US20120263537A1 - Systems, Methods And Assemblies For Supplying Power To An Offshore Facility - Google Patents
Systems, Methods And Assemblies For Supplying Power To An Offshore Facility Download PDFInfo
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- US20120263537A1 US20120263537A1 US13/415,315 US201213415315A US2012263537A1 US 20120263537 A1 US20120263537 A1 US 20120263537A1 US 201213415315 A US201213415315 A US 201213415315A US 2012263537 A1 US2012263537 A1 US 2012263537A1
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- facility
- tubular member
- turbine
- water level
- air
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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
- F03B13/12—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
- F03B13/141—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 with a static energy collector
- F03B13/142—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 with a static energy collector which creates an oscillating water column
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- 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
- F05B2210/40—Flow geometry or direction
- F05B2210/404—Flow geometry or direction bidirectional, i.e. in opposite, alternating directions
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- 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
- F05B2240/91—Mounting on supporting structures or systems on a stationary structure
- F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
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- 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
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
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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
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Abstract
The present invention is directed to processes and systems that use wave energy to drive one or more air turbines associated with an offshore facility, wherein such turbines can generate electrical power for use on the offshore facility and/or adjacent facilities and equipment. The offshore facility can be an offshore platform or a floating vessel. The turbine can be housed within a structural member of the facility or a tubular member suspended from the facility. The turbine can also be housed within a tubular member connected to a structural member of the facility.
Description
- This application claims the benefit of, and priority to U.S. Provisional Patent Application No. 61/451,649 filed on Mar. 11, 2011, and U.S. Provisional Patent Application No. 61/555,325 filed on Nov. 3, 2011.
- This invention relates generally to use of renewable energy to provide power on offshore oil and gas facilities, and specifically to the use of low-head hydro-air turbines to produce said power from wave-induced air pressure.
- Offshore oil and gas platforms have tremendous electrical power needs. The electrical loads on fixed and floating offshore facilities are typically supplied by fossil fuel-driven power generating equipment (e.g., diesel generators). Smaller loads, less than about 50 kW, are often supplied by small-scale renewable energy generators such as solar panels or micro-wind turbines. Examples of facilities having such power requirements are fixed platforms having legs extending to the sea floor, floating platforms that are typically secured to the sea floor with lines, and floating production storage and offloading (FPSO) vessels.
- In view of the foregoing, methods and systems for producing/generating larger (e.g., greater than 50 kW) electrical power loads from renewable energy sources would be very beneficial—particularly wherein such methods/systems take up minimal space and/or are utilized/positioned in a manner that does not challenge the spatial constraints that exist perennially on such offshore platforms.
- The present invention is directed to methods, systems, and assemblies that use wave energy to drive one or more air turbines associated an offshore hydrocarbon facility, wherein such turbines can generate electrical power for use on the offshore facility and/or nearby exploration and production (E&P) facilities and equipment.
- In some embodiments, the present invention is directed to one or more methods for harnessing or otherwise capturing wave energy for use on an offshore oil and/or gas platform, the methods comprising the steps of: (1) incorporating an oscillating water column into an offshore oil and/or gas platform, wherein water, driven by wave energy, enters and leaves from an inlet/outlet port that is integrated into the platform's structure, and wherein the inward/outward flow of water raises and lowers the water level in the oscillating water column, thereby effecting pressure changes in the air residing above the water in said column; (2) utilizing the pressure changes in the air above the oscillating water column to drive a hydro-air turbine (e.g., Wells-type turbine) that is coupled with an electric power-generating device (e.g., a rotating alternator) so as to generate electric power; and (3) using (e.g., via a power take-off cable) the electric power to power devices on or near the offshore oil/gas platform.
- In some other embodiments, the present invention is directed to one or more systems for harnessing or otherwise capturing wave energy for use on an offshore oil and/or gas platform, the system comprising the following components: (1) an offshore oil and/or gas platform having a support structure, wherein said support structure comprises a columnar volume with a common inlet/outlet port at water level; (2) an oscillating water column within the columnar volume of the support structure, the oscillating water column having an oscillating (rising/falling) water level, the water level in said column being raised and lowered by wave-induced flow of water into and out of the common inlet/outlet; (3) a variable volume of air above the water level; (4) a hydro-air turbine (e.g., a Wells-type turbine) housed in the columnar volume of the support structure above the water level and variable volume of air, wherein the turbine rotates in response to changes in the air volume above the water level; (5) a rotating alternator (or other similar device) driven by the turbine via a shaft; (6) an air intake/discharge opening located above the turbine; and (7) a power take-off cable connected to the rotating alternator on one end, and one or more electrical devices on another end.
