KR-20260065527-A - INTEGRATION SYSTEMS FOR GAS TURBINE ENGINES AND METHODS OF USE

KR20260065527AKR 20260065527 AKR20260065527 AKR 20260065527AKR-20260065527-A

Abstract

An integrated system for use with a gas turbine engine includes an exhaust gas recirculation (EGR) system that is fluidly coupled to the gas turbine section of the gas turbine engine. The EGR system includes an EGR conduit that is fluidly coupled to the exhaust line of the gas turbine engine and fluidly coupled to an EGR manifold located upstream of the inlet of the compressor section of the gas turbine engine. The EGR conduit is oriented to supply a portion of the exhaust gas discharged from the gas turbine section to the EGR manifold. Additionally, the EGR system also includes a flow limiting component that is fluidly coupled to the exhaust line of the gas turbine engine. The flow limiting component is located downstream of the EGR conduit of the EGR system. The flow limiting component facilitates increasing the pressure of the exhaust gas discharged from the gas turbine section.

Inventors

삼막, 마제드
헤이스, 폴 앨런
구나세카란, 라비쿠마르
벤카타, 산디프 쿠마르 레디
크리슈난, 지반쿠마르

Assignees

지이 버노바 테크놀로지 게엠베하

Dates

Publication Date: 20260508
Application Date: 20251027
Priority Date: 20241101

Claims (14)

As a power generation system, Gas turbine engine - The above gas turbine engine is, Compressor section for compressing the working fluid; A combustor section located downstream of the compressor section and in fluid communication with the compressor section; and Includes a gas turbine section located downstream of the combustor section and in fluid communication with the combustor section; and The integrated system includes a fluid-communication system with the above gas turbine engine, and the integrated system, As an exhaust gas recirculation (EGR) system that is in fluid communication with the gas turbine section of the above gas turbine engine, the EGR system comprises: An EGR system comprising an EGR conduit fluidly coupled to the exhaust line of the gas turbine engine and fluidly coupled to an EGR manifold upstream of the inlet of the compressor section of the gas turbine engine, wherein the EGR conduit is oriented to provide a portion of the exhaust gas discharged from the gas turbine section to the EGR manifold; and A flow limiting component that flows in flow communication with the exhaust line of the gas turbine engine, comprising a flow limiting component located downstream of the EGR conduit of the EGR system, The above flow limiting component facilitates increasing the pressure of exhaust gas discharged from the above gas turbine section, power generation system.
In paragraph 1, It further includes a supplementary component located downstream of the exhaust line of the gas turbine engine and in fluid communication with the exhaust line of the gas turbine engine, The above flow restriction component is in fluid communication with the above supplementary component and is a power generation system that is one of the following: Upstream of the above supplementary component, or Included within the supplementary component above, or Located downstream of the above supplementary component.
In paragraph 2, the EGR conduit of the EGR system is located upstream or downstream of the supplementary component, in a power generation system.
In paragraph 2, the supplementary component is, A heat recovery steam generator (HRSG) located downstream of the exhaust line of the gas turbine engine and in fluid communication with the exhaust line of the gas turbine engine; and An exhaust stack located downstream of the exhaust line of the gas turbine engine and in fluid communication with the exhaust line of the gas turbine engine. A power generation system comprising at least one of the following.
In claim 1, the flow restriction component of the EGR system is, Adjustable dampener, and Fluid-coupled reducer component to the above exhaust line A power generation system comprising at least one of the following, wherein the reducer component comprises a converging diameter.
A power generation system according to claim 5, wherein the integrated system further comprises a controller communically coupled to the adjustable damper, and the controller selectively adjusts the adjustable damper to facilitate changing the pressure of the exhaust gas generated by the gas turbine section.
In paragraph 6, the above-mentioned integrated system is, The gas turbine engine further comprises an inlet bleed heat (IBH) system including an inlet bleed heat conduit fluid-coupled to the compressor section, wherein the IBH system is configured to send a flow extracted downstream of the outlet of the compressor section through the IBH conduit to an IBH manifold upstream of the inlet of the compressor section. The controller of the above integrated system is coupled to the IBH system so as to be communicable, Providing exhaust gas generated by the above gas turbine section to the EGR manifold through the above EGR conduit; Providing the above extracted flow from the outlet of the compressor section to the IBH manifold through the IBH conduit. A power generation system that is selectively adjusted between.
A power generation system according to claim 7, wherein the controller of the integrated system is configured to selectively adjust between providing the exhaust gas and providing the extracted flow based on the operating characteristics of the gas turbine engine.
In claim 7, the EGR manifold of the EGR system is a power generation system positioned upstream of the IBH manifold of the IBH system.
A step of adjusting the pressure of exhaust gas generated by a gas turbine section of a gas turbine engine using a flow limiting component, wherein the flow limiting component is in flow communication with the exhaust line of the gas turbine engine; and The method includes the step of providing exhaust gas generated by the gas turbine section of the gas turbine engine to the EGR manifold of the EGR system through an exhaust gas recirculation (EGR) conduit. A method in which the above EGR conduit is fluidly coupled to the exhaust line of the gas turbine engine and the EGR manifold, which are upstream of the above flow limiting component.
In item 10, the step of adjusting the pressure of the exhaust gas is, A method further comprising the step of optionally adjusting a damper forming a flow limiting component of the EGR system to facilitate changing the pressure of the exhaust gas generated by the gas turbine section.
In claim 11, the step of selectively adjusting the dampener of the EGR system is, A step of increasing the flow rate of the exhaust gas flowing through the exhaust line of the gas turbine engine; or Step of reducing the flow rate of the exhaust gas flowing through the exhaust line of the gas turbine engine A method that additionally includes one of the following.
In Paragraph 10, A method further comprising the step of providing the extracted flow from the outlet of the compressor section of the gas turbine engine to the IBH manifold through the IBH conduit of the inlet bleed heat (IBH) system.
In Paragraph 13, Based on the determined operating characteristics of the above gas turbine engine, Providing the above-mentioned extracted flow to the IBH manifold through the IBH conduit, or Providing exhaust gas generated by the gas turbine section of the above gas turbine engine to the EGR manifold through the EGR conduit. A method comprising an additional step of selectively determining

Description

Integrated Systems for Gas Turbine Engines and Methods of Use Cross-reference regarding related applications This application is a partial continuation of PCT application PCT/US23/30311 filed on August 16, 2023, the entirety of which is incorporated herein by reference. The field of the present disclosure generally relates to turbine engine assemblies, and more specifically to a method and system for heating compressor inlet air to facilitate the improvement of gas turbine engine efficiency. Gas turbines are widely used in various commercial operations, such as power generation. Known gas turbines generally include a compressor, one or more combustors, and a turbine. Typically, the compressor contains the working fluid, For example, air is compressed and the compressed working fluid is released into a combustor. Fuel is injected into the flow of the compressed working fluid, and the mixture is ignited to produce combustion gases with relatively high temperature, pressure, and velocity. The combustion gases exit the combustor and flow into a turbine, where they expand and perform work that can be converted into electrical and/or mechanical power. for example To prevent freezing when operating in