Solar augmented wind turbine for stable and dispatchable utility scale power generation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03G-006/00
F03G-007/00
F01K-001/00
F01K-003/00
F03D-009/00
H02P-009/04
출원번호
US-0307010
(2011-11-30)
등록번호
US-8739533
(2014-06-03)
발명자
/ 주소
Yogev, Or
Yogev, Yitzhak
출원인 / 주소
Yogev, Or
대리인 / 주소
Browdy and Neimark, PLLC
인용정보
피인용 횟수 :
2인용 특허 :
14
초록▼
The present invention describes a novel integration between wind and solar thermal renewable energy technologies. An existing wind turbine consisting of a hub and blades is operated by the power generated from a waterless solar thermal system (using high pressure, high temperature air) during period
The present invention describes a novel integration between wind and solar thermal renewable energy technologies. An existing wind turbine consisting of a hub and blades is operated by the power generated from a waterless solar thermal system (using high pressure, high temperature air) during periods of low wind availability. The solar thermal system consist of a heliostat field, solar air receiver panels, a thermal energy storage tank and a Pelton wheel assembly system for converting thermal energy of air into kinetic energy of the power shaft of the wind turbine. The thermal energy converting system consists of a plurality of supersonic air nozzles acting as stator, producing supersonic air jets to interact with a rotating Pelton wheel. A thermal storage system provides means for energy dispatchability. The proposed integrated system is capable of generating a stable renewable energy with minimum intermittency.
대표청구항▼
1. A system for electric power generation from solar and wind energy sources, comprising: a wind turbine including: a tower (25) having a tower top and a tower base mounted on a surface,a nacelle cover (22) mounted on the tower top and comprising an electrical generator (27) and a main shaft (21) co
1. A system for electric power generation from solar and wind energy sources, comprising: a wind turbine including: a tower (25) having a tower top and a tower base mounted on a surface,a nacelle cover (22) mounted on the tower top and comprising an electrical generator (27) and a main shaft (21) configured to drive the electrical generator (27),a hub (28) arranged at one end of the nacelle cover and mechanically coupled to the electrical generator through the main shaft (21), anda plurality of rotor blades (29) attached to the hub (28) for rotating thereof, thereby driving the electrical generator (27);a driving wheel (9) mechanically coupled to the electrical generator and to the hub (28);a wheel manifold (43 or 30) surrounding the driving wheel (9, or 23);at least one solar air-receiver panel (5 or 6) mounted on the tower (25) and comprising at least one header (32) and serpentine flow tubes (33) connected to the header (32), said at least one header (32) and said serpentine flow tubes (33) containing a gas capable to flow therethrough in operation of the system;a hot air pipe (7) being in a gas communication with said at least one solar air-receiver panel at one end, and to the wheel manifold (43) at another end;a plurality of heliostats (1) arranged in the vicinity of the tower (25) configure for receiving solar light and reflecting the solar light to said at least one solar air-receiver panel;a thermal storage tank (3) having a tank top and a tank base, and including a hot air inlet (40) arranged at the tank top and coupled to the hot air pipe (7), a cold air-inlet (42) arranged at the tank base and a cold-air outlet (41) arranged at the tank base, said thermal storage tank (3) configured for storing thermal energy transferred from at least one solar air-receiver panel by the gas receiving the thermal energy when passing through the serpentine flow tubes (33) and through said at least one header (32) and carrying said thermal energy to said thermal storage tank (3) when passing to the hot air inlet (40);a four-way valve (26) coupled to the hot air inlet (40) and to the hot air pipe (7), and configured (i) to provide a gas flow from the thermal storage tank (3) to the wheel manifold (43), (ii) to provide a gas flow from said at least one solar air-receiver panel (5 or 6) to the wheel manifold (43), and (iii) to provide a gas flow from said at least one solar air-receiver panel (5 or 6) to the thermal storage tank (3);an air compressor (4) in one mode of operation