- The foregoing has outlined rather broadly the features of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
- For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawing, in which:
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FIG. 1 is a schematic environmental view of an offshore facility in accordance with one or more embodiments of the present invention; -
FIG. 2 is a schematic view of a power generating assembly and system with air turbine positioned within a support structure of the facility ofFIG. 1 , in accordance with one or more embodiments of the present invention; and -
FIG. 3 is a schematic view of an alternative embodiment of the power generating assembly and systemFIG. 2 . - As mentioned in the foregoing section, the present invention is directed to processes, methods, assemblies and systems that utilize wave energy to drive one or more air turbines incorporated into or otherwise associated with an offshore facility, wherein such turbines can generate electrical power for use on or near the offshore facility.
- Referring to
FIG. 1 , anoffshore facility 11 is shown with its operating area above the surface of thesea 13.Facility 11 is illustrated as a fixed platform, but is not intended to limit the scope of this disclosure as other types of facilities have already been discussed and are contemplated. Typically, a plurality ofrisers 15 extend fromfacility 11 to subseawellheads 17 positioned on theseafloor 19.Risers 15 andwellheads 17 are illustrated as production risers and wellheads, but those skilled in the art will easily appreciate that the scope of the present disclosure would also include risers and subsea assemblies associated with drilling operations. In embodiment illustrated inFIG. 1 , a plurality of legs or supports 21 extend betweenfacility 11 and thesea floor 19 to provide stability forfacility 11. In alternative embodiments offacility 11, supports 21 may be anchor or mooring lines.Supports 21 of the embodiment shown inFIG. 1 preferably have at least a portion with a hollow interior. - Referring to
FIG. 2 , at least one embodiment of a power generating assembly andsystem 200 is shown. In the embodiment shown inFIG. 2 , assembly andsystem 200 includes asupport structure 201,support structure 21 inFIG. 1 . The hollow interior ofsupport structure 201 defines a columnar volume with acommon opening 211 at sea orwater level 213. In the embodiment shown inFIG. 2 , opening is formed through a sidewall ofstructure 211. Water enters and exits the columnar volume ofsupport structure 201 throughopening 211, thereby allowing the waterline within columnar volume to oscillate as the water level rises and lowers with the waves. Such oscillating water level defines an oscillatingwater column 203 withinsupport structure 211, having a variable volume of air above the water level. - A
turbine 205 is housed in the columnar volume ofsupport structure 201 above the water level and variable volume of air. Turbine 205 can be either a single-stage turbine or a multi-stage turbine. Turbine 205 rotates in response to changes in the air pressure due to the increasing and decreasing volume associated with oscillatingwater column 203. A rotating alternator 209 (or other similar device) is mechanically driven by a shaft ofturbine 205 to generate electricity responsive to the rotation ofturbine 205. A power take-off cable 215 is connected to the rotating alternator, so that one or more electrical devices are in electrical communication withalternator 209. Anotheropening 207 is formed throughsupport structure 201, aboveturbine 205 to allow air flow into and out of the columnar volume. - Referring to
FIG. 3 , at least one additional embodiment of a power generating assembly andsystem 300 is shown. In the embodiment shown inFIG. 3 , assembly andsystem 300 includes atubular member 302 suspended from facility 11 (FIG. 1 ).FIG. 3 illustratestubular member 302 as being adjacent to asupport structure 301 merely for the purpose of illustrating that tubular member is different fromsupport structures 301 offacility 11. Tubular member can be a blank riser or casing suspended from a platform or over the side of an FPSO depending on the embodiment of the system. In the illustration ofFIG. 3 ,tubular member 302 has a hollow interior of that defines a columnar volume with acommon opening 311 at sea orwater level 313. In the embodiment shown inFIG. 3 , opening 311 is formed at a lower end oftubular member 302, but it would also be through a sidewall similar to opening 211 ofFIG. 2 . Water enters and exits the columnar volume oftubular member 302 through opening 311, thereby allowing the waterline within columnar volume to oscillate as the water level rises and lowers with the waves. Such oscillating water level defines an oscillatingwater column 303 withintubular member 302, having a variable volume of air above the water level. - A
