WO2002025107A1 - Convertisseur d'energie fonctionnant avec l'energie ondulatoire - Google Patents

Convertisseur d'energie fonctionnant avec l'energie ondulatoire Download PDF

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Publication number
WO2002025107A1
WO2002025107A1 PCT/GB2001/004179 GB0104179W WO0225107A1 WO 2002025107 A1 WO2002025107 A1 WO 2002025107A1 GB 0104179 W GB0104179 W GB 0104179W WO 0225107 A1 WO0225107 A1 WO 0225107A1
Authority
WO
WIPO (PCT)
Prior art keywords
paddle
wave
skirt
water
rearwardly
Prior art date
Application number
PCT/GB2001/004179
Other languages
English (en)
Inventor
Andrew Hugh Mackay
Original Assignee
Andrew Hugh Mackay
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
Application filed by Andrew Hugh Mackay filed Critical Andrew Hugh Mackay
Priority to AU2001287893A priority Critical patent/AU2001287893A1/en
Publication of WO2002025107A1 publication Critical patent/WO2002025107A1/fr

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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
    • F03B13/16—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
    • F03B13/181—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 limited rotation
    • F03B13/182—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 limited rotation with a to-and-fro movement
    • 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

Definitions

  • Various types of wave powered devices have been proposed for use in driving energy generating means .
  • One type of known device utilised a float means attached to a pump (hydraulic or pneumatic) , wherein, in use, the float rises and falls as waves pass underneath and the rising and falling action of the float drives the pump of the power generating means.
  • Such devices generally require to be located far from the shore and could not be used within the inter-tidal zone of a sea/ocean or other bodies of water where the water level may vary substantially over time. Such remote location makes these devices difficult to maintain and access. Additionally, the devices must be anchored to the seabed and as such may become vulnerable during adverse weather conditions such as during storms and high winds.
  • the flexible skirt depends from the paddle substantially below the forwardly and rearwardly directed wave engagement faces thereof .
  • the paddle generally has a width of at least 50cm, preferably 15 from 50cm to 5 metres, more preferably from 1 metre to 3.5 metres and most preferably from 1.5 metres to 3.5 metres.
  • a mass whose position is adjustable relative to the pivot to allow adjustment of the position of the centre of gravity and thereby the swinging period of the paddle to enable this to be substantially matched to that of various incoming incident wave frequencies .
  • the matching of the swinging period of the paddle to the incident wave frequency has the advantage of providing a more efficient transfer of momentum from the wave to the paddle in use of the device of the present invention.
  • over-centre toggle assist mechanism such as, for example, resilient biasing means formed and arranged for biasing the paddle towards said first and second positions.
  • resilient biasing means formed and arranged for biasing the paddle towards said first and second positions.
  • Such mechanisms are also intended to be encompassed within the scope of the present invention.
  • the wave channelling means preferably takes the form of two laterally spaced apart opposed substantially upright wall means which extend substantially longitudinally and forwardly of the device, wherein said walls are formed and arranged to direct an incoming incident wave therebetween and onto the paddle.
  • the channelling means could be in the form of a standard freight container in which the device is mounted, the end doors facing the direction from which the waves are coming being held open or removed. Such an arrangement has the practical advantage of facilitating transportation of the device to an installation site.
  • the walls desirably are formed and arranged to have a vertical height which is not substantially greater than the pivot of the paddle means .
  • an incident wave has an amplitude substantially greater than the height of the pivot of device
  • movement of the paddle from the first to the second position may be hindered by the wave impinging upon the paddle above the pivot and thereby acting against the desired direction rotation of the paddle from the first position to the second position.
  • the device may also be provided with a longitudinally extending base portion projecting outwardly generally towards a said incoming incident wave.
  • the base portion is sloped upwardly towards the paddle from said outward direction.
  • the base portion may be sloped at an angle of between from 2° and 15° from the horizontal, preferably from 5° and 12° and desirably is sloped at an angle of approximately 8°.
  • the base and the wall means may be combined to form a trough which is formed and arranged to direct a said incident wave onto said paddle wherein, the trough has a distal end open to said incoming incident wave and a proximal end open and adjacent to said paddle.
  • a power generation system comprising a water wave driven device according to the present invention drivingly connected to power generating means by a fluid pump or compressor.
  • a fluid pump or compressor may take the form of a hydraulic fluid or oil pump, or may be a gas pump such as for example an air pump.
  • Air compression has the advantage of easy and convenient storage of potential energy.
  • Other advantages of using a air compression system include greater flexibility by allowing the turbine or other power generation device to be located remote from the wave driven device, for example, at a convenient on-shore location, connected to the device by an umbilical or pipeline, as well as facilitating the coupling of multiple devices together by interconnecting the compressed air pipelines therefrom via suitable manifolds etc.
  • these may themselves have a significant energy storage capacity by means of build up of air pressure in the pipeline until it is required to be released to drive the power generation means e.g. in order to meet a peak demand level.
  • Various forms of natural energy driven device may be used including water wave driven devices of the present invention as well as various other water wave driven devices, and wind driven devices such as windmills and wind turbines, especially wind turbines which directly compress air.
  • Various kinds of pump may be used for compressing gas including positive displacement motors when operated as pumps, gear pumps, reciprocating piston and cylinder type pumps, vane pumps, and swash plate pumps.
  • the compressed gas thus obtained will generally be transferred to a remote turbine via a pipeline, which itself can serve as a substantial reservoir of compressed gas.
  • a pipeline may also be connected to additional compressed gas storage in the form of one or more chambers, which may, for example, be in the form of underground chambers formed in substantially non-porous strata.
  • the system of the invention may be used with any kind of gas, most conveniently the gas medium used is air.
  • the paddle 2 passes through a neutral position where the paddle 2 is neither biased forwardly or rearwardly, towards a second position wherein the paddle 2 is biased by a forward counterweight portion 26b located above and forwardly of the pivot and biases the paddle 2 so that the lowermost edge 22 is directed rearwardly of the device 2 towards the reflector wall 18.
  • each wave channelling wall 34a, b has a distal end 26a,b and a proximal end 38a,b, wherein the distal ends 26a,b are remotely located from the device 1 and the proximal ends 26a, b are located adjacent the device 1 and adjoin upright walls 14 and 12 respectively.
  • the distance between the distal ends 36a and 36b is greater than that between the proximal ends 38a and 38b so that when viewed from above, the wave channelling walls 24a and b have a 'V -shaped configuration, though this is of course not essential.
  • the wave channelling walls 34a and b extend horizontally and forwardly of the device 1 and have a vertical height (not indicated) at substantially the same height as the pivot 10 of the device 1.
  • a crank 1000mm long fitted and keyed onto the main shaft has a connecting rod fitted.
  • This in turn has a piston fitted so that it can travel freely along the guide/cylinder.
  • the piston accelerates along the shaft to a velocity of 20m/s where it starts to compress air. Air is forced through the outlet's non-return valve until the piston passes this point. With the valve closed by the piston the remaining air trapped between 90° and 94° pressurises towards infinity.
  • two forces equalise is created and the direction of the piston's travel is reversed.
  • the flow of the wave has also been reversed, crashes down on the leeward side of the paddle and skirt, and the paddle accelerates back towards its first, forwardly displaced, position.

Landscapes

  • 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 un appareil alimenté par l'énergie ondulatoire (1) adapté pour utiliser l'énergie provenant des vagues. L'appareil comprend un batteur (2) monté de manière pivotante (10) afin de produire un mouvement cyclique autour d'une position neutre, entre une première position, vers l'avant, et une seconde position, vers l'arrière, position influencée par l'action des vagues agissant de faces d'enclenchement (4, 6) dirigées vers l'avant et vers l'arrière. Un réflecteur de vagues (18) est monté à l'opposé de la face dirigée vers l'arrière (6) du batteur (2), afin de réfléchir une vague d'eau incidente (28) passée par le batteur (2) et revenant vers la face d'enclenchement de la vague dirigée vers l'arrière (6). Le batteur (2) est doté d'une jupe souple (24) dépendant du batteur de manière à ce que, au moins, un bord distant (30) soit maintenu en contact avec le fond (15) d'un passage de la vague (16) sortant sous le batteur (2), alors qu'il se déplace entre sa première et sa seconde positions, ainsi la jupe souple (24) capte l'énergie provenant de cette partie de la vague (28, 32) passant au-dessous du batteur (2), afin d'exercer une force de déplacement supplémentaire sur le batteur (2).
PCT/GB2001/004179 2000-09-20 2001-09-20 Convertisseur d'energie fonctionnant avec l'energie ondulatoire WO2002025107A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001287893A AU2001287893A1 (en) 2000-09-20 2001-09-20 Wave powered energy converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0023043.3A GB0023043D0 (en) 2000-09-20 2000-09-20 Wave powered energy generating device
GB0023043.3 2000-09-20

Publications (1)

Publication Number Publication Date
WO2002025107A1 true WO2002025107A1 (fr) 2002-03-28

Family

ID=9899794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004179 WO2002025107A1 (fr) 2000-09-20 2001-09-20 Convertisseur d'energie fonctionnant avec l'energie ondulatoire

Country Status (3)

Country Link
AU (1) AU2001287893A1 (fr)
GB (1) GB0023043D0 (fr)
WO (1) WO2002025107A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010064041A2 (fr) 2008-12-02 2010-06-10 Greenheat Systems Limited Améliorations dans ou relatives à une énergie renouvelable
WO2016079657A1 (fr) * 2014-11-21 2016-05-26 Lowell James Arthur Système de centrale produisant de l'hydroélectricité et de l'air comprimé

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026621A (en) * 1978-03-02 1980-02-06 Sea Energy Associates Ltd Water Power Device
US4332506A (en) * 1980-06-26 1982-06-01 Andrews Ottie H Wave-and-tide-pump apparatus and method thereof
US4441030A (en) * 1981-08-05 1984-04-03 Sea Energy Associates, Limited Energy conversion apparatus
FR2548739A1 (fr) * 1983-07-07 1985-01-11 Liautaud Jean Centrale flottante pour recuperation de l'energie de la houle
US4580400A (en) 1984-08-30 1986-04-08 Muroran Institute Of Technology Method and apparatus for absorbing wave energy and generating electric power by wave force
US4718231A (en) * 1984-02-02 1988-01-12 Vides Max M Assembly for harnessing wave and tide energy
US4782663A (en) * 1985-04-16 1988-11-08 Hydro Energy Associates Limited Pneumatic hydro-electric power conversion system
WO1994015095A1 (fr) * 1992-12-29 1994-07-07 Nelson Sabino Jaque Bustos Generateur a energie marine ii base sur le principe du levier
GB2283265A (en) * 1993-10-29 1995-05-03 Korea Ocean Res Dev Inst Breakwater caisson
DE19647102A1 (de) * 1996-11-14 1998-05-20 Philippe Arribi Strömungskörper

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026621A (en) * 1978-03-02 1980-02-06 Sea Energy Associates Ltd Water Power Device
US4332506A (en) * 1980-06-26 1982-06-01 Andrews Ottie H Wave-and-tide-pump apparatus and method thereof
US4441030A (en) * 1981-08-05 1984-04-03 Sea Energy Associates, Limited Energy conversion apparatus
FR2548739A1 (fr) * 1983-07-07 1985-01-11 Liautaud Jean Centrale flottante pour recuperation de l'energie de la houle
US4718231A (en) * 1984-02-02 1988-01-12 Vides Max M Assembly for harnessing wave and tide energy
US4580400A (en) 1984-08-30 1986-04-08 Muroran Institute Of Technology Method and apparatus for absorbing wave energy and generating electric power by wave force
US4782663A (en) * 1985-04-16 1988-11-08 Hydro Energy Associates Limited Pneumatic hydro-electric power conversion system
WO1994015095A1 (fr) * 1992-12-29 1994-07-07 Nelson Sabino Jaque Bustos Generateur a energie marine ii base sur le principe du levier
GB2283265A (en) * 1993-10-29 1995-05-03 Korea Ocean Res Dev Inst Breakwater caisson
DE19647102A1 (de) * 1996-11-14 1998-05-20 Philippe Arribi Strömungskörper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010064041A2 (fr) 2008-12-02 2010-06-10 Greenheat Systems Limited Améliorations dans ou relatives à une énergie renouvelable
WO2016079657A1 (fr) * 2014-11-21 2016-05-26 Lowell James Arthur Système de centrale produisant de l'hydroélectricité et de l'air comprimé

Also Published As

Publication number Publication date
AU2001287893A1 (en) 2002-04-02
GB0023043D0 (en) 2000-11-01

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