Gas turbine fast regulation and power augmentation using stored air
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-001/00
F02C-006/16
F02C-006/08
F02C-007/08
F02C-007/143
F02C-007/10
F02C-006/14
F02C-003/34
출원번호
US-0534598
(2014-11-06)
등록번호
US-9777630
(2017-10-03)
발명자
/ 주소
Kraft, Robert J.
Auerbach, Scott
Perri, Peter
출원인 / 주소
POWERPHASE LLC
대리인 / 주소
Lathrop Gage LLP
인용정보
피인용 횟수 :
1인용 특허 :
27
초록▼
The present invention discloses a novel apparatus and methods for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of an electrical grid. Improvements in power augmentation and engine operation inc
The present invention discloses a novel apparatus and methods for augmenting the power of a gas turbine engine, improving gas turbine engine operation, and reducing the response time necessary to meet changing demands of an electrical grid. Improvements in power augmentation and engine operation include systems and methods for providing rapid response given a change in electrical grid.
대표청구항▼
1. A system for providing a supply of hot compressed air to an energy generating system comprising: a gas turbine engine comprising a compressor coupled to a turbine through a shaft, one or more combustion systems in fluid communication with the compressor and the turbine, and a generator coupled to
1. A system for providing a supply of hot compressed air to an energy generating system comprising: a gas turbine engine comprising a compressor coupled to a turbine through a shaft, one or more combustion systems in fluid communication with the compressor and the turbine, and a generator coupled to the shaft; an air injection piping system in communication with the gas turbine engine through an air injection valve; and, a high pressure air storage system comprising: a high pressure compressor; a compressed air storage tank; an electrical heating source formed on the compressed air storage tank for maintaining the compressed air storage tank at an elevated temperature; a storage tank outlet valve; wherein the high pressure air storage system is in selective fluid communication with the gas turbine engine; and wherein the supply of hot compressed air is injected into a Brayton cycle system. 2. The system of claim 1, wherein compressed air from the compressed air storage tank bleeds through the storage tank outlet valve and preheats the air injection piping system. 3. The system of claim 1, wherein the air injection piping system is selectively preheated with compressed air from the compressed air storage tank or from the gas turbine engine. 4. The system of claim 1, wherein the high pressure compressor of the high pressure air storage system compresses ambient air or further compresses compressed air from the gas turbine engine. 5. The system of claim 1, wherein the high pressure compressor is a reciprocating air compressor. 6. The system of claim 1, wherein the storage tank outlet valve and injection valve operate to allow a constant flow of air from the storage tank as pressure in the storage tank decreases. 7. A system for providing a supply of hot compressed air to an energy generating system comprising: a gas turbine engine comprising a compressor coupled to a turbine through a shaft, one or more combustion systems in fluid communication with the compressor and the turbine, and a generator coupled to the shaft where the compressor is compressing ambient pressure air; an air injection piping system in communication with the gas turbine engine through an air injection valve; a high pressure air storage system in selective fluid communication with the gas turbine engine via the air injection piping system, the high pressure air storage system having a high pressure compressor, a compressed air storage tank having an electrical heating source formed on the compressed air storage tank for maintaining air in the compressed air storage tank at an elevated temperature, and a storage tank outlet valve; an auxiliary source of compressed air in selective fluid communication with the gas turbine engine via the air injection piping system comprising: a fueled engine coupled to a multi-stage intercooled compressor, the fueled engine producing exhaust heat and the multi-stage intercooled compressor compressing ambient pressure air; a recuperator receiving compressed air from the multi-stage intercooled compressor and heating the compressed air with the exhaust heat; and, an air injection valve located between the recuperator and the air injection piping system; wherein the high pressure air storage system and the auxiliary source of compressed air provide an increase in compressed air flow to the gas turbine engine; and wherein the supply of hot compressed air is injected into a Brayton cycle system. 8. The system of claim 7, wherein compressed air is simultaneously injected into the gas turbine engine from the compressed air storage tank and the auxiliary source of compressed air, where the auxiliary source of compressed air is heated with only exhaust heat from the fueled engine. 9. The system of claim 7, wherein compressed air from the compressed air storage tank is directed through the storage tank outlet valve and preheats the air injection piping system. 10. The system of claim 7, wherein compressed air from the auxiliary source of compressed air is directed through the air injection valve and preheats the air injection piping system. 11. The system of claim 7, wherein the high pressure compressor of the high pressure air storage system compresses ambient air or compressed air from the gas turbine engine. 12. The system of claim 7 wherein the high pressure compressor is a multistage intercooled reciprocating compressor. 13. A method of operating an energy generating system comprising: operating a gas turbine engine comprising a compressor coupled to a turbine through a shaft, one or more combustion systems in fluid communication with the compressor and the turbine, and a generator coupled to the shaft; compressing a flow of air in a high pressure compressor of an air storage system; directing the flow of air from the high pressure compressor and into a compressed air storage tank; storing the flow of air in the compressed air storage tank; heating the flow of air in the compressed air storage tank with an electrical heating source formed on the compressed air storage tank; opening a storage tank outlet valve; and injecting the flow of air from the compressed air storage tank into a Brayton cycle system. 14. The method of claim 13, wherein the flow of compressed air passes from the compressed air storage tank and through an air injection piping system before injecting into the gas turbine engine. 15. The method of claim 13 further comprising preheating the air injection piping system with a portion of the flow of air from the compressed air storage tank. 16. The method of claim 13, wherein the flow of air compressed by the high pressure compressor is compressed to a pressure at least 50% higher than compressed air in the gas turbine engine. 17. A method of operating an energy generating system comprising: operating a gas turbine engine comprising a compressor coupled to a turbine through a shaft, one or more combustion systems in fluid communication with the compressor and the turbine, and a generator coupled to the shaft; compressing a flow of air through a high pressure compressor of an air storage system; directing the flow of air from the high pressure compressor into a compressed air storage tank; storing the flow of air in the compressed air storage tank; heating the air in the compressed air storage tank at an elevated temperature with an electrical heating source formed on the compressed air storage tank; opening a valve of an air injection piping system; injecting the flow of air from the compressed air storage tank through an open storage tank outlet valve and into a Brayton cycle system; operating a fueled engine coupled to a multi-stage intercooled compressor to produce compressed air, the fueled engine producing exhaust heat; heating the compressed air in a recuperator with the exhaust heat from the fueled engine; and, directing the compressed air into the gas turbine engine. 18. The method of claim 17 further comprising preheating the air injection piping system. 19. The method of claim 17, wherein the flow of air compressed by the high pressure compressor is compressed to a pressure at least 50% higher than compressed air in the gas turbine engine. 20. The method of claim 17, wherein the flow of air from the compressed air storage tank and the intercooled compressor are injected simultaneously. 21. The method of claim 17, wherein the flow of air from the compressed air storage tank is injected into the energy generating system prior to the compressed air from the intercooled compressor. 22. A method for providing a supply of hot compressed air to an energy generating system, the method comprising generating energy from a gas turbine engine comprising a compressor coupled to a turbine through a shaft, one or more combustion systems in fluid communication with the compressor and the turbine, and a generator coupled to the shaft where the compressor is compressing ambient pressure air, the gas turbine engine fitted with an air injection piping system in communication with the gas turbine engine through an air injection valve, the air injection piping system and the air injection valve configured to allow hot air injection for incremental energy generation from a high pressure air storage system and an auxiliary source of compressed air individually or collectively; wherein the incremental energy generation from the high pressure air storage is derived by injecting hot compressed air from the high pressure air storage system which is in selective fluid communication with the gas turbine engine via the air injection piping system, the high pressure air storage system having a high pressure compressor, a compressed air storage tank, an electrical heat source for maintaining the compressed air storage tank at an elevated temperature, and a storage tank outlet valve; wherein the incremental energy generation from the auxiliary source of compressed air is derived by injecting hot compressed air from the auxiliary source of compressed air which is in selective fluid communication with the gas turbine engine via the air injection piping system, the auxiliary source of compressed air comprising: a fueled engine coupled to a multi-stage intercooled compressor, the fueled engine producing exhaust heat and the multi-stage intercooled compressor compressing ambient pressure air; a recuperator receiving compressed air from the multi-stage intercooled compressor and heating the compressed air with the exhaust heat; and, an air injection valve located between the recuperator and the air injection piping system; and injecting the supply of hot compressed air into a Brayton cycle. 23. The method of claim 22, further comprising simultaneously injecting the hot compressed air into the gas turbine engine from the compressed air storage tank and the auxiliary source of compressed air, where the auxiliary source of compressed air is heated from only the exhaust heat of the fueled engine. 24. The method of claim 22, further comprising preheating the air injection piping system with hot compressed air from the compressed air storage tank which is directed through the storage tank outlet valve. 25. The method of claim 22, further comprising preheating the air injection piping system with hot compressed air from the auxiliary source of compressed air which is directed through the air injection valve. 26. The method of claim 22, further comprising compressing ambient pressure air or cooled compressed air from the gas turbine engine with the high pressure compressor of the high pressure air storage system.
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이 특허에 인용된 특허 (27)
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Nakhamkin,Michael, Power augmentation of combustion turbines with compressed air energy storage and additional expander with airflow extraction and injection thereof upstream of combustors.
Nakhamkin, Michael, Retrofit of simple cycle gas turbine for compressed air energy storage application having expander for additional power generation.
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