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WO2018147753A1 - Dispositif de conversion de l'énergie des vagues - Google Patents

Dispositif de conversion de l'énergie des vagues Download PDF

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Publication number
WO2018147753A1
WO2018147753A1 PCT/PT2018/000002 PT2018000002W WO2018147753A1 WO 2018147753 A1 WO2018147753 A1 WO 2018147753A1 PT 2018000002 W PT2018000002 W PT 2018000002W WO 2018147753 A1 WO2018147753 A1 WO 2018147753A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
anterior
turbine
cao
wave energy
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.)
Ceased
Application number
PCT/PT2018/000002
Other languages
English (en)
Portuguese (pt)
Inventor
Kourosh REZANEJAD
Carlos Guedes SOARES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidade de Lisboa
Original Assignee
Universidade de Lisboa
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 Universidade de Lisboa filed Critical Universidade de Lisboa
Publication of WO2018147753A1 publication Critical patent/WO2018147753A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F03B13/141—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
    • 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
    • F03B13/24—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 to produce a flow of air, e.g. to drive an air turbine
    • 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
    • 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

  • the present invention relates to a device for the conversion of. wave energy with two columns of oscillating water.
  • the wave power converter (CEO) enables a reduction in the costs of producing electricity, increasing efficiency and decreasing equipment costs when compared to other congeners.
  • renewable energy resources Due to the limitations of fossil renewable energy sources and the fact that their process of producing energy increases environmental pollution, renewable energy resources have been attractive.
  • wave energy is considered to be one of the frontier resources since a large part of the world's energy is concentrated in the oceans.
  • CEOs wave power converters
  • the oscillating water column device (CAO) consists of an open-ended coffin, which is partially immersed in water.
  • the water column inside the chamber has alternating pressure fluctuations due to the incident waves. This flotation moves the air above the inner free surface of the chamber through the turbine, which induces the electric generator to produce electricity.
  • the entire energy recovery unit is usually placed above the chamber and is therefore not in direct contact with the water.
  • CEO devices have so far been devised to act on these bases and, consequently, can be categorized as CAO devices.
  • CAO devices act only as a floating CAO device although they may also be applied in power plants, such as CAO floating devices previously disclosed in GB20080007183, "Oscillating Water-Coal Wave-Energy Device Having a heiicai column "; US2QI00795008, M Wave power plant According to the Principle of the oscillating water column; "WO2011RU00540,” Floating element of the wave station “, DE20101053300,” Construct ion for converting wave energy into current ⁇ n eg ocean, has floaters attached at steel frame, swot-oscillating water column system for driving construct ion, and frames ie steel pipes, weided together ";CN20132442966U,” Offshore oscillating water column power generation device “;GB20140Q12997,” A wave energy converter ".
  • FR19780028577 "Sea wave energy converter - uses hollow floating chambers with open bottons, which purap air to drive turbines "; CA19992286545 - “OWC energy center”; WO2012ES00050 - "Floating structure and installation for using the energy of the waves surge, using a floating catamaran with severea1 oscillating v / ater column chambers”; US20Q50658722 - “Modular near-shore wave-powered energy collection system”; US20070300462 - “Wave energy generator”; DE2009.1008211 - “Wave-driven power station for converting wave energy into usable energy, has openings on its iower side or is open downward, so that the water.
  • the system can absorb almost all the energies of incident waves when the phenomenon of resonance occurs in the chamber. Thus, the system improved the efficiency at this resonant frequency. In the case where the CEO has several resonant frequencies the system has high efficiency values at each of these frequencies (and probably in the frequency ranges between them) which eventually leads to a total increase in the high frequency efficiency of the bandwidth.
  • a specific CAO floating device was invented by Masuda and Toshiari and is disclosed in patent application No. EP19990302807 - "Wave energy absorbing the oscillating water coiumn type", and is referred to as a backward bent conduit (BCET).
  • BCET backward bent conduit
  • the presence of reverse traction force for specific frequency ranges of incident waves that cause the device to move towards the waves is one of the unique advantages of this type of floating CAO device.
  • This negative movement force substantially reduces the anchoring forces.
  • the efficiency of the device is high due to the occurrence of relative movements between the device and the water trapped within. However, the area of incoming waves within the BCET device is located downstream.
  • the meaning for the energy absorption of the waves may be a oscillating water column device, such as those described in the following patent applications: WO1993G3Q2072 - "Combined wind and wave power generator”; US20070311527 - “Wave and wind power generation”; CN2014144 ' 8,186 - “Offshore wind turbine platform combined with oscillating water column type wave energy device”; DE201110.118254 - "Combined off-shore energy plant for producing wind and wind energy to be converted into electric energy, has wind turbine and / or wave turbine mechanically coupled with each other and connected with generator the function of sensor system”; GB2006Q02066S A N Combined water current and wave energy powered installation "; GB20000019235 -” Offshore power generating structure "; DE1995104356
  • the present invention relates to a new wave energy converter with. two columns of oscillating water, the anterior and the posterior, relative to the incident waves.
  • the device, object of the present invention is constituted by:
  • the anterior oscillating water column system located downstream of the waves comprises the following elements: an anterior chamber (1) delimited at the base by a horizontal plate (5), and at the top by a front turbine (9), being is connected to an intermediate partition wall (6) on the right side, and to an anterior flotation module (3) on the left side;
  • the rear oscillating water column system comprising the following elements: a rear chamber (2) delimited at the base by the lower plate (7), and at the top by a. (10) being connected to the intermediate partition wall (6) on the left side, and to a rear flotation module (4) on the right side, which is delimited at the top by a top plate (8).
  • the device may be anchored to the seabed by catenaries or anchor lines with clearance or by combining both.
  • the front flotation module 35, the horizontal plate 5 and the intermediate partition wall 6 are fundamental members of the previous CAO.
  • Each of the CAO of the CEO is intended to absorb the energy of the surface waves with specific wavelength bandwidth ranges Cu, in the frequency ranges where the movements of the device or the water trapped in the interior are magnified (due to the occurrence of resonance), the back will have a dominant role in the absorption In this situation it is anticipated that a reduction in the mooring force due to the negative action force of the wave drift acting on the back device should occur. oscillations are small, the previous CAO must absorb most of the energy from the incident waves.
  • the dimensions of the front chamber 1 and the horizontal plate 5 must be determined so as to impose resonant conditions on the water column within the front chamber 1 which will cause the efficiency of the apparatus to increase. Therefore, the appropriate actions of each part of the new wave energy converter (CEO) give rise to a more efficient frequency band which covers the entire range of frequencies typical of wind and wave waves. In this situation, it is anticipated that the implementation of complicated control tools to establish phase control or other active and reactive approaches can be eliminated by using rate constant speed turbines.
  • CEO new wave energy converter
  • the four resonance mechanisms including resonance of oscillations of the device, the resonance movement of the CAOs inserted inside the anterior chamber (1) and the posterior chamber (2) and, finally, resonance resonance dedicated to the influence that the horizontal plate (5) extending horizontally outwardly from the front chamber (i) provides a highly effective capture width ratio for the device.
  • the present invention relates to a new wave energy converter with two columns of oscillating water, the anterior and posterior, relative to the incident waves.
  • the device, object of the present invention is constituted by:
  • the anterior oscillating water column system located downstream of the waves comprises the following elements: an anterior chamber (1) delimited at the base by a horizontal plate (5), and at the top by a front turbine (9), being is connected to an intermediate partition wall (6) on the right side, and to an anterior flotation module (3) on the left side;
  • the rear oscillating water column system comprising the following elements: a rear chamber (2) delimited at the base by the lower plate (7), and at the top by a rear turbine (10, this latter being connected to the intermediate partition wall ) on the left side and a rear flotation module (4) on the right side, which is delimited at the top by a top plate (8).
  • the front turbine (9) is dedicated to the front oscillating water column system and the rear turbine (10) is dedicated to the rear oscillating water column system, which allows optimizing each turbine for the operating conditions of each system.
  • the device may be anchored to the seabed by catenaries or anchor lines with clearance or by the combination of both.
  • the main criterion in the development of renewable energy devices is the cost of energy production.
  • various techniques such as increasing the efficiency of the apparatus, incorporating CEOs into multiple objective platforms to share the costs of construction and maintenance the various independent parts of the platform, removing more expensive parts of the device by implementing appropriate economical tools, optimizing plate design which eliminates the need to use expensive apparatus for the apparatus, implementing various types of renewable energy instruments in a platform, the implementation of maritime CEOs in wave parks, which reduces the cost of transferring the energy produced, among others.
  • the general concept of the new CEO presented in this invention is illustrated in Figures .1 and 2. It is intended to be applied in the above mentioned techniques and simultaneously in this new CEO.
  • the plane is the combination of the CAO with the border port, which configures the horizontal plate (5), and the subsequent CAO device.
  • the two front (3) and rear (4) float modules of the CAO provide buoyancy of the device and proper mooring lines hold the apparatus in position as shown in Figure 2.
  • the device's anchor cables attach to the anchor (13) and can also be equipped with a flotation module (11) and a ballast module (12) as shown in Figure 2.
  • the prior CAO system includes the following components in Figure 1: front chamber 1, front flotation module 3, lower plate 5, intermediate partition wall 6 and front turbine 9.
  • front chamber 1 front chamber 1
  • front flotation module 3 front flotation module 3
  • lower plate 5 intermediate partition wall 6
  • front turbine 9 front turbine 9.
  • the water columns attached to the front chamber (1) and above the port of the horizontal plate CAO (5) have two different specific resonant frequencies.
  • the previous turbine ⁇ 9 ⁇ with appropriate damping constant can be implemented for the previous CAO system. In this situation the efficiency of the apparatus is maintained at the highest possible values while expensive turbine control instrumentation is eliminated. It should be noted that the previous CAO system will have high efficiency values only when the device movements are very small as demonstrated by Rezanejad and Guedes Soares (Rezanejad, K. and Guedes Soares, C, 2014; Numerical study of a floating (1998), pp. 951-9605, pp. 951-9605, pp. 951-9605, pp. 951-9605, pp. 951-9605, pp.
  • the rear CAO system includes the following elements, as shown in Figure 1: rear chamber (2), rear float module (4), intermediate partition wall (6) which is the connection between the front and rear CAO systems, (7), top plate (8) and rear turbine (10).
  • the posterior CAO has the task of absorbing energy when the movement of the apparatus is considerable and the previous CAO system can not absorb the energy of the waves.
  • two different mechanisms are explored where the anterior system is effective with small float movements and the posterior one is active for larger movements.
  • the posterior CAO is not efficient when the movements of the apparatus are small, as proved by Rezanejad and C. Guedes Soares (Rezanejad, K. & Guedes Soares, C. 2015. Hydrodynamic (1987), Taylor and Francis Group, London, UK, pp. 1287-96).
  • the main aspect of the operating principle of the device is that the movement is small in the resonant frequencies of the previous CAO system absorbs wave energy as an active part while the back does not receive high amounts of energy in this situation.
  • the anterior system does not absorb energy from the waves in an effective way and most of the energy is absorbed by the back.
  • the negative drift force can occur for the pitching resonant frequency apparatus which considerably reduces the mooring loads as demonstrated by Masuda Yoshio & Kuboki Toshiari in the patent application No. EP19990302807 - "Wave energy absorbing of the oscillating water coiumn type ".
  • a rear turbine (10) with the appropriate coefficient of constant damping can be installed in the rear CAO, eliminating the need to use costly control tools without a greater interruption in the amount of energy captured from the waves.
  • FIGS 1 and 2 show the typical plan of the new CEO converter introduced in this invention. How can it be confirmed? through the figures, each one. of the front and rear CAO systems have their own turbines: the front turbine (9) and the rear turbine (10). Thus, the pressure inside the anterior chamber (1) of the CAO and the rear chamber (2) may be different. These pressures have a radiation effect and consequently the hydrodynamic interaction occurs between the chambers, which may be beneficial to implement further improvements in the efficiency of the apparatus by CAO systems with. i-chambers.
  • a failure in the anchor lines is one of the main challenges in the design. Since the new CEO includes a later CAO, it is expected that, at different frequencies, the inverse drift force acts on the structure causing the force to decrease in the anchor lines and prevents the failure of those lines, which is an advantage of this CEO .
  • Figure 1 shows the schematic cross-sectional plane of the new double CAO (first plane) wave energy converter.
  • Figure 2 shows the schematic 3D plane of the new wave energy converter.

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

La présente invention concerne un dispositif de conversion de l'énergie des vagues à deux colonnes d'eau oscillante. La colonne antérieure ou avant est la première à être exposée au système de vagues incidentes, lesquelles arrivent en suite sur la colonne postérieure. Le module de flottaison postérieur (4), conjointement avec la turbine postérieure (TO) et la chambre postérieure (2) délimitée par la paroi séparatrice intermédiaire (6), la plaque inférieure (7) et la plaque supérieure (8), constitue la partie postérieure du système. Le module de flottaison antérieur (3), la turbine antérieure (9) et la chambre antérieure (1) délimitée par la paroi séparatrice intermédiaire (6) et la plaque horizontale (5), alignée avec la plaque supérieure (8) et séparée de celle-ci par la paroi séparatrice intermédiaire (6), sont des éléments fondamentaux de la partie antérieure ou avant du dispositif. Les turbines antérieure et postérieure (9 et 10) sont indépendantes et chacune fonctionne sur chacun des deux modules constituant ce convertisseur.
PCT/PT2018/000002 2017-02-09 2018-02-09 Dispositif de conversion de l'énergie des vagues Ceased WO2018147753A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT109903A PT109903B (pt) 2017-02-09 2017-02-09 Dispositivo flutuante de conversão da energia das ondas
PT109903 2017-02-09

Publications (1)

Publication Number Publication Date
WO2018147753A1 true WO2018147753A1 (fr) 2018-08-16

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WO (1) WO2018147753A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608387A (en) * 2021-06-29 2023-01-04 Havkraft As Energy converter for ocean waves and method for using thereof
EP4600483A1 (fr) 2024-02-07 2025-08-13 Frenesim Das Ondas, LDA Convertisseur d'énergie à ondes de résonance multiples et procédé respectif de celui-ci

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB620669A (en) 1946-02-06 1949-03-29 H J Mulliner & Co Ltd Improvements in or relating to locking devices for cant rails of vehicle bodies
JPS61190172A (ja) * 1985-02-18 1986-08-23 Mitsubishi Electric Corp 波力エネルギ−変換装置
JPH01142273A (ja) * 1987-11-27 1989-06-05 Kaiyo Kagaku Gijutsu Center 浮遊式消波型波力発電装置
US4858434A (en) * 1982-10-15 1989-08-22 Kohichi Nishikawa Wave-activated power generator
CA2286545A1 (fr) 1999-05-26 2000-11-26 Robert Bishop Centrale energetique a colonne d'eau oscillante
US20100038912A1 (en) * 2006-10-20 2010-02-18 Maritime Technologies Limited Floatable wave energy converter and a method for improving the efficiency of a floatable wave energy converter
DE102009008211A1 (de) 2009-02-10 2010-08-12 Philipp Sinn Energiegewinnung aus Wellen oder Impulsen
DE102010053300A1 (de) 2010-12-02 2012-06-06 Andreas Haustov Strom aus Ozeanwellen
CN203394680U (zh) 2013-07-24 2014-01-15 浙江海洋学院 离岸式振荡水柱发电装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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US4189918A (en) * 1978-08-14 1980-02-26 The Secretary Of State For Energy In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Devices for extracting energy from wave power

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB620669A (en) 1946-02-06 1949-03-29 H J Mulliner & Co Ltd Improvements in or relating to locking devices for cant rails of vehicle bodies
US4858434A (en) * 1982-10-15 1989-08-22 Kohichi Nishikawa Wave-activated power generator
JPS61190172A (ja) * 1985-02-18 1986-08-23 Mitsubishi Electric Corp 波力エネルギ−変換装置
JPH01142273A (ja) * 1987-11-27 1989-06-05 Kaiyo Kagaku Gijutsu Center 浮遊式消波型波力発電装置
CA2286545A1 (fr) 1999-05-26 2000-11-26 Robert Bishop Centrale energetique a colonne d'eau oscillante
US20100038912A1 (en) * 2006-10-20 2010-02-18 Maritime Technologies Limited Floatable wave energy converter and a method for improving the efficiency of a floatable wave energy converter
DE102009008211A1 (de) 2009-02-10 2010-08-12 Philipp Sinn Energiegewinnung aus Wellen oder Impulsen
DE102010053300A1 (de) 2010-12-02 2012-06-06 Andreas Haustov Strom aus Ozeanwellen
CN203394680U (zh) 2013-07-24 2014-01-15 浙江海洋学院 离岸式振荡水柱发电装置

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Title
BOYLE, G.: "Renewable energy - power for a sustainable future", 2004, OXFORD UNIVERSITY PRESS
REZAHEJAD, K.; GUEDES SOARES, C.: "Maritime Technology and Engineering", 2015, TAYLOR FRANCIS GROUP, article "Hydrodynamic performance assessment of a floating oscillating water column", pages: 1287 - 1296
REZANEJAD, K.; BHATTACHARJEE, J.; GUEDES SOARES, C.: "Stepped se,a bottom effects on the efficiency of nearshore oscillating water column device", OCEAN ENGINEERING, vol. 70, 2013, pages 25 - 38, XP028682896, DOI: doi:10.1016/j.oceaneng.2013.05.029
REZANEJAD, K.; GUEDES SOARES, C.: "Developments in Maritime Transportation and Exploitation of Sea Resources", 2014, FRANCIS & TAYLOR GROUP, article "Numerical study of a large floating oscillating water column device using a 2D boundary element method", pages: 951 - 960
REZANEJAD, K.; GUEDES SOARES, C.: "Maritime Technology and Engineering", 2015, TAYLOR & FRANCIS GROUP, article "Hydrodynamic performance assessment of a floating oscillating water column", pages: 1287 - 1296

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608387A (en) * 2021-06-29 2023-01-04 Havkraft As Energy converter for ocean waves and method for using thereof
GB2608387B (en) * 2021-06-29 2024-07-31 Havkraft As Energy converter for ocean waves and method for using thereof
EP4600483A1 (fr) 2024-02-07 2025-08-13 Frenesim Das Ondas, LDA Convertisseur d'énergie à ondes de résonance multiples et procédé respectif de celui-ci

Also Published As

Publication number Publication date
PT109903B (pt) 2023-01-18
PT109903A (pt) 2018-08-09

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