vide. L'énergie est restituée par le flux d'eau entrant dans le réservoir après ouverture des vannes. Il est constitué d'un réservoir (1) résistant à la pression hydrostatique, d'une pompe (2), d'une turbine couplé à un alternateur(3) et de diverses vannes.The invention relates to a tank at the bottom of the ocean that allows, by means of one or more pumps, to store energy by evacuating. The energy is returned by the flow of water entering the tank after opening the valves. It consists of a tank (1) resistant to hydrostatic pressure, a pump (2), a turbine coupled to an alternator (3) and various valves.
Description
La présente innovation concerne le stockage de l'énergie électrique dans un réservoir sous-marin.The present innovation relates to the storage of electrical energy in an underwater tank.
Les techniques actuelles pour stocker l'énergie électrique utilisent différentes technologies : batteries, barrage hydraulique ou stockage d'air comprimé dans des cavités sous-terraines. Toutes ces technologies comportent des inconvénients :1e cout des batteries devient prohibitif lorsqu' il faut stocker de grandes quantités d'énergie ; les barrages hydrauliques mobilisent des espaces importants et nécessitent de grandes quantités d'eau en aval à remonter et le stockage d'air comprimé donne des rendements médiocres.Current techniques for storing electrical energy use different technologies: batteries, hydraulic dam or storage of compressed air in underground cavities. All of these technologies have drawbacks: the cost of batteries becomes prohibitive when large amounts of energy have to be stored; hydraulic dams mobilize large spaces and require large quantities of water downstream to go up and the storage of compressed air gives poor yields.
Le procédé consiste à réaliser un réservoir reposant sur les fonds sous marins .The method consists in making a tank resting on the seabed.
Lors de la phase de stockage de l'énergie électrique, le réservoir (1) est vidé progressivement par des pompes (2) et les vannes du réservoir sont fermées quand le réservoir est vide.During the electrical energy storage phase, the tank (1) is gradually emptied by pumps (2) and the tank valves are closed when the tank is empty.
Pour la restitution de l'énergie, les vannes sont ouvertes et le flux de l'eau qui pénètre dans le réservoir actionne les turbines (3) qui entraîne Γ alternateur :1e courant électrique est évacué vers la cote par un câble électrique.For the return of energy, the valves are open and the flow of water which enters the tank activates the turbines (3) which drives the alternator: the electric current is evacuated to the coast by an electric cable.
La quantité d'énergie stockée est d'autant plus importante que la profondeur à laquelle le réservoir est ancrée est importante.The greater the amount of energy stored, the greater the depth to which the tank is anchored.
Le réservoir peut avoir une forme sphérique, cylindrique, parallélépipédique ou toute autre forme qui assurerait la stabilité des parois du réservoir sous la pression de l'eau.The tank may have a spherical, cylindrical, parallelepiped shape or any other shape which would ensure the stability of the walls of the tank under the pressure of water.
Selon des modes de réalisation particulièreAccording to particular embodiments
-un système de compression et de détente d'air (4)est adjoint au réservoir : après avoir vidé Γ eau du réservoir, un compresseur d'air comprime de Γ air amené par une conduite flexible (5)rejoignant la surface et stocke ainsi une quantité supplémentaire d'énergie.- an air compression and expansion system (4) is added to the tank: after having emptied water from the tank, an air compressor compresses air supplied by a flexible pipe (5) joining the surface and thus stores an additional amount of energy.
-Le ballast (6)mis en place pour éviter une remontée du réservoir quand il est vidé de son eau est utilisé pour conserver la chaleur généré par la compression de Γ air : en effet Γ air comprimé subit une élévation de température lors de sa compression et un refroidissement lors de sa détente entraînant des températures négatives qui peuvent geler le système de détente. La chaleur conservée dans le ballast, grâce à l'importante capacité calorifique de celui-ci, permet de réchauffer l'air avant sa détente et éviter le gel du système de détente. Fig (2)-The ballast (6) put in place to avoid a rise in the tank when it is emptied of its water is used to conserve the heat generated by the compression of Γ air: indeed comprimé compressed air undergoes a rise in temperature during its compression and cooling during its expansion resulting in negative temperatures which can freeze the expansion system. The heat stored in the ballast, thanks to its high calorific capacity, makes it possible to heat the air before its expansion and avoid freezing of the expansion system. Fig (2)
-Plusieurs réservoirs sont relies entre eux selon une architecture de type série ou parallèle pour optimiser le rendement des de turbines, pompes et compresseurs mis en œuvre.-Several tanks are connected together according to a series or parallel type architecture to optimize the efficiency of the turbines, pumps and compressors used.
La figure 1 illustre l'invention.Figure 1 illustrates the invention.
La figure 1 représente le réservoir (1), la pompe (2) et la turbine(3).Figure 1 shows the tank (1), the pump (2) and the turbine (3).
La figure 2 représente le système de compression d'air (4) la conduite flexible (5)et le ballast (6).Figure 2 shows the air compression system (4) the flexible pipe (5) and the ballast (6).
Le dispositif selon l'invention est particulièrement destiné au stockage de l'énergie électrique en utilisant des réservoirs sous-marins.The device according to the invention is particularly intended for the storage of electrical energy by using underwater tanks.
Claims (4)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1700723A FR3068739A1 (en) | 2017-07-06 | 2017-07-06 | DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVOIRS |
| FR1800222A FR3068740A1 (en) | 2017-07-06 | 2018-03-14 | DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVES |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1700723 | 2017-07-06 | ||
| FR1700723A FR3068739A1 (en) | 2017-07-06 | 2017-07-06 | DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVOIRS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3068739A1 true FR3068739A1 (en) | 2019-01-11 |
Family
ID=62816621
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1700723A Pending FR3068739A1 (en) | 2017-07-06 | 2017-07-06 | DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVOIRS |
| FR1800222A Withdrawn FR3068740A1 (en) | 2017-07-06 | 2018-03-14 | DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVES |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1800222A Withdrawn FR3068740A1 (en) | 2017-07-06 | 2018-03-14 | DEVICE FOR STORING ELECTRIC ENERGY IN UNDERWATER RESERVES |
Country Status (1)
| Country | Link |
|---|---|
| FR (2) | FR3068739A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH715771A2 (en) * | 2019-01-23 | 2020-07-31 | Pedretti Mauro | Method and device for storing energy. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6037316B2 (en) * | 1977-06-28 | 1985-08-26 | 工業技術院長 | Pressurized water energy usage method |
| NZ599275A (en) * | 2009-09-23 | 2014-07-25 | Bright Energy Storage Technologies Llp | System for underwater compressed fluid energy storage and method of deploying same |
| DE102011012261A1 (en) * | 2011-02-24 | 2012-08-30 | Werner Rau | Electric power storing device for storage tank power plant, recovers potential energy generated by emptying tank into surrounding waters using pump devices under application of electric energy, during filling of tank |
| CA2935279A1 (en) * | 2014-01-15 | 2015-07-23 | Bright Energy Storage Technologies, Llp | Underwater energy storage using compressed fluid |
-
2017
- 2017-07-06 FR FR1700723A patent/FR3068739A1/en active Pending
-
2018
- 2018-03-14 FR FR1800222A patent/FR3068740A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3068740A1 (en) | 2019-01-11 |
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