GB2498638A - Device for generating electrical energy from water wave energy - Google Patents
Device for generating electrical energy from water wave energy Download PDFInfo
- Publication number
- GB2498638A GB2498638A GB1222933.2A GB201222933A GB2498638A GB 2498638 A GB2498638 A GB 2498638A GB 201222933 A GB201222933 A GB 201222933A GB 2498638 A GB2498638 A GB 2498638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- text
- generator
- energy
- upward
- accordance
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
- F03B13/1885—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 tied to the rem
-
- 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
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
The invention relates to a device for generating electrical energy from water wave energy using in particular the water wave energy of lakes or reservoirs, as well as in the open sea or river estuaries, by means of which movements of ships or boats caused by waves can be used to generate energy without having to install separate facilities for this purpose. This is done by the ship (1) being connected to a counterweight (6, 10) via at least one cable (5, 5'), and by the cable (5, 5') partially looping around at least one guide roller, which is caused to rotate in the same direction as a consequence of the upward and downward movement.
Description
Device for generating electrical energy from water wave energy Thc invention relates to a dcvicc for gencrating clectrical cnergy from water wave cnergy using in particular the water wave energy of lakes or reservoirs, as well as in the open sea or on rivers.
Water waves contain both kinetic energy of wave movement arid potential energy from pressure differences between the wave crest and the wave trough, and a variety of attempts have already been made to use this energy to generate electrical energy e.g. by means of float systems through the relative movement between solid bodies, or devices following the principle of an oscillating water colunm (creation of a pocket of trapped air, as e.g. described in DE-C-433 1988 or DE-C-4345270).
DE-C-43241 10 proposes an underwater turbine for coastal areas positioned underneath a horizontal slab at an immersion depth that is approximately 1/3 of the water depth influenced by the waves. In this system the wave energy present near the surface is diverted underneath the slab into the pulsafing flow.
With a device according to DEOS 2756434 a lever device is envisaged for the conversion of the upward and downward movement of floating structures into propulsive power, whereby the floating structures and the lever device are connected in such a way that the wave energy is convened into mechanical energy of the lever device. To this end, a number of floating structures are arranged in the sea water in a prescribed pattern. The distances of the floating structures from one another are chosen so that a pressure wave in the water, pushed by floating structures, is diverted obliquely and at least partially meets another pressure wave, and floating structures are diverted so as to use the residual energy of the wave. The movement of the floating structures is converted into a driving force for a machine. A similar device is disclosed in US-A-4073 142.
It is also known to use the upward and downward movement of chained buoys (see e.g. US-A- 4599858). The named devices are mostly costly in terms of set-up and maintenance.
The task underlying the invention is therefore to create a device for generating electrical energy from water wave energy that avoids the disadvantages of the previously named prior art and that is also suitable for using small wave movements, as occur particularly in lakes or reservoirs, effectively to generate energy.
The task is solved with the features from Patent Claim 1. A buoyant object is moored with cables and also connected to weights that can move vertically and that reproduce an upward and downward movement caused by the waves and convert this by means of a roller guide into a rotary movement. In the process the rotor of a generator is turned in the same direction and thus generates electrical energy which is subsequently converted.
Preferred embodiments are disclosed in the dependent patent claims. For example, the object, in addition to special objects, is preferably a ship or a boat of any size, whereby even small waves can be used that generate upward and downward niovenients (tilting and/or leaning movements) of at least 5- 10cm of the ship or boat. Preferably the ship or boat in the harbour or beach area of a lake is moored to a post which, in combination with cable drive, enables multiplication of the ship movement.
In addition, generator pulleys and/or generator wheels can be equipped with a fitewhecl and/or counterweights can be replaced by a spring-mounted idler pulley.
In addition, the buoyant object may be connected to the device via a single eye.
The ship is lifted lengthways and/or crossways to it by the waves and then falls again as a result of gravity. By means of the cable mechanisms a relative movement is created which drives the generator.
As the case may be, the generator may be positioned on the ship itself Idler pulleys may be spring-mounted in order to evcn out forces (evening out of tension).
At greater water depths a buoy to be anchored to the lake bed may also be a basis for the roller guide, whereby such an arrangement can then, in accident scenarios, also be used as an emergency generator.
The momentum generated as a result of the wave movement is used for a longer movement, iii particular with larger moved masses.
Thus the requisite moorings and wave-induced movement of ships or boats are used for energy generation without having to set up separate facilities for this purpose.
Nevertheless, embodiments with objects specially created for the purpose are also possible, e.g. objects that are moved against/with one another and/or on a post upwards and downwards.
Preferably the energy generated serves to supply a ship and/or docks with their owi energy.
The invention is described in more detail below in an example of embodiment with the aid of a drawing. The drawing shows by means of a diagram a schematic representation of the device for the generation of electrical energy from water wave energy.
A ship 1 located in the harbour area of a lake 2 is moored using cables 5, 5' to a post 4, which is anchored to the lake bed 4. There is the possibility of having an additional safety mooring.
The cable 5 is led from the anchorage point on the deck of the ship 1 via a generator pulley 7 at the top of the post 4 and further to a counterweight 6. A second cable 5' is led from an anchorage point beneath the deck around a idler pulley 8 located below this and on the post to a further generator pulley 9 on the top of the post and further to a second counterweight 10. The generator pulleys 7, 9 are arranged on the rotor shafts of generators that are not explicitly depicted.
If the ship 1 is lifted by waves (5-10cm is sufficient) the counterweight 6 falls and as a result of the cable friction on the generator pulley 7 the rotor shaft of a generator is turned. At the same time, the counterweight 10 is lifted by the pull of the cable 5' and thus drives the other generator pulley 9. If the ship 1 subsequently falls, then reverse movements of the counterweights 6, 10 and generator pulleys 7, 9 are produced. In addition, the generator pulleys 7, 9 could also be equipped with a freewheel. At the same time, therefore, upward and downward movements and the relevant opposite niovements are converted into rotary movements. The electrical energy thus generated is subsequently converted as required.
As a supplement to or in place of the counterweights, a spring-mounted idler pulley 11 may also be provided. This idler pulley 11 as well as idler pulley 8 may in addition be spring-mounted.
List of reference numerals 1. Ship 2. Lake 3. Lake bed 4. Post 5. Cable 6. Weight 7. Generator pulley S. Idler pullcy 9. Generator pulley 10. Counterweight 11. Id 1cr pulley
Claims (1)
- <claim-text>Patent claims 1. Device for generating electrical energy from water wave energy using in particular the water wave energy from lakes or reservoirs, as well as in the open sea or on rivers, whereby water waves generate an upward and downward movement of a buoyant object, characterised iii that the buoyant object is connected via at least one cable (5, 5') to a counlerweigjn (6, 10) and that the cable (5, 5') partially loops around at least one idler pulley and as a result of the upward and downward movement of the object causes (he idler pulley to rotale in the sante direction.</claim-text> <claim-text>2. Device in accordance with Claim I, characterised in that at least one idler pulley is a generator pulley (7, 9) and is positioned above the object, whereby preferably two generator pulleys are provided.</claim-text> <claim-text>3. Device in accordance with Claim 1 or 2, characterised in that the idler pulley is part of a generator and is provided at the top of a vertical post (4) or similar.</claim-text> <claim-text>4. Device in accordance with at least one of Claims I to 3. characterised in that the object is a boat or ship (I) and that, for the simultaneous use of upward and downward movement or movement and countermovenieitt, an associated cable (5, 5') and a counterweight (6, 10) are provided for each generator pulley (7, 9).</claim-text> <claim-text>5. Device in accordance with at least one of Claims 1 to 4, characterised in that each generator shaft (7, 9) as a result of conversion of the linear upward and downward movement, a rotary relative movcnienl itt a constant direction develops.</claim-text> <claim-text>6. Device in accordance with at least one of Claims I to 5. characterised in that the generator pulleys (7, 9) are provided with a frcewheel andlor in place of counterweights (6, 10) spring-mounted idler pulleys (8, 11) are provided.</claim-text>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00588/10A CH703024B1 (en) | 2010-04-23 | 2010-04-23 | Means for generating electric power from wave energy. |
