AU2020100933A4 - A novel combined system for the multi-purpose utilization of the offshore renewable energy resource - Google Patents
A novel combined system for the multi-purpose utilization of the offshore renewable energy resource Download PDFInfo
- Publication number
- AU2020100933A4 AU2020100933A4 AU2020100933A AU2020100933A AU2020100933A4 AU 2020100933 A4 AU2020100933 A4 AU 2020100933A4 AU 2020100933 A AU2020100933 A AU 2020100933A AU 2020100933 A AU2020100933 A AU 2020100933A AU 2020100933 A4 AU2020100933 A4 AU 2020100933A4
- Authority
- AU
- Australia
- Prior art keywords
- chamber
- owc
- combined system
- offshore
- tower
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012546 transfer Methods 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
- F03B13/141—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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
-
- 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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- 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
-
- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
A combined system, which consists of a torus-type multi-chamber oscillating
water column (OWC) device and a monopile-supported offshore wind turbine, is
proposed in this patent. The combined system is developed for the multi-purpose
5 utilization of the offshore renewable energy resource, and it belongs to the
technical field of offshore renewable energy. The combined system includes
several main components, such as a wind turbine, a tower, a monopile foundation
and a torus-type multi-chamber (OWC) device. Compared with other
single-function offshore wave energy or wind energy converters, the combined
.o system proposed in this patent takes the obvious advantage of low cost, high
stability and high quality of the power generation, and therefore provides a
promising solution for the comprehensive utilization of offshore renewable energy.
I/4
2
3
4
Fig. 1 Front view of the combined system
Description
I/4
2 3
4
Fig. 1 Front view of the combined system
Application Area
A combined system consisting of a torus-type multi-chamber oscillating water
column (OWC) device and a monopile-supported offshore wind turbine is
proposed. The combined system is developed for the multi-purpose utilization of
the offshore renewable energy resource, and it belongs to the technical field of
.0 offshore renewable energy.
Background
Nowadays, the vigorous development of the wave energy converters and offshore wind turbines has received extensive attention. Due to the high power .5 density and longtime availability, considerable efforts and advances have been made in exploiting the energy of ocean waves worldwide, and various wave energy converters have been invented to harvest the wave energy. Among
different classes of designs, the OWC device has been regarded as one of the most promising options. In addition to wave energy, wind energy is also an important source of offshore renewable energy, and offshore wind turbines have also been widely built for the harvesting and exploitation of the available enormous wind energy resource. So far, the most widely used support structure for offshore wind turbine is the monopile foundation. For both the wave energy converter and offshore wind turbine, there is a need for the reduction in the cost. Due to the natural correlation, wave energy may also be considerable in the region where the offshore wind energy resource is rich. Significant opportunities and benefits have been identified through an integration of energy systems of different technologies into one single platform. The combination of the wind and wave energy devices can reduce the cost relevant to the operation, maintenance, foundation substructure as well as the electric grid infrastructure, since the two systems will share the foundation substructure and electric grid especially with regard to the transportation of the produced power to onshore stations. Except for the good aspects from a cost-benefit point of view, the combination of the two energy systems can also lead to the efficient use of .0 ocean space. Due to the various possible advantages as a result of the combination of wind and wave energy devices, a combined system consisting of a torus-type multi-chamber OWC device and a monopile-supported offshore wind turbine is proposed in this patent.
.s Introduction of the patent In this patent, a combined system is proposed for the multi-purpose utilization of offshore renewable energy resource. The system consists of a torus-type multi-chamber OWC device and a monopile-supported offshore wind turbine. In the proposed system, the OWC device and the wind turbine share the same monopile foundation and the same power transmission system. Then, the cost of the power generation can be largely reduced. In the meantime, as the wave energy and wind energy are highly complementary to each other, the power supply stability and quality of the overall power generation can be largely improved. The combined system includes a series of components, such as the wind turbine, tower, monopile foundation and the OWC device. As for the wind turbine, it mainly includes the blades, nacelle and rotor hub. The blades are fixed on the rotor hub by bolts. In addition, the rotor hub and the central shaft of the nacelle are rigidly connected by bolts. The wind turbine is connected rigidly to the top of the tower through welding. The outer wall surface of the OWC device is welded with 4 symmetrically arranged sliding chutes. In the meantime, the outer wall surface of the tower is welded with 4 symmetrically arranged vertical guide rails. A plurality of one-to-one corresponding bolt holes are opened on the sliding chutes and guide rails, respectively. By making use of the bolt holes as well as bolts, the
OWC device is rigidly connected to the tower. In addition, the monopile foundation is rigidly connected to the tower through welding. The OWC device is of torus shape, and coaxial with the foundation. The OWC is .o partly submerged with its bottom open to the sea. Four thin rigid partitions are used to divide the whole chamber into four equivalent fan-shaped sub-chambers along the circumferential direction. In each sub-chamber, there exist an air duct installed on the roof. The air duct houses an electric generator and an air turbine. The incident waves excite the water column inside the chamber to oscillate, and .5 transfer energy to the air above the water column. The pneumatic power can then be converted into electricity when the air is flowing through the air turbine coupled with an electric generator.
Compared with other single-function offshore wave energy or wind energy converters, the combined system proposed in this patent takes the obvious advantage of low cost, high stability and high quality of the power generation, and therefore provides a promising solution for the comprehensive utilization of offshore renewable energy.
Figure list: Fig. 1 Front view of the combined system
Fig. 2 Side view of the combined system
Fig. 3 Top view of the OWC device at the free surface
Fig. 4 Sketch of the internal structure of each fan-shaped sub chamber
Fig. 5 Sketch of the connection between the OWC and the tower
In these figures, '1' represents the blades of the wind turbine; '2' represents the
nacelle; '3' represents the rotor hub; '4' represents the tower; '5' represents the
monopile foundation; '6' represents the OWC device; '7' represents the electric
generator located in the air duct; '8' represents the air turbine; '9' represents the
air duct; '10' represents the fan-shaped sub chamber; '11' represents the bolts;
'12' represent the bolt hole; '13' represents the sliding chutes; '14' represents the
vertical guide rails.
.0
Implementation scheme of the patent
The implementation scheme of the patent is described below. As shown in
these figures, the combined system includes several components, such as the
tower (4), the monopile foundation (5), the OWC device (6) and a wind turbine
.5 located at the top of the tower. The wind turbine mainly includes the blades (1),
the nacelle (2) and the rotor hub (3). The blades (1) are fixed on the rotor hub (3)
by bolts. In addition, the rotor hub (3) and the central shaft of the nacelle (2) are
rigidly connected by bolts. The outer wall surface of the OWC device is welded
with 4 symmetrically arranged sliding chutes (13). In addition, the outer wall
surface of the tower (4) is welded with 4 symmetrically arranged vertical guide
rails (14). A plurality of one-to-one corresponding bolt holes (12) are opened on
the sliding chutes and guide rails, respectively. By making use of the bolts (11) as
well as bolt holes (12), the OWC device (6) is rigidly connected to the tower (4). In
the meantime, the monopile foundation (5) is rigidly connected to the tower (4)
through welding.
The OWC device (6) is of torus shape. Four thin rigid partitions are used to divide the whole chamber into four fan-shaped sub-chambers (10) along the circumferential direction. In each sub-chamber, there exist an air duct (9) installed on the roof. The air duct houses an electric generator (7) and an air turbine (8). As the bottom of the chamber is open to the sea, the external incident waves can transmit into the chamber, and then form an oscillating water column. The
reciprocating oscillation of the water column will drive the exchange of the air inside and outside of the chamber, thereby driving the rotation of the air turbine. Then, the rotation of the air turbine will force the electric generator to generate .o electricity. The working process of this patent is as follows: Under the action of wind, the blades of the wind turbine will rotate, forcing the kinetic energy of the wind converted into the mechanical energy. The offshore wave energy and wind energy own good natural correlations. The abundant wind energy resource is usually .5 accompanied by a large amount of wave energy resource. Under the influence of external incident waves, the fluid trapped inside the chamber will undergo periodic motions, and then forms an oscillating water column. The reciprocating
oscillation of the water column will drive the exchange of the air inside and outside of the chamber, thereby driving the rotation of the air turbine. Then, the rotation of the air turbine will force the electric generator installed in the air duct to generate electricity.
Claims (2)
1. In this patent, a combined system, which consists of a torus-type multi-chamber oscillating water column (OWC) device and a monopile-supported offshore wind turbine, is proposed. The system includes a series of components, such as a wind turbine, a tower, a monopile foundation and a torus-type multi-chamber OWC device. The outer wall surface of the OWC device is welded with 4 symmetrically arranged sliding chutes. In the meantime, the outer wall .o surface of the tower is welded with 4 symmetrically arranged vertical guide rails. A plurality of one-to-one corresponding bolt holes are opened on the sliding chutes and guide rails, respectively. By making use of the bolts as well as the bolt holes, the OWC device can be rigidly connected to the tower at different locations along the vertical direction. s5
2. The OWC device is of torus shape, and coaxial with the monopile foundation. The OWC is partly submerged with its bottom open to the sea. Four thin rigid partitions, which are made of stainless steel, are used to divide the whole chamber into four equivalent fan-shaped sub-chambers. The bottom edge of the partitions is flush with the bottom edge of the chamber. The side and top edges of partitions are connected to the inner wall surface of the chamber through welding. In each sub-chamber, there exist an air duct installed on the roof. The air duct houses an electric generator and an air turbine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245362.6A CN110805516A (en) | 2019-12-07 | 2019-12-07 | Wave energy-wind energy integrated power generation system based on multi-air-chamber oscillating water column device |
| CN201911245362.6 | 2019-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020100933A4 true AU2020100933A4 (en) | 2020-07-16 |
Family
ID=69492703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020100933A Ceased AU2020100933A4 (en) | 2019-12-07 | 2020-06-04 | A novel combined system for the multi-purpose utilization of the offshore renewable energy resource |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110805516A (en) |
| AU (1) | AU2020100933A4 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749836A (en) * | 2020-07-03 | 2020-10-09 | 大连理工大学 | Floating type wave power generation device based on multi-air-chamber oscillating water column device |
| CN111911335B (en) * | 2020-08-13 | 2021-09-14 | 昆明理工大学 | Wave energy and wind energy combined power generation device and ship |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368891B (en) * | 2016-11-25 | 2018-11-06 | 福建省新能海上风电研发中心有限公司 | A kind of wind energy, ocean energy composite generating set |
| CN207310461U (en) * | 2018-01-16 | 2018-05-04 | 芜湖市韩源众科汽车新材料有限公司 | A kind of automatic charging different densities particle blanking uniform device |
| CN108979943A (en) * | 2018-08-27 | 2018-12-11 | 大连理工大学 | A kind of fixed wind energy of four based on suction tube-wave energy integrated power generation system |
| CN109611284A (en) * | 2019-01-23 | 2019-04-12 | 大连理工大学 | A kind of novel floating multiple-energy-source integrated power generation system |
| CN211144686U (en) * | 2019-12-07 | 2020-07-31 | 大连理工大学 | Wave energy-wind energy integrated power generation system based on multi-air-chamber oscillating water column device |
-
2019
- 2019-12-07 CN CN201911245362.6A patent/CN110805516A/en active Pending
-
2020
- 2020-06-04 AU AU2020100933A patent/AU2020100933A4/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN110805516A (en) | 2020-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |