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WO2010094823A2 - Batteries sous-marines à couple adapté - Google Patents

Batteries sous-marines à couple adapté Download PDF

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Publication number
WO2010094823A2
WO2010094823A2 PCT/ES2010/000074 ES2010000074W WO2010094823A2 WO 2010094823 A2 WO2010094823 A2 WO 2010094823A2 ES 2010000074 W ES2010000074 W ES 2010000074W WO 2010094823 A2 WO2010094823 A2 WO 2010094823A2
Authority
WO
WIPO (PCT)
Prior art keywords
battery
storage
gas
submarine
torque
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.)
Ceased
Application number
PCT/ES2010/000074
Other languages
English (en)
Spanish (es)
Other versions
WO2010094823A3 (fr
Inventor
Javier DÁVILA MARTÍN
Manuel Ruiz Arahal
Fernando Ruiz Del Olmo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PREXTOR SYSTEMS SL
Universidad de Sevilla
Original Assignee
PREXTOR SYSTEMS SL
Universidad de Sevilla
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ES200900477A external-priority patent/ES2356209B1/es
Application filed by PREXTOR SYSTEMS SL, Universidad de Sevilla filed Critical PREXTOR SYSTEMS SL
Publication of WO2010094823A2 publication Critical patent/WO2010094823A2/fr
Publication of WO2010094823A3 publication Critical patent/WO2010094823A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/24—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy to produce a flow of air, e.g. to drive an air turbine
    • 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
    • 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
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • 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
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • 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
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • 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

Definitions

  • the invention falls within the framework of energy regulation and storage, with special application to the use of renewable energy sources and with collateral applications to the classification, separation and purification of all types of gases.
  • CAES technology obtains better yields and is economically more advantageous than reversible pumping plants and that is why, linked to the development of wind power is taking a lot of boom in recent times, mainly in the United States.
  • this technology has a serious drawback, since being the caves of a constant volume the air inside must be compressed / decompressed between two determined pressures, which implies a significant loss of performance of the compressors and turbines, and, what is worse, it requires volumes of the cavern much higher than those that would be necessary if the pressure were kept constant.
  • the torque created in either case constitutes a serious problem at the time of the construction of the underwater batteries, since they are pairs of very high magnitude that would cause sudden movements of the underwater batteries if they are intended to submerge by flotation, certainly causing damage to the charge / discharge pipes and even the submarine batteries themselves.
  • the first novelty of the invention consists in unfolding in two parts the counterweight of the underwater batteries, in such a way that the lower counterweight is always slightly greater or even the same as the upper counterweight, thus causing a slightly corrective or zero torque before a possible overturn of the same (Figure 3).
  • This system called a double-weighted adjusted torque underwater battery, can be arranged with a fixed volume storage chamber where the storage gas coexists with seawater from outside the battery (Figure 3), or with a chamber of variable volume storage which, when filled with storage gas, moves vertically to the upper counterweight (Figure 4).
  • the underwater battery of double-weighted adjusted torque allows us to use the counterweights themselves as insulation of the upper and lower surfaces of the underwater batteries, which solves in great measure the problem of the thermal insulation of the same, since normally the submarine batteries will be of very low height.
  • These underwater batteries can also be arranged with multiple chambers, having two or more gas storage chambers, superimposed as a sandwich, the upper chamber being the first to be filled, so that, once its counterweight is balanced, it will immediately be filled. lower, and so on (Figure 5).
  • the key to making viable the construction of submarine batteries of adjusted torque of double counterweight with large energy storage capacity and that constitutes an essential part of the invention lies firstly in manufacturing them on the coast, of such that the submarine battery is manufactured first and then it begins to manufacture the loading / unloading pipe on land and to tow the assembly slowly offshore, either with the submarine battery of adjusted torque housed in a tugboat and the load pipe / discharge being maintained on the surface by flotation or by dragging the assembly by the towing vessel while maintaining floating on the surface of the sea.
  • the loading / unloading pipeline is manufactured on land while the assembly is carried along the sea surface to the place from where the assembly will be immersed.
  • the compressor will be connected to the loading / unloading pipe and the immersion of the assembly will begin with controlled flotation, governed by a control system that will act on the compressor and on the inlet / outlet valves of the battery submarine depending on the depth at which the submarine battery of torque adjusted at each moment is located until it is taken to its definitive location at the bottom of the sea.
  • the system may be equipped with additional floats that are filled with seawater by the control system to submerge the assembly.
  • these submarine batteries of tight torque can be manufactured in a modular way, so that the modules have the necessary dimensions to be managed by the trawler, submerging them by flotation to a depth not very large but enough that they are not affected by overpressures due to waves (module coupling depth), having one or several flexible interconnecting pipes with other modules, of sufficient length to reach the surface from the depth of module coupling, to be definitively lowered the complete set to the seabed once all modules have been coupled, leaving an interconnection pipe with possible future modules of sufficient length to reach the surface from the housing depth of Ia drums.
  • the double-weighted adjusted torque underwater battery minimizes the torque created before any possible rotation of the underwater batteries. This fact is of extreme importance since it allows its immersion by flotation until its settlement on the seabed, even with the loading / unloading pipe coupled from the beginning, without risks of sharp turns due to the action of waves, sea currents or by Any other eventuality.
  • this system also allows the submarine battery of adjusted torque to be raised to the surface if necessary in case of any eventuality.
  • the invention also contemplates the possibility that one or both of its counterweights have a core of urban or industrial solid waste, including radioactive waste, being able to be covered with earth or any other heavy material that in turn serves them padding, and being enclosed in a steel drawer or any other material resistant to compression that has one of the faces free of movement to adjust the volume of the counterweight depending on the static pressure of the outside water, being able to be waterproofed to keep the interior dry and serve as thermal insulation of the gas inside the battery (Figure 6).
  • Another aspect of the invention consists in providing the counterweights in a way that adjusts to the distribution of rising forces of the gas of the submarine battery of adjusted torque, so that their size is optimized.
  • the invention also contemplates providing submarine batteries with an adjusted torque of a total safety system against breakage of the battery, consisting of Ia incorporation of a breakage detection system that operates two sudden discharge valves of the storage gas, one to do it through the battery charge / discharge pipe, and the other to do it through an auxiliary flexible discharge pipe at its lower end and with a buoy at its upper end to maintain verticality (Figure 6).
  • the invention includes an efficient filling / emptying system, consisting of on the one hand, carry out the filling / emptying always from the highest point of the storage chamber, by means of a pipe system that reaches all the corners or ends of the upper part of the storage chamber, and on the other hand, making the intake / drainage of seawater always through the lowest point of the storage chamber, through a valve system commanded by a control system of the inclination of the battery (Figure 6).
  • the storage chamber can be subdivided into several by vertical partitions ( Figure 6), and thus proceed to fill / empty the chambers of in such a way that a distribution of forces of the storage gas is maintained on the battery as homogeneous as possible.
  • Another system object of the invention consists in providing submarine batteries with a tight torque of a barrier to protect against sea currents and a sediment cleaning system on the submarine battery based on diffusers fed with the storage gas itself ( Figure 6).
  • the invention also includes the possibility of introducing the storage gas from its lower base, the battery being subjected to the static pressure of the outside water through an opening in its upper base, the column of the storage gas ascending during its charging by the interior of the battery in such a way that it is continually encountering progressively higher walls, and the dimensions of the upper counterweight can be drastically reduced.
  • the invention also includes the possibility of arranging a battery with a single upper counterweight, but constructed in such a way that it turns out to be flexible, which will rise and fall when the battery is charged / discharged, which would take advantage of hollows at the bottom of the sea to be located, and it would consist only of a bag of flexible plastic material that would be pressed against the bottom of the sea below and against the flexible counterweight above (Figure 7).
  • the flexible counterweight battery could eliminate the lower part of the bag, since, if said seabed has sufficient consistency, gas losses from the bottom could be negligible.
  • the dimensions of the flexible counterweight could be considerably reduced if the loading / unloading pipe is located at the lowest point of the seabed in such a way that the storage gas is always finding continuously ascending surfaces during the filling of the battery, that is, if it becomes a submarine battery with an upward charge and flexible counterweight.
  • the flexible counterweight underwater batteries there is also the adjusted torque, since its rotation is prevented by using the seabed itself as a lower counterweight.
  • the manufacture of submarine batteries of adjusted torque of flexible counterweight is much simpler than that of the rest of submarine batteries of adjusted torque, since it is feasible to divide the counterweight into parts and gradually lower them from a boat with a crane.
  • the invention also includes the possibility of lowering the parts of the counterweight with a bivalve spoon whose walls are hollow and contain air, in such a way that they counteract or reduce the weight to be supported and do not create torque by being around the counterweight.
  • these spoons would be equipped with a focus and an underwater video camera that will transmit the image of the seabed to the crane ship to be able to execute with precision the unloading maneuver.
  • the invention also includes the possibility of liquefying the storage gas, compressing it until it reaches its vapor pressure, thus drastically reducing the dimensions of the underwater battery, and also drastically reducing the dimensions of the necessary counterweight or counterweights, and even completely eliminating them if it turns out that the storage liquid has a higher density than seawater (Figure 8).
  • This system reduces the volume to be stored in such an important way that it could even be thought of its storage in pressure tanks on land.
  • Another possibility of great interest that includes the invention consists in using atmospheric air as an open circuit storage fluid, that is, consuming air from the atmosphere to charge the underwater battery of adjusted torque and returning the air to the atmosphere once turbinated after the discharge, but with an important caveat, which is that the compression to which the air has been subjected is to the less the necessary one so that the CO 2 that it contains or any other gas that wants to be eliminated from it is liquefied.
  • CO 2 separates from the air and can be discharged into the seabed, using the resulting clean air to be discharged and turbinated when it is desired to generate energy.
  • the invention includes a triple gas battery system to combine the storage of electrical energy from the coastal electricity network with the use of the energy of sea waves and / or the force of offshore wind, characterized by having a low pressure battery (which may be the atmosphere in the case of using air as storage gas), from which the gas is compressed to an underwater battery of medium pressure adjusted torque consuming energy from the coastal electricity network , subsequently compressing the gas from the submarine battery of adjusted medium pressure torque to an underwater battery of adjusted high pressure torque using a system for harnessing the energy of sea waves and / or a system for harnessing the energy of Ia wind force that uses these energy sources to transmit it directly to the storage gas thus increasing its pre sion, leaving the total energy used stored in the form of gas stored in the high pressure submarine battery, to be subsequently turbined to the low pressure battery when necessary (Figure 9).
  • a low pressure battery which may be the atmosphere in the case of using air as storage gas
  • the gas is compressed to an underwater battery of medium pressure adjusted torque consuming energy from the coastal electricity network
  • the triple gas battery system makes the use of wave or offshore wind energy viable to transmit it directly to the storage gas, since, by feeding on the medium pressure battery, the problem of heating the water is considerably reduced storage gas when compressed, which implies significant energy losses in this type of system or forces strong thermal insulation.
  • auxiliary batteries of intermediate auxiliary adjusted torque between the medium pressure and the high pressure Ia it is possible to incorporate one or several auxiliary batteries of intermediate auxiliary adjusted torque between the medium pressure and the high pressure Ia, to be able to make different jumps between them with the system of harnessing the energy of sea waves depending on the characteristics of the waves, governed by a control system.
  • the invention includes the possibility of using CO 2 previously captured from thermal or industrial plants as storage gas in energy storage systems in underwater batteries in a closed circuit, so that a certain amount of CO 2 is retained in the system, avoiding in this way its emission to the atmosphere.
  • the invention includes an industrial gaseous effluent separation system, consisting of using said effluents as storage gas in an open-circuit energy storage system (Figure 10), in such a way that the gaseous effluents are compressed to make them enter the battery system or submarine batteries of adjusted torque, obtaining up to this point a first advantage by taking full advantage of the remaining pressure available to said effluents.
  • an industrial gaseous effluent separation system consisting of using said effluents as storage gas in an open-circuit energy storage system (Figure 10), in such a way that the gaseous effluents are compressed to make them enter the battery system or submarine batteries of adjusted torque, obtaining up to this point a first advantage by taking full advantage of the remaining pressure available to said effluents.
  • the submarine batteries of adjusted torque will act as a storage gas decantation tank, which, once it is at rest and stored for a certain time, will be redistributed by layers of the different gases that compose it due to the different densities of the same, being possible the complete and precise separation of each gas, emitting to the atmosphere after being turbinated the gases not harmful to the environment, and sending the rest of gases to treatment systems .
  • the invention also includes a system for efficient use of heat generated during the compression of the storage gas, characterized by proceeding with the cooling of the storage gas prior to its introduction to
  • the underwater battery yielding its heat to another fluid for various uses prior to its introduction to the underwater battery of adjusted torque (brine from desalination plants by reverse osmosis to proceed to its evaporation, pretreated water from wastewater treatment plants to proceed to its biological treatment, fish farm water to increase its productivity, etc.), or simply allowing its heat exchange with seawater to increase its evaporation and allow the formation of clouds that increase the rains of a given geographical area.
  • the heat exchange could be carried out in the conduction to the battery itself, providing concentric pipes where the heat exchange would occur, instead of having to add a heat exchanger to the system ( Figure 11).
  • the counterweight will always be self-located at the bottom of the battery, significantly reducing the rough torque that is created by being in the lower part of the battery, since the relative mobility of the counterweight on the sphere makes it tend to Static, suffering only slight movements due to friction.
  • it is also a type of submarine batteries of tight torque.
  • these batteries have the enormous advantage that they will always place themselves “standing” on the seabed (that is, with the counterweight placed at the bottom), regardless of the non-existence of an appropriate foundation and the morphology of the sea bottom.
  • the charge / discharge conduits of compact underwater batteries will have their section closest to them constructed with a flexible material (that is, they will be hoses instead of pipes).
  • these hoses will continue inside the batteries, and their end end will be connected to a small float that will always place it in the highest position inside the battery. In this way, the optimal filling / emptying from the energy point of view of the batteries is guaranteed at all times, and it is also avoided having to go to pipe and valve networks that complicate the construction and maintenance of the underwater batteries. And, obviously, the outer section of the hose will provide a degree of relative freedom of movement between the underwater battery and the inlet / outlet line that will prevent it from being damaged, both during its immersion and during the operation of the battery.
  • the air that is injected into the battery will be housed within a flexible membrane, which will prevent its direct contact with seawater, preventing its dissolution in it, and allowing the float of the inlet system to perform its function correctly.
  • Compact underwater batteries have the additional advantage that being spherical they have an optimal relationship between their volume and their surface, which means that the material requirements for the construction of their walls are minimized.
  • Figure 9 Triple gas battery system for combination of wave plants and / or offshore wind farms with the regulation of electricity from networks near the coast
  • FIG. 10 Industrial gaseous effluent treatment system in underwater batteries
  • the preferred embodiment of the invention is undoubtedly the spherical compact battery, represented in Figure 12, and the most suitable procedure for its construction and maintenance will be described below.
  • the spherical tank In the first place, the spherical tank is manufactured, with materials resistant to pressure and duly protected against marine corrosion. An ideal place for the construction of underwater batteries could be a shipyard.
  • a material that could be very suitable to use as a counterweight is simply earth, because it has a much greater weight than water and is easily available anywhere, and also can fulfill the mission of sliding inside the tank to adjust the position of the battery.
  • the earth could be left loose inside, or wrapped in a flexible membrane to avoid possible disposal to the outside.
  • the membrane that will contain the air and the air distribution system by means of the hose and the float is added, and from there the construction of the load / discharge conduit begins, which is designed to be in equilibrium of forces between its own weight and the buoyant thrust of the air inside, adding the counterweights or floats that are necessary at each point.
  • the battery pack plus inlet / outlet conduction is towed to the desired place, and it is connected to the compressor of the plant, in order to begin with the immersion of the battery by controlled flotation, which will be done by adjusting the pressure and volume of the air inside the battery depending on the orders of a control system.
  • the underwater battery Once located in its final position, the underwater battery will begin its operation, but always respecting a safety volume that will remain permanently filled with seawater to prevent the battery from ascending when it is full of air.

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  • Engineering & Computer Science (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 des systèmes de stockage d'énergie de manière sûre et efficace par compression/décompression d'un gaz, lesquels systèmes tirent profit de la pression statique de l'eau de mer ou d'un lac et de son stockage dans des batteries sous-marines dans lesquelles le couple engendré par les forces de flottaison du gaz et du poids du contrepoids est adapté. L'invention concerne également leurs procédés de fabrication, les systèmes s'avérant être de grandes dimensions. En outre, l'invention concerne l'utilisation de batteries sous-marines à couple adapté comme des systèmes de séparation et de purification de tout type de gaz, en particulier d'air et d'effluents industriels.
PCT/ES2010/000074 2009-02-20 2010-02-19 Batteries sous-marines à couple adapté Ceased WO2010094823A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESP200900477 2009-02-20
ES200900477A ES2356209B1 (es) 2009-02-20 2009-02-20 Baterías submarinas de par ajustado.
ESP201000129 2010-02-04
ES201000129 2010-02-04

Publications (2)

Publication Number Publication Date
WO2010094823A2 true WO2010094823A2 (fr) 2010-08-26
WO2010094823A3 WO2010094823A3 (fr) 2010-10-14

Family

ID=42634272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2010/000074 Ceased WO2010094823A2 (fr) 2009-02-20 2010-02-19 Batteries sous-marines à couple adapté

Country Status (1)

Country Link
WO (1) WO2010094823A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB466985A (en) * 1936-05-23 1937-06-09 Servan Georges Cantacuzene Tank for the subwater storage of a liquid specifically lighter than water
US3487484A (en) * 1967-09-05 1970-01-06 Sanders Associates Inc Tuned floating bodies
JPS54164020A (en) * 1978-06-16 1979-12-27 Fumio Ootsu Underwater storage apparatus for compressed gas
EP1971773A1 (fr) * 2005-12-07 2008-09-24 The University Of Nottingham Génération d énergie
US7654279B2 (en) * 2006-08-19 2010-02-02 Agr Deepwater Development Systems, Inc. Deep water gas storage system

Also Published As

Publication number Publication date
WO2010094823A3 (fr) 2010-10-14

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