PCT/CH2011/000087 WO2011130864A2 (en) | 2010-04-23 | 2011-04-20 | Device for generating electrical energy from water wave energy |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201222933D0 GB201222933D0 (en) | 2013-01-30 |
GB2498638A true GB2498638A (en) | 2013-07-24 |
Family
ID=44626679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1222933.2A Withdrawn GB2498638A (en) | 2010-04-23 | 2011-04-20 | Device for generating electrical energy from water wave energy |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH703024B1 (en) |
GB (1) | GB2498638A (en) |
WO (1) | WO2011130864A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103867379A (en) * | 2014-03-06 | 2014-06-18 | 天津大学 | Cable slack preventing float-type wave energy power generation system |
CN107387291A (en) * | 2017-09-19 | 2017-11-24 | 浙江海洋大学 | A kind of marine power generation device peculiar to vessel |
WO2018127738A1 (en) * | 2017-01-09 | 2018-07-12 | Ghalichian Mohammad | Device and method for generating electricity from sea waves by gear and flotation |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3007083A1 (en) * | 2013-06-12 | 2014-12-19 | Jean Jacques Loury | Tidal Energy Recovery System Using Floating Harbor Structures |
CH712566B1 (en) | 2016-06-09 | 2020-12-30 | Hasan Hueseyin Isik | Work facility. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB152484A (en) * | 1919-09-06 | 1920-10-21 | Edward Joachim Hansen | Improvements in or relating to plant for utilising wave power |
DE806240C (en) * | 1949-10-30 | 1951-06-11 | Wilhelm Voss | Swell engine |
DE20312348U1 (en) * | 2003-08-12 | 2004-04-01 | Suthoff, Burkhard, Prof. Dr.Dr. | Method for generating energy from wave motion with an anchored boat and a mechanical drive from an anchor chain |
JP2005127136A (en) * | 2002-10-21 | 2005-05-19 | Tomochika Matsumoto | Energy conversion method for taking out as rotary movement by vertical movement of float on liquid surface |
JP2008180086A (en) * | 2005-03-31 | 2008-08-07 | Yamaguchi Univ | Wave power energy converter |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2756434A1 (en) | 1973-12-26 | 1979-06-21 | Michael G Tornabene | Water wave energy utilisation system - has floats arranged in pattern deflecting waves obliquely onto each other |
US4073142A (en) | 1975-04-11 | 1978-02-14 | Tornabene Michael G | Wave-action power apparatus |
US4599858A (en) | 1977-10-25 | 1986-07-15 | Stella Joseph P | Ocean wave energy device |
DE4324110C2 (en) | 1993-07-19 | 1996-08-01 | Graw Kai Uwe Dr Ing | Device for generating electrical energy from water wave energy |
DE4345270C2 (en) | 1993-09-21 | 1996-02-01 | Graw Kai Uwe Dr Ing | Device for generating electrical energy from water wave energy |
DE4331988C2 (en) | 1993-09-21 | 1995-09-21 | Graw Kai Uwe Dr Ing | Device for generating electrical energy from water wave energy |
-
2010
- 2010-04-23 CH CH00588/10A patent/CH703024B1/en not_active IP Right Cessation
-
2011
- 2011-04-20 WO PCT/CH2011/000087 patent/WO2011130864A2/en active Application Filing
- 2011-04-20 GB GB1222933.2A patent/GB2498638A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB152484A (en) * | 1919-09-06 | 1920-10-21 | Edward Joachim Hansen | Improvements in or relating to plant for utilising wave power |
DE806240C (en) * | 1949-10-30 | 1951-06-11 | Wilhelm Voss | Swell engine |
JP2005127136A (en) * | 2002-10-21 | 2005-05-19 | Tomochika Matsumoto | Energy conversion method for taking out as rotary movement by vertical movement of float on liquid surface |
DE20312348U1 (en) * | 2003-08-12 | 2004-04-01 | Suthoff, Burkhard, Prof. Dr.Dr. | Method for generating energy from wave motion with an anchored boat and a mechanical drive from an anchor chain |
JP2008180086A (en) * | 2005-03-31 | 2008-08-07 | Yamaguchi Univ | Wave power energy converter |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103867379A (en) * | 2014-03-06 | 2014-06-18 | 天津大学 | Cable slack preventing float-type wave energy power generation system |
WO2018127738A1 (en) * | 2017-01-09 | 2018-07-12 | Ghalichian Mohammad | Device and method for generating electricity from sea waves by gear and flotation |
CN107387291A (en) * | 2017-09-19 | 2017-11-24 | 浙江海洋大学 | A kind of marine power generation device peculiar to vessel |
Also Published As
Publication number | Publication date |
---|---|
CH703024A2 (en) | 2011-10-31 |
WO2011130864A3 (en) | 2012-04-19 |
CH703024B1 (en) | 2015-04-30 |
WO2011130864A2 (en) | 2011-10-27 |
GB201222933D0 (en) | 2013-01-30 |
WO2011130864A4 (en) | 2012-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |