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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0067537 (2013-10-30) |
등록번호 | US-10161312 (2018-12-25) |
발명자 / 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 529 |
A system is provided with a turbine combustor having a first diffusion fuel nozzle, wherein the first diffusion fuel nozzle has first and second passages that separately inject respective first and second flows into a chamber of the turbine combustor to produce a diffusion flame. The first flow incl
A system is provided with a turbine combustor having a first diffusion fuel nozzle, wherein the first diffusion fuel nozzle has first and second passages that separately inject respective first and second flows into a chamber of the turbine combustor to produce a diffusion flame. The first flow includes a first fuel and a first diluent, and the second flow includes a first oxidant. The system includes a turbine driven by combustion products from the diffusion flame in the turbine combustor. The system also includes an exhaust gas compressor, wherein the exhaust gas compressor is configured to compress and route an exhaust gas from the turbine to the turbine combustor along an exhaust recirculation path.
1. A system, comprising: a turbine combustor, comprising: a first diffusion fuel nozzle, wherein the first diffusion fuel nozzle comprises first, second, and third passages that separately inject respective first, second, and third flows into a chamber of the turbine combustor to produce a diffusion
1. A system, comprising: a turbine combustor, comprising: a first diffusion fuel nozzle, wherein the first diffusion fuel nozzle comprises first, second, and third passages that separately inject respective first, second, and third flows into a chamber of the turbine combustor to produce a diffusion flame, wherein the first flow comprises a first fuel and a first diluent, the second flow comprises a first oxidant, the third flow comprises a second diluent, and the first, second, and third passages extend along an entire axial length of the first diffusion fuel nozzle;a diluent injection system disposed downstream from the first diffusion fuel nozzle;a first wall disposed about the chamber, a second wall disposed about the first wall, and an exhaust passage disposed between the first and second walls;a turbine driven by combustion products from the diffusion flame in the turbine combustor;an exhaust gas compressor, wherein the exhaust gas compressor is configured to compress and route an exhaust gas from the turbine to the turbine combustor along an exhaust recirculation path; anda control system responsive to sensor feedback to adjust one or more operating parameters to control an equivalence ratio, wherein the one or more operating parameters comprise an oxidant flow rate and/or a fuel flow rate to the turbine combustor, and wherein the control system is configured to maintain the equivalence ratio between 0.95 and 1.05;wherein the diluent injection system comprises a plurality of diluent injectors wherein at least one diluent injector of the plurality of diluent injectors comprises a conduit extending through the first wall, the second wall, and the exhaust passage of the turbine combustor, such that the at least one diluent injector of the plurality of diluent injectors is configured to directly inject steam, nitrogen, a first portion of the exhaust gas, or another inert gas, or a combination thereof, into the chamber of the turbine combustor;wherein the diluent injection system comprises a first plurality of openings in the first wall of the turbine combustor configured to inject a second portion of the exhaust gas into the chamber of the turbine combustor; andwherein the diluent injection system comprises a second plurality of openings in the second wall of the turbine combustor configured to inject the second portion of the exhaust gas into the exhaust passage disposed between the first and second walls. 2. The system of claim 1, wherein the first diluent comprises steam, nitrogen, another inert gas, a third portion of the exhaust gas, or any combination thereof. 3. The system of claim 1, wherein the first, second, and third passages have respective first, second, and third outlets that are disposed along a downstream end of the first diffusion fuel nozzle, and the first, second, and third passages are isolated from one another along the entire axial length of the first diffusion fuel nozzle. 4. The system of claim 1, wherein the first passage extends around the second passage, or the second passage extends around the first passage. 5. The system of claim 1, wherein the first and second diluents are different from one another. 6. The system of claim 1, wherein the first and second diluents comprise portions of the exhaust gas. 7. The system of claim 1, wherein the first diffusion fuel nozzle comprises a fourth passage separate from the first, second, and third passages, wherein the fourth passage is configured to inject a fourth flow into the chamber separately from the first, second, and third flows, wherein the fourth flow comprises a second fuel, a third diluent, or a second oxidant. 8. The system of claim 1, wherein the third flow comprises a second oxidant. 9. The system of claim 8, wherein the first oxidant and the second oxidant are the same as one another. 10. The system of claim 1, wherein the second diluent comprises the exhaust gas. 11. The system of claim 1, wherein the first portion of the exhaust gas and the second portion of the exhaust gas are the same. 12. A method, comprising: injecting first, second, and third flows separately through respective first, second, and third passages of a first diffusion fuel nozzle into a chamber of a turbine combustor to produce a diffusion flame, wherein the first flow comprises a first fuel and a first diluent, the second flow comprises a first oxidant, the third flow comprises a second diluent, and the first, second, and third passages extend along an entire axial length of the first diffusion fuel nozzle;injecting steam, nitrogen, a first portion of exhaust gas, or another inert gas, or a combination thereof, into the chamber of the turbine combustor downstream from the first diffusion fuel nozzle using a diluent injection system disposed downstream from the first diffusion fuel nozzle, wherein the turbine combustor comprises a first wall disposed about the chamber, a second wall disposed about the first wall, and an exhaust passage disposed between the first and second walls, wherein the diluent injection system comprises a plurality of diluent injectors, wherein at least one diluent injector of the plurality of diluent injectors comprises a conduit extending through the first wall, the second wall, and the exhaust passage of the turbine combustor, such that the at least one diluent injector of the plurality of diluent injectors is configured to directly inject the steam, nitrogen, the first portion of the exhaust gas, or another inert gas, or combination thereof, into the chamber;injecting a second portion of exhaust gas into the chamber of the turbine combustor using the diluent injection system, wherein the diluent injection system comprises a first plurality of openings in the first wall of the turbine combustor configured to inject the second portion of the exhaust gas into the chamber of the turbine combustor, wherein diluent injection system comprises a second plurality of openings in the second wall of the turbine combustor configured to inject the second portion of the exhaust gas into the exhaust passage disposed between the first and second walls;driving a turbine with combustion products from the diffusion flame, and outputting the exhaust gas;recirculating the exhaust gas along an exhaust recirculation path to an exhaust gas compressor;compressing and routing the exhaust gas to the turbine combustor; andadjusting one or more operating parameters to maintain an equivalence ratio between 0.95 and 1.05 using a control system, wherein the one or more operating parameters comprise an oxidant flow rate and/or a fuel flow rate to the turbine combustor. 13. The method of claim 12, wherein the first diluent comprises steam, nitrogen, another inert gas, a third portion of the exhaust gas, or any combination thereof. 14. The method of claim 12, wherein injecting comprises separately injecting the first, second, and third flows from the respective first, second, and third passages that are isolated from one another along the first diffusion fuel nozzle. 15. The method of claim 12, wherein the respective first, second, and third passages are isolated from one another along the entire axial length of the first diffusion fuel nozzle. 16. The method of claim 12, wherein the first and second diluents are different from one another. 17. The method of claim 12, wherein the first and second diluents comprise portions of the exhaust gas. 18. The method of claim 12, wherein injecting comprises separately injecting the first flow, the second flow, the third flow, and a fourth flow through respective first, second, third and fourth passages of the first diffusion fuel nozzle, wherein the first, second, third, and fourth passages are isolated from one another along the entire axial length of the first diffusion fuel nozzle, and wherein the fourth flow comprises a second fuel, a third diluent, or a second oxidant. 19. The method of claim 12, wherein the third flow comprises a second oxidant. 20. The method of claim 12, wherein the second diluent comprises the exhaust gas. 21. The system of claim 12, wherein the first portion of the exhaust gas and the second portion of the exhaust gas are the same.
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