WO1997037122A1 - Sea waves energy converter - Google Patents

Sea waves energy converter Download PDF

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Publication number
WO1997037122A1
WO1997037122A1 PCT/NL1996/000134 NL9600134W WO9737122A1 WO 1997037122 A1 WO1997037122 A1 WO 1997037122A1 NL 9600134 W NL9600134 W NL 9600134W WO 9737122 A1 WO9737122 A1 WO 9737122A1
Authority
WO
WIPO (PCT)
Prior art keywords
plant
air
power
way
electricity
Prior art date
Application number
PCT/NL1996/000134
Other languages
French (fr)
Inventor
Hendrik Lenten
Arie Pieter Van Den Berg
Original Assignee
A.P. Van Den Berg Beheer B.V.
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 to NL9500417 priority Critical
Application filed by A.P. Van Den Berg Beheer B.V. filed Critical A.P. Van Den Berg Beheer B.V.
Publication of WO1997037122A1 publication Critical patent/WO1997037122A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations 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
    • F03B13/14Adaptations 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
    • F03B13/148Adaptations 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 static pressure increase due to the wave
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations 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
    • F03B13/14Adaptations 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
    • F03B13/141Adaptations 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
    • F03B13/142Adaptations 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
    • Y02E10/32
    • Y02E10/38

Abstract

The invention relates to an ocean roll power station with bell-like shaped hollow bodies (2) upside down just above the bottom of the ocean. The vertical movements of the water mass in the oceans, especially when bounded on steep rising shores, become captured over a relatively large diameter. The rising water mass pressurizes the trapped air (3) above the inside water level and when falling causes expansion, in this way keeping the air continuously in motion. A rectifying circuit (21) provides for one-way flow through a pneumatic motor, directly coupled to an electric generator.

Description

SEA WAVES ENERGY CONVERTER

Utilizing the potential energy stored in oceanic rolls by conversion into electric power by means of vertical moving vessels, whether or not completely submerged, can be taken for granted. However: the disadventage of such systems being in the way to put into practice can be described as complexity of conversion from kinetic energy into electric power, combined with relative low efficiency.

With the oceanic roll power plant according to the invention, said difficulties becomes obviated, using the roll directly for respectively pressurizing and expanding the trapped air above the liquid level inside the upside-down anchered bells .

The completely submerged bells do have different elevations with regard to the bottom of the ocean, so pressure fluctuations becomes reduced to a minimum and in case of sufficient number equally interpolated even nearly eliminated. Mutual communicating of the bells will be facilitated via a common circuit equiped with a valve system intended to allow just an one-way air flow through a pneumatic motor, directly coupled to an electric generator, in this way conversing the roll energy into electric power which can be transported to the shore by means of loss-free cables.

Although installations as described above are specificly adapted for use in coastal waters bounded on oceans and in the vicinity of thinly inhabited areas, a cluster of such ins allations can be applicable for larger agglomerations as well.

The simplicity of the roll power plant according to the invention makes it possible to win durable energy from the eternal vertical movements of the oceans, especially for the benefit of coastal areas but also for inland agglomerations, in many cases being competiting with nuclear and fuel powerstations . Positive environmental aspects - no water, air nor horizon pollution! - makes the equipment extremely attractive.

Although several pneumatic motors are applicable for the generating system according to the invention, the so called "Roots Blower" - consisting of two in cross sectional view 8-shaped elements ( each element itself unrolling on the other) - in particular. By means of suchlike pumps the kinetic energy accumulated in the air can be easely conversed into electricity.

Rectifying of the air flow can be realized by a valve arrangement of which each valve allows free passage in just one direction while the automatic remote controle is such as to minimize the time for opening and closing. The bore shall be in accordance with the abovementioned provisions. Essentially the during lowerating in the ocean trapped air inside the vertical interpolated positioned bells is functioning as energy transportating medium. Furthermore no special mecanical means are required for the energy conversion apart from above mentioned items. Accumulating roll energy by means of respectively pressurizing and expanding the trapped air inside the bells and proceedingly supplying to a closed pneumatic system can be designated as essential also.

Rectifying the air flow before allowing it to enter the inlet nozzle of the pneumatic motor belongs to the nature of the invention as well. The invention shall be explained on the basis of the drawing: The roll 1 induces an enlarged hydrostatic pressure inside the bell-like shaped hollow body 2, further referred to as "the bell", resulting in compression of the trapped air inside compression chamber 3 on top of the lifted water column A. The air in tubes 5, pressurized in this way, reaches(via the route as indicated by the arrows) the pneumatic motor 6 and the two 8-shaped bodies 7 becomes immediately rotating inside the house 8. The air leaves the house 8 and continues its way to space 9 wherein respectively the hydrostatic pressure and the air pressure became reduced because of the amplitude 11. Inside bell 10(which can be even much lower positioned!) - assumed this bell finds itself on that specific moment just below wave dale 11 - does have a decompression because of the lower night of the water column 12, related to water column . The air flow between compartments 3 and 9 became realized and remains maintained as long as the pressure difference exist. It will be clear that during the transmission roll 1 find itself above bell 10. From that moment the cycle as described above will be reversed, however without changing the direction of the air flow through the pneumatic motor 6, controlled by the one-way valve system 21 , eventually diafragma valves because of their very short opening and closing time.

The pressurized air flows via ports 13 and 14 through the pneumatic motor 6 in just one direction The bells 2 and 10 are anchered to the bottom of the ocean 15 by means of piles 16 or otherwise, at least such as to withstand the force of the rolls 1 and 11, forcing the bells 2 and 10 to maintain the original position with regard to the ocean bottom 15.

The in tandem on the main shaft 17 mounted generator 18 delivers its energy to the distribution station 19 on shore 20, via conductor 22.

Claims

C L A I M S
1. Power-plant, utilizing the potential energy from oceanic rolls for direct conversion into electricity, c h a r a c t e r i z e d i n t h a t the eternal vertical movements of the oceanic water mass partially becomes captured inside a certain number of upside-down bell-like shaped submerged vessels having an air-bubble on top, causing compression of the during sinking down trapped(or later on supplied) amount of air when rising and rarefying if lowerated, while the pressure differences keep the air moving inside a pneumatic circuit, in such a way that a rectifying valve system takes care for one-way air flow through a pneumatic motor, directly driving a generator, preferably on the main shaft of the pneumatic motor which consists of two 8-like shaped bodies having an opposite rotating direction, better known as "Roots Blower", mounted in the same housing and unrolling on each other, in this way producing electric energy which can be supplied to an on-shore distribution station via the so called super conductors as recently developped.
2. Power-plant according to claim 1 , c h a r a c t e r i z e d i n t h a t more then two bells are functioning as a cluster - either parallel or in a sequence circuit - in such a way that pressure and capacity fluctuations are reduced by means of vertical interpolated positioning of the bells above the bottom of the ocean, facilitating a more constant rotating of the electric generator.
3. Power-plant according to claims 1 and 2, c h a r a c t e r i z e d i n t h a t the pneumatic motors, together with their rectifying circuits and in tandem coupled generators, are mounted on top of the air chamber in order to avoid the necessity of special housing for the apparature.
In this case a wire screen below the apparature's foundation provides for a spatter-free engine room .
4. Power-plant according to claim 1 , two and 3, c h a r a c t e r i z e d i n t h a t several modules as fully described in claim 1 , are assembled to a power-plant to provide for electricity for larger agglomerations and densely populated coastal areas as well, while the electricity can be transported inlands by means of super conductors.
PCT/NL1996/000134 1995-03-02 1996-03-29 Sea waves energy converter WO1997037122A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL9500417 1995-03-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU51252/96A AU5125296A (en) 1995-03-02 1996-03-29 Sea waves energy converter

Publications (1)

Publication Number Publication Date
WO1997037122A1 true WO1997037122A1 (en) 1997-10-09

Family

ID=19865667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1996/000134 WO1997037122A1 (en) 1995-03-02 1996-03-29 Sea waves energy converter

Country Status (2)

Country Link
AU (1) AU5125296A (en)
WO (1) WO1997037122A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006076756A1 (en) * 2005-01-24 2006-07-27 Robinson Barry Wave energy extraction system
WO2007148952A1 (en) * 2006-06-21 2007-12-27 Rodriguez Macedo Julio Cesar Apparatus for converting sea wave energy into mechanical energy
WO2009130670A2 (en) 2008-04-22 2009-10-29 Luigi Carmelo Rubino Apparatus for producing energy from wave motion
DE102009013014A1 (en) * 2009-03-16 2010-09-30 Kolja Fricke Wave power system for driving e.g. air turbine, has supply line connected with main line in region between end and fluid energy system, and discharge line connected with main line in region between fluid energy system and another end
CN101251079B (en) * 2008-03-05 2013-05-01 陈克敏 Tide wave energy generating system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1455718A (en) * 1921-12-16 1923-05-15 Nelson M Delong Hydropneumatic device
GB2050522A (en) * 1979-04-24 1981-01-07 Vickers Ltd Apparatus for Extracting Energy from Waves
WO1981001174A1 (en) * 1979-10-17 1981-04-30 A Wells Wave energy apparatus
WO1986001259A1 (en) * 1984-08-17 1986-02-27 Wu Jiun Tsong Power generation
EP0213216A1 (en) * 1985-08-15 1987-03-11 Klein, Wilhelm Rotary piston blower
JPH06103838A (en) * 1992-09-21 1994-04-15 Furukawa Electric Co Ltd:The Two-phase coaxial-type superconductive cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1455718A (en) * 1921-12-16 1923-05-15 Nelson M Delong Hydropneumatic device
GB2050522A (en) * 1979-04-24 1981-01-07 Vickers Ltd Apparatus for Extracting Energy from Waves
WO1981001174A1 (en) * 1979-10-17 1981-04-30 A Wells Wave energy apparatus
WO1986001259A1 (en) * 1984-08-17 1986-02-27 Wu Jiun Tsong Power generation
EP0213216A1 (en) * 1985-08-15 1987-03-11 Klein, Wilhelm Rotary piston blower
JPH06103838A (en) * 1992-09-21 1994-04-15 Furukawa Electric Co Ltd:The Two-phase coaxial-type superconductive cable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 369 (E - 1576) 12 July 1994 (1994-07-12) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006076756A1 (en) * 2005-01-24 2006-07-27 Robinson Barry Wave energy extraction system
WO2007148952A1 (en) * 2006-06-21 2007-12-27 Rodriguez Macedo Julio Cesar Apparatus for converting sea wave energy into mechanical energy
CN101251079B (en) * 2008-03-05 2013-05-01 陈克敏 Tide wave energy generating system
WO2009130670A2 (en) 2008-04-22 2009-10-29 Luigi Carmelo Rubino Apparatus for producing energy from wave motion
WO2009130670A3 (en) * 2008-04-22 2010-11-04 Luigi Carmelo Rubino Apparatus for producing energy from wave motion
DE102009013014A1 (en) * 2009-03-16 2010-09-30 Kolja Fricke Wave power system for driving e.g. air turbine, has supply line connected with main line in region between end and fluid energy system, and discharge line connected with main line in region between fluid energy system and another end
DE102009013014B4 (en) * 2009-03-16 2012-08-16 Kolja Fricke Wave power plant

Also Published As

Publication number Publication date
AU5125296A (en) 1997-10-22

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