JP5738269B2 - ベンチュリピンホイールおよび海錨波エネルギー変換システム - Google Patents
ベンチュリピンホイールおよび海錨波エネルギー変換システム Download PDFInfo
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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
- F03B13/16—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1805—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
- F03B13/1825—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for 360° rotation
- F03B13/183—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for 360° rotation of a turbine-like wom
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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
- F03B13/16—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/20—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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
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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
- F03B13/22—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 using the flow of water resulting from wave movements to drive a motor or turbine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
- B63J3/04—Driving of auxiliaries from power plant other than propulsion power plant
- B63J2003/046—Driving of auxiliaries from power plant other than propulsion power plant using wind or water driven turbines or impellers for power generation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
- B63J3/04—Driving of auxiliaries from power plant other than propulsion power plant
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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
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
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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
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- F05B2250/00—Geometry
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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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Description
当該出願は、「Venturi,Chambered Venturi and Sea−Anchor Wave Energy Conversion Systems」と題する2008年2月22日に当発明者によって出願された仮特許出願の本出願である。
本発明は、一般に、海洋およびその他の水域に存在する豊富な自然エネルギーを電気分解によって水から水素の発生などの電気または化学エネルギーに変換する波エネルギー変換装置に関する。
移動する水または高圧水から有用なエネルギーを取り出すために水力タービンが、何千年もの間、使用されている。様々な環境下で水からエネルギーを取り出すために過去において多くの異なるタイプの水力タービンが発明されて使用されており、たとえば、フランシスタービン、ペルトンタービン、カプランタービンなど、最適な効率を有する様々な特性によって特徴付けられている。
電力=kAv3
であるので、簡単なタービンによって流水から多量のエネルギーを取り出すことは困難であろう。
□x(x,y,t)=rekysin(□t−kx)+x
□y(x,y,t)=rekycos(□t−kx)
プロジェクト:EPRI北米潮流内潮汐電力実現可能性実証プロジェクト
フェーズ:1−プロジェクト定義検討
報告書:EPRI−TP−001 NA Rev3
著者:George HagermanおよびBrian Polagye
共著者:Roger BedardおよびMirko Previsic
日付:2006年9月29日
8ページ(PDFファイルの11ページ目)参照
http://www.epri.com/oceanenergy/attachments/streamenergy/reports/TP-001 REV 3 BP 091306.pdf
http://en.wikipedia.org/wiki/Venturi effect
簡単に言うと、
(質量速度)1=(質量速度)2
ここで、
質量速度=密度×面積×速度
この式は以下のように要約される。
ρ1A1V1=ρ2A2V2
流体は非圧縮性であると考えられるので、ρは一定であり、式[00050]は次式のように要約される。
A1V1=A2V2
式[00052]を再整理することによって、次式が得られる。
V2=(A1/A2)V1
http://www.centennialofflight.gov/essay/Theories of Flight/Conservation/TH8.htm
V2=[(□D2/4)/(□D22/4)]V=(D2/D22)V
しかしながら、図2Cのベンチュリ管はその周りにもその中にも水を必ず流すことができるので、V2は次式に等しくなる。
V2=f(V)[(□D2/4)/(□D22/4)]V=f(V)(D2/D22)V
ここで、「f(V)」はベンチュリ管の特性関数である。
電力(P2)=hA2(f(V)V2)3=h(□D22/4)[f(V)(D2/D22)V]3=f(v)3h(□D6)/(4D24)V3
電力(P)=kA2V3=k(□D2/4)V3=k(□D2/4)V3
P2/P=電力(P2)=f(V)3h(□D6)/(4D24)V3
電力(P)=k(□D2/4)V3
P2/P=0.125D4/D24
http://hyperphysics.phy-astr.gsu.edu/hbase/waves/watwav2.htmlを参照されたい。
また、http://users.dickinson.edu/~richesod/waves/applets.htmlにおいて「深海波(deep water waves)」を参照されたい。
Claims (21)
- 波エネルギーを電気または化学エネルギーに変換する装置であって、
水域の水面に浮くように構成されたブイと、
ベンチュリ管であって、前記ベンチュリ管は水が流れるベンチュリ流路を備え、
前記ベンチュリ流路は上方の口、下方の口及び前記上方の口と下方の口の間の狭窄したベンチュリ効果領域を含み、
前記ベンチュリ管は装置が水域中に配置するとき前記ベンチュリ管が前記ブイの下方に、水域の波浪作用限界水深の付近又はその下部の水域の水面下で距離を置いて位置し、
前記ベンチュリ管は、前記ブイが水域中で波の運動によって上方に移動するとき、前記ベンチュリ流路内部の水は前記上方の口から遠ざかり、狭窄領域を通って前記下方の口へと流れ、
前記ブイが水域中で波の運動によって下方に移動するとき、前記ベンチュリ流路内部の水は、前記下方の口から遠ざかり、狭窄領域を通って前記上方の口へと流れるように前記ブイに連結され、
前記狭窄領域は前記上方の口又は下方の口のいずれか1つの断面領域の1/4以下である断面領域を備え、これにより前記上方の口又は下方の口のいずれか1つから流入する水の水速の4倍もの速度を得るように前記狭窄領域を通って水が流れ、
前記ベンチュリ流路内のタービンと、
前記上方の口から上方に向かって延びる第1の延長部と、前記下方の口から下方に向かって延びる第2の延長部のうちのいずれか少なくとも1つを含む装置。 - 前記ベンチュリ管が前記ブイに剛体的に結合され、それぞれの間隔を固定の距離で保つことを特徴とする請求項1に記載の装置。
- 前記ベンチュリ管は砂時計状の内部ベンチュリ表面と前記ベンチュリ表面を包囲するケーシングとを含み、前記ケーシングは前記第1及び第2の延長部で切れ目のない円筒を定めることを特徴とする請求項1に記載の装置。
- 前記ベンチュリ管と前記ブイとの間の連結は少なくとも1つのケーブルを含むことを特徴とする請求項1に記載の装置。
- 可撓性のアセンブリは、前記ベンチュリ管の縦軸が前記ブイの縦軸と同軸とならないように前記ベンチュリ管を前記ブイに連結することを特徴とする請求項1に記載の装置。
- 前記ベンチュリ流路に流入する水の圧力を増加させる、又は前記ベンチュリ流路にある水の圧力を減少させるように、前記少なくとも1つの延長部は、前記少なくとも1つの延長部内の水の加速から生ずるエネルギーを導くように構成されていることを特徴とする請求項1に記載の装置。
- 前記装置は前記第1延長部と前記第2延長部を含むことを特徴とする請求項1に記載の装置。
- 前記装置はさらに前記第1延長部に隣接する上端と、前記第2延長部に隣接する下端とを備えるケーシングを含むことを特徴とする請求項7に記載の装置。
- 管類は前記第1延長部、前記第2延長部、及び前記ベンチュリ流路のためのケーシングを含むことを特徴とする請求項7に記載の装置。
- 前記少なくとも1つの延長部の縦軸は前記ベンチュリ流路の縦軸と一致することを特徴とする請求項1に記載の装置。
- 前記少なくとも1つの延長部は円筒状であることを特徴とする請求項1に記載の装置。
- 前記少なくとも1つの延長部は管を備えることを特徴とする請求項1に記載の装置。
- 前記タービンが操作可能に連結された発電機をさらに備えることを特徴とする請求項1に記載の装置。
- 前記発電機が前記ベンチュリ管に配置されることを特徴とする請求項13に記載の装置。
- 前記発電機が前記ブイに配置されることを特徴とする請求項13に記載の装置。
- 前記タービンと前記発電機との間のコネクタは可撓シャフトを含むことを特徴とする請求項13に記載の装置。
- 前記タービンと前記発電機の間のコネクタは剛性シャフトを含むことを特徴とする請求項13に記載の装置。
- 前記タービンは狭窄領域に位置することを特徴とする請求項1に記載の装置。
- 前記狭窄領域は前記ベンチュリ管の円筒部分であることを特徴とする請求項1に記載の装置。
- 前記タービンは垂直軸タービンであることを特徴とする請求項1に記載の装置。
- 前記ベンチュリ管は前記ブイの下部において中央に配置されることを特徴とする請求項1に記載の装置。
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PCT/US2009/038581 WO2010110799A1 (en) | 2009-03-27 | 2009-03-27 | Venturi pinwheel and sea anchor wave energy conversion systems |
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JP2015085696A Division JP6061980B2 (ja) | 2015-04-20 | 2015-04-20 | 波エネルギー装置 |
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CA (1) | CA2756446C (ja) |
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WO2012131705A2 (en) * | 2011-03-28 | 2012-10-04 | Verma Ashutosh Santram | A device for generating electrical energy using ocean waves |
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- 2009-03-27 AU AU2009343135A patent/AU2009343135B2/en active Active
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WO2010110799A1 (en) | 2010-09-30 |
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EP3239518A1 (en) | 2017-11-01 |
EP3239518B1 (en) | 2020-02-12 |
CA2756446C (en) | 2020-12-29 |
JP2012522163A (ja) | 2012-09-20 |
EP2411662A4 (en) | 2014-07-09 |
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AU2009343135A1 (en) | 2011-10-13 |
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