being coupled to the cold air-inlet (42) of thermal storage tank (3) for providing the compressed gas thereto for heating the gas, and forcing the heated gas from the thermal storage tank (3) to the wheel manifold (43) coupled to the thermal storage tank (3) through the four-way valve (26) connected the hot air pipe (7), and in another mode of operation being couple to said at least one air solar panel (5 or 6) for heating the gas, and forcing the heated gas from said at least one solar air-receiver panel (5 or 6) to the wheel manifold (43) through the four-way valve (26) connected the hot air pipe (7); anda fan (2) coupled to the cold-air outlet (41) of the thermal storage tank (3) and to said at least one solar air-receiver panel (5 or 6), and configured for providing a gas flow circulation therebetween. 2. The system of claim 1, wherein the wheel manifold (43) surrounds the driving wheel (9) and has a plurality of air nozzles (14) mounted in openings along an inner circumference of the wheel manifold (43) and facing the wheel (9). 3. The system of claim 2, wherein the air nozzles (14) are oriented such that an impinging force provided by the compressed gas is tangential to the wheel. 4. The system of claim 2, wherein the driving wheel (9) is configured as a Pelton wheel. 5. The system of claim 4, wherein the Pelton wheel includes a plurality of buckets (12). 6. The system of claim 5, wherein a tangential velocity of the buckets in operation of the system is half of a velocity of the gas ejected from the air nozzles (14). 7. The system of claim 2, wherein the inner circumference of the wheel manifold (43) includes an exhaust wheel port (47) configure for release of the gas from the wheel. 8. The system of claim 7, further comprising a vacuum pump (48) in gas communication with the compressor (4) and the exhaust wheel port (47) of wheel manifold, and configured for providing vacuum condition at the exhaust wheel port (47). 9. The system of claim 2, wherein the air nozzles (14) of the wheel manifold (43) are supersonic air nozzles. 10. The system of claim 1 wherein the driving wheel (9) is mechanically coupled to the electrical generator through a front-end shaft (39) and to the hub (28) through the main shaft (21). 11. The system of claim 1 wherein the driving wheel (9) is mechanically coupled to the electrical generator through a shaft extension (18) and to the hub (28) through the main shaft (21). 12. The system of claim 1, wherein the wheel manifold is configured as a housing (30) surrounding the driving wheel (23) and has a plurality of vanes (49) arranged on an inner circumference of the housing (30) and separated by openings in the inner circumference and providing an expansion of the gas through the vanes (49) and the openings inwardly toward the wheel (23) for rotating thereof. 13. The system of claim 1, further comprising a gear reducer system (15) arranged between the driving wheel (9 or 23) and the electrical generator (27) for matching the rotating speed therebetween. 14. The system of claim 13, wherein the gear reducer system (15) is mounted at the rear side of the electrical generator (27) through a shaft extension (18). 15. The system of claim 1, further comprising a brake system (19) arranged inside the nacelle cover (22) and a brake system front-end shaft (39) coupling the brake system (19) to the electrical generator (27) through a bevel gear reducer system (31) which in turn also coupled to the driving wheel (9 or 23). 16. The system of claim 1, wherein said thermal storage tank (3) includes a ceramic honey-comb structure including gas channels formed into a ceramic matrix. 17. The system of claim 1, wherein said thermal storage tank (3) includes pebbles. 18. The system of claim 1, wherein the gas used in the system is selected from air, Helium, CO2.
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이 특허에 인용된 특허 (14)
Crane, Stephen E.; Fong, Danielle A.; Berlin, Jr., Edwin P., Energy storage system utilizing compressed gas.
Alejandro Jose L. A. (Galveston TX) Grant Serge J. (Galveston TX), Epcon energy field system an energy producing conglomerate (EPCAN) system using wind energy, solar panels, and steam tur.
Enis, Ben M.; Lieberman, Paul, Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid.
Enish,Ben M.; Lieberman,Paul, Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid.
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