turbine 305 is housed in the columnar volume oftubular member 302 above the water level and variable volume of air. Turbine 305 can be either a single-stage turbine or a multi-stage turbine.Turbine 305 rotates in response to changes in the air pressure due to the increasing and decreasing volume associated with oscillatingwater column 303. A rotating alternator 309 (or other similar device) is mechanically driven by a shaft ofturbine 305 to generate electricity responsive to the rotation ofturbine 305. A power take-offcable 315 is connected to the rotating alternator, so that one or more electrical devices are in electrical communication withalternator 309. Anotheropening 307 is formed throughtubular member 302, aboveturbine 305 to allow air flow into and out of the columnar volume. - In some embodiments, the present invention is directed to methods for producing power from wave energy for use on an offshore facility, the method comprising the steps of: (1) incorporating an oscillating water column into an offshore facility, wherein water, driven by wave energy, enters and leaves from an opening that is integrated into the facility's structure, and wherein the inward/outward flow of water raises and lowers the water level in the oscillating water column, thereby effecting pressure changes in the air residing above the water in said column; (2) utilizing the pressure changes in the air above the oscillating water column to drive a turbine (e.g., a Wells-type turbine) that is coupled with an electric power-generating device (e.g., a rotating alternator) so as to generate electric power; and (3) using (e.g., via a power take-off cable) the electric power to power devices on the offshore facility.
- Oscillating water columns (OWCs), as well as the use of OWCs in harnessing wave are known in the art. Examples of such OWCs can be found in Nishikawa, U.S. Pat. No. 4,719,754; and in Sieber, U.S. Pat. No. 7,836,689.
- In some embodiments, the present invention is directed to methods for producing power from wave energy for use on an offshore facility, the method comprising the steps of: (1) associating an oscillating water column with an offshore facility, wherein water, driven by wave energy, enters and leaves from an opening that is integrated into a tubular member suspended from the facility, and wherein the inward/outward flow of water raises and lowers the water level in the oscillating water column, thereby effecting pressure changes in the air residing above the water in said column; (2) utilizing the pressure changes in the air above the oscillating water column to drive a turbine (e.g., a Wells-type turbine) that is coupled with an electric power-generating device (e.g., a rotating alternator) so as to generate electric power; and (3) using (e.g., via a power take-off cable) the electric power to power devices on the offshore facility.
- In further embodiments, the present invention is directed to methods for producing power from wave energy for use on an offshore facility, the method comprising the steps of: (1) associating an oscillating water column with an offshore facility, wherein water, driven by wave energy, enters and leaves from an opening that is integrated into a tubular member, and wherein the inward/outward flow of water raises and lowers the water level in the oscillating water column, thereby effecting pressure changes in the air residing above the water in said column; (2) utilizing the pressure changes in the air above the oscillating water column to drive a turbine (e.g., a Wells-type turbine) that is coupled with an electric power-generating device (e.g., a rotating alternator) so as to generate electric power; and (3) using (e.g., via a power take-off cable) the electric power to power devices on the offshore facility. The tubular member can suspended from the facility or a structural support of the facility. Tubular member can be suspended from a platform or positioned adjacent a vessel depending on the type of facility.
- In some embodiments, the above-identified turbines can be single- and/or multi-stage turbines. In some such above-described embodiments, the turbine so utilized is a unidirectional turbine, wherein such turbines rotate in response to changes in the air volume above the water level, and wherein the turbine rotates in the same direction regardless of whether the volume of air is increasing or decreasing. Examples of such turbines include, but are not limited to, Wells turbines and Savonius turbines. See, for example, Wells, U.S. Pat. No. 4,383,413. Additionally or alternatively, in some or other such embodiments, reciprocating turbines can be employed in lieu of, or in addition to, any unidirectional turbines so utilized.
- In some embodiments, there are a number of power take-off scenarios. Such scenarios include, but are not limited to, (a) turbine direct drive of a generator, connected to battery storage or directly to a busbar load, and (b) turbine direct or electric drive of an air compressor for storage in an accumulator, wherein the air would be discharged on demand to drive either an in-leg turbine or a separate air turbine for rapid power delivery to a bus. It is contemplated that, in some such embodiments, the compressed air from the accumulator will be used to increase the efficiency of combustion turbines on the platforms by boosting the intake air pressure and/or temperature.
- In some such above-described method embodiments, the method is capable of generating electrical power loads in excess of 50 kW. In some or other such embodiments, the method is capable of generating electrical power loads in excess of 100 kW.
- Systems are generally consistent with implementing the methods described above via a functional infrastructure as described in the passages which follow.
- As mentioned previously herein, in some embodiments the present invention is directed to a system for producing power from wave energy for use on an offshore facility. With reference to
FIG. 2 , such system systems and assemblies (200) can comprise the following components: an offshore facility having asupport structure 201, wherein saidsupport structure 201 comprises a columnar volume with acommon opening 211 atwater level 213; anoscillating water column 203 within the columnar volume of thesupport structure 201, theoscillating water column 203 having an oscillating water level, the water level in said column being raised and lowered by wave-induced flow of water into and out of thecommon opening 211; a variable volume of air above the water level; aturbine 205 housed in the columnar volume of thesupport structure 201 above the water level and variable volume of air, wherein theturbine 205 rotates in response to changes in the air volume above the water level; a rotating alternator 209 (or other similar device) driven by the turbine via a shaft; anair opening 207 located above the turbine; and a power take-off cable 215 connected to the rotating alternator on one end, and one or more electrical devices on another end. - In some such above-described system embodiments, one or more turbines can be positioned in one or more legs of the offshore oil/gas platform. In some such embodiments, the leg is modified with an external plenum, thereby increasing flow volume to the turbine inside and/or outside of the leg.
- As mentioned previously herein, in some embodiments the present invention is directed to a system for producing power from wave energy for use on an offshore facility. With reference to
FIG. 3 , such system systems andassemblies 300 can comprise the following components: an offshore facility having atubular member 302, wherein saidtubular member 302 comprises a columnar volume with acommon opening 311 atwater level 313; anoscillating water column 303 within the columnar volume of thetubular member 302, theoscillating water column 303 having an oscillating water level, the water level in said column being raised and lowered by wave-induced flow of water into and out of thecommon opening 311; a variable volume of air above the water level; aturbine 205 housed in the columnar volume oftubular member 302 above the water level and variable volume of air, whereinturbine 305 rotates in response to changes in the air volume above the water level; a rotating alternator 309 (or other similar device) driven by the turbine via a shaft; anair opening 307 located above the turbine; and a power take-off cable 315 connected to the rotating alternator on one end, and one or more electrical devices on another end. - In some such above-described system embodiments, one or more turbines can be positioned in one or more
tubular members 302 associated with theoffshore facility 11. - In some such above-described system embodiments, one or more turbines can be positioned on the deck of the offshore facility. In some such embodiments, each leg or support structure (of the platform) is coupled to a turbine, with or without leg modifications to create external plenums. In some or other such embodiments, two or more legs or support structures are coupled to a common air manifold.
- While the type and size of existing offshore facilities will likely place restrictions on the size and number of OWC/hydro-air turbine power generation systems, it is contemplated that future such facilities could be developed to better incorporate this technology into the overall power generation scheme for the offshore facility.
- The methods and systems described above are easily adaptable for a variety of circumstances. For example, if a plurality of such turbines are used, they could be used individually or in series. Also, structural and/or environmental restrictions may direct or otherwise dictate how air is introduced and discharged from the system (vide supra).
- The present invention is directed to methods and systems that use wave energy to drive one or more air turbines associated with an offshore facility, wherein such turbines can generate electrical power for use on the offshore facility and/or adjacent facilities and equipment.
- All patents and publications referenced herein are hereby incorporated by reference to an extent not inconsistent herewith. It will be understood that certain of the above-described structures, functions, and operations of the above-described embodiments are not necessary to practice the present invention and are included in the description simply for completeness of an exemplary embodiment or embodiments. In addition, it will be understood that specific structures, functions, and operations set forth in the above-described referenced patents and publications can be practiced in conjunction with the present invention, but they are not essential to its practice. It is therefore to be understood that the invention may be practiced otherwise than as specifically described without actually departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (19)
1. A method for producing power from wave energy for use on an offshore facility, the method comprising the steps of:
a) positioning a tubular member associated with an offshore facility in communication with the water, the tubular member having an opening for waves from the water to enter in exit the tubular member, the inward/outward flow of water raises and lowers the water level in the tubular member thereby defining an oscillating water column within the tubular member and thereby effecting pressure changes in the air residing above the water in column;
b) utilizing the pressure changes in the air above the oscillating water column to drive a turbine that is coupled with an electric power-generating device so as to generate electric power; and
c) using the electric power to power devices on the offshore facility.
2. The method of claim 1 , wherein the tubular member is suspended from the facility.
3. The method of claim 1 , wherein the tubular member is formed in a structural support of the facility.
4. The method of claim 1 , where:
the facility is an offshore oil platform; and
the tubular member is formed in a structural support of the facility.
5. The method of claim 1 , where:
the facility is an offshore oil platform; and
the tubular member is suspended from the platform.
6. The method of claim 1 , where:
the facility is an offshore oil platform; and
the tubular member connected to a structural support of the platform.
7. The method of claim 1 , where:
the facility is a floating vessel; and
the tubular member is formed in a structural support of the facility.
8. A system for producing power from wave energy for use on an offshore facility, comprising:
an offshore facility having a tubular member positioned adjacent a water level, the tubular member having a columnar volume with an opening at sea level;
an oscillating water column within the columnar volume of the tubular member, the oscillating water column having an oscillating water level, the water level in the column being raised and lowered by wave-induced flow of water into and out of the common opening;
a variable volume of air above the water level;
a turbine housed in the columnar volume of tubular member above the water level and variable volume of air, the turbine rotates in response to changes in the air volume above the water level;
a rotating alternator driven by the turbine;
an air opening located above the turbine; and
a power cable connected to the rotating alternator that communicates electrical power to one or more electrical devices associated with the facility.
9. The system of claim 8 , wherein the tubular member is suspended from the facility.
10. The system of claim 8 , wherein the tubular member is formed in a structural support of the facility.
11. The system of claim 8 , where:
the facility is an offshore oil platform; and
the tubular member is formed in a structural support of the facility.
12. The system of claim 8 , where:
the facility is an offshore oil platform; and
the tubular member is suspended from the platform.
13. The system of claim 8 , where:
the facility is an offshore oil platform; and
the tubular member connected to a structural support of the platform.
14. The system of claim 8 , where:
the facility is a floating vessel; and
the tubular member is formed in a structural support of the facility.
15. The system of claim 8 , wherein a plurality of turbines are housed within the columnar volume of tubular member above the water level and variable volume of air.
16. The system of claim 8 , wherein there are a plurality of tubular members with each tubular member a columnar volume and a turbine housed therein.
17. The system of claim 8 , wherein:
there are a plurality of tubular members with each tubular member a columnar volume; and
there are a plurality of turbines are housed within each of the columnar volumes above the water level.
18. The system of claim 8 , wherein the tubular member further comprises an air opening formed above the turbine.
19. A system for producing power from wave energy for use on an offshore facility, comprising:
a) an offshore facility having a support structure, the support structure having a columnar volume with a first opening at water level;
b) an oscillating water column within the columnar volume of the support structure, the oscillating water column having an oscillating water level, the water level being raised and lowered by wave-induced flow of water into and out of the first opening;
c) a variable volume of air above the water level, the variable volume varying in response to oscillation of the water level;
d) a turbine housed in the columnar volume of the support structure above the water level and variable volume of air, the turbine rotates in response to changes in the variable volume;
e) a rotating alternator driven by the turbine;
f) an air opening located above the turbine; and
g) a power take-off cable connected to the rotating alternator to power or more electrical devices associated with the facility.
Priority Applications (1)
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US13/415,315 US20120263537A1 (en) | 2011-03-11 | 2012-03-08 | Systems, Methods And Assemblies For Supplying Power To An Offshore Facility |
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US201161451649P | 2011-03-11 | 2011-03-11 | |
US201161555325P | 2011-11-03 | 2011-11-03 | |
US13/415,315 US20120263537A1 (en) | 2011-03-11 | 2012-03-08 | Systems, Methods And Assemblies For Supplying Power To An Offshore Facility |
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US13/415,315 Abandoned US20120263537A1 (en) | 2011-03-11 | 2012-03-08 | Systems, Methods And Assemblies For Supplying Power To An Offshore Facility |
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US (1) | US20120263537A1 (en) |
EP (1) | EP2683935A4 (en) |
JP (1) | JP2014507605A (en) |
CN (1) | CN103492708A (en) |
AU (1) | AU2012229397A1 (en) |
BR (1) | BR112013023291A2 (en) |
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US11585313B2 (en) * | 2018-10-04 | 2023-02-21 | Eiric Skaaren | Offshore power system that utilizes pressurized compressed air |
US11608605B1 (en) * | 2022-05-16 | 2023-03-21 | Yona Becher | Offshore ocean renewable energy hydro-turbine unit |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4086775A (en) * | 1977-04-06 | 1978-05-02 | Peterson Jr Charles A | Method and apparatus for generating power by sea wave action |
US4271668A (en) * | 1979-10-17 | 1981-06-09 | Mccormick Michael E | Counter-rotating wave energy conversion turbine |
US4286347A (en) * | 1974-07-22 | 1981-09-01 | Tideland Signal Corporation | Double acting turbine for converting wave energy of water to electrical power |
US4441316A (en) * | 1980-12-01 | 1984-04-10 | The Secretary Of State For Energy In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Wave energy device |
US4858434A (en) * | 1982-10-15 | 1989-08-22 | Kohichi Nishikawa | Wave-activated power generator |
US5005357A (en) * | 1990-07-09 | 1991-04-09 | Fox Mansel F | Oscillating force turbine |
US5374850A (en) * | 1993-09-29 | 1994-12-20 | Cowen; Hal C. | Apparatus and method for tidal and wave generation of power |
US5770893A (en) * | 1994-04-08 | 1998-06-23 | Youlton; Rodney Graham | Wave energy device |
US6194791B1 (en) * | 1996-06-10 | 2001-02-27 | Applied Research & Technology Ltd. | Wave energy converter |
US20050207844A1 (en) * | 2002-06-28 | 2005-09-22 | Paolo Boccotti | Oscillating water column wave energy converter incorporated into caisson breakwater |
GB2449620A (en) * | 2005-08-11 | 2008-12-03 | Dominic Michaelis | Using existing oil and gas drilling platforms for the conversion of renewable energy sources |
US20110012357A1 (en) * | 2009-07-15 | 2011-01-20 | Hong Fu Jin Precision Industry(Shenzhen) Co., Ltd. | Tidal power generator |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58220973A (en) * | 1982-06-17 | 1983-12-22 | Mitsubishi Electric Corp | Turbine device rotating in the same direction in shuttle flow |
JPS6241974A (en) * | 1984-11-30 | 1987-02-23 | Koichi Nishikawa | Wave-power generating set |
GB2325964A (en) * | 1997-06-05 | 1998-12-09 | Rodney Graham Youlton | Wave energy device |
CN2483520Y (en) * | 2001-07-05 | 2002-03-27 | 蔡国民 | Wave energy type power generator with double nozzle air turbine |
KR101015204B1 (en) * | 2006-05-30 | 2011-02-18 | 넥스탑 주식회사 | An air compressor using wave-force |
DE102009024276B4 (en) * | 2009-06-05 | 2015-09-10 | Rencon Gmbh | Wave power plant according to the principle of the oscillating water column |
-
2012
- 2012-03-08 WO PCT/US2012/028214 patent/WO2012125393A2/en active Application Filing
- 2012-03-08 BR BR112013023291A patent/BR112013023291A2/en not_active IP Right Cessation
- 2012-03-08 CA CA2829596A patent/CA2829596A1/en not_active Abandoned
- 2012-03-08 US US13/415,315 patent/US20120263537A1/en not_active Abandoned
- 2012-03-08 AU AU2012229397A patent/AU2012229397A1/en not_active Abandoned
- 2012-03-08 JP JP2013557850A patent/JP2014507605A/en active Pending
- 2012-03-08 EP EP12757649.4A patent/EP2683935A4/en not_active Withdrawn
- 2012-03-08 CN CN201280019853.9A patent/CN103492708A/en active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286347A (en) * | 1974-07-22 | 1981-09-01 | Tideland Signal Corporation | Double acting turbine for converting wave energy of water to electrical power |
US4086775A (en) * | 1977-04-06 | 1978-05-02 | Peterson Jr Charles A | Method and apparatus for generating power by sea wave action |
US4271668A (en) * | 1979-10-17 | 1981-06-09 | Mccormick Michael E | Counter-rotating wave energy conversion turbine |
US4441316A (en) * | 1980-12-01 | 1984-04-10 | The Secretary Of State For Energy In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Wave energy device |
US4858434A (en) * | 1982-10-15 | 1989-08-22 | Kohichi Nishikawa | Wave-activated power generator |
US5005357A (en) * | 1990-07-09 | 1991-04-09 | Fox Mansel F | Oscillating force turbine |
US5374850A (en) * | 1993-09-29 | 1994-12-20 | Cowen; Hal C. | Apparatus and method for tidal and wave generation of power |
US5770893A (en) * | 1994-04-08 | 1998-06-23 | Youlton; Rodney Graham | Wave energy device |
US6194791B1 (en) * | 1996-06-10 | 2001-02-27 | Applied Research & Technology Ltd. | Wave energy converter |
US20050207844A1 (en) * | 2002-06-28 | 2005-09-22 | Paolo Boccotti | Oscillating water column wave energy converter incorporated into caisson breakwater |
GB2449620A (en) * | 2005-08-11 | 2008-12-03 | Dominic Michaelis | Using existing oil and gas drilling platforms for the conversion of renewable energy sources |
US20110012357A1 (en) * | 2009-07-15 | 2011-01-20 | Hong Fu Jin Precision Industry(Shenzhen) Co., Ltd. | Tidal power generator |
Non-Patent Citations (2)
Title |
---|
Grays Harbor Ocean Energy Comany, 2008-2010, http://www.graysharboroceanenergy.com/ * |
U.S. Department of Energy - Energy Efficiency and Renewable Energy Water Power Program, "Company Proposes Ocean Energy Projects in Six States", December 2008, http://www1.eere.energy.gov/water/news_detail.html?news_id=12139 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103939269A (en) * | 2013-01-18 | 2014-07-23 | 王维俊 | Large piston pressurizing type wave energy generation device |
US20160273512A1 (en) * | 2013-10-16 | 2016-09-22 | Oceanlinx Ltd. | Coastal protection and wave energy generation system |
US10161379B2 (en) * | 2013-10-16 | 2018-12-25 | Oceanlinx Ltd. | Coastal protection and wave energy generation system |
CN108899936A (en) * | 2018-08-31 | 2018-11-27 | 广东工业大学 | A kind of wave-activated power generation method based on simulated annealing particle swarm algorithm |
US11585313B2 (en) * | 2018-10-04 | 2023-02-21 | Eiric Skaaren | Offshore power system that utilizes pressurized compressed air |
US11608605B1 (en) * | 2022-05-16 | 2023-03-21 | Yona Becher | Offshore ocean renewable energy hydro-turbine unit |
Also Published As
Publication number | Publication date |
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BR112013023291A2 (en) | 2016-12-20 |
AU2012229397A1 (en) | 2013-09-26 |
WO2012125393A3 (en) | 2012-11-22 |
JP2014507605A (en) | 2014-03-27 |
EP2683935A4 (en) | 2014-12-03 |
CA2829596A1 (en) | 2012-09-20 |
WO2012125393A2 (en) | 2012-09-20 |
EP2683935A2 (en) | 2014-01-15 |
CN103492708A (en) | 2014-01-01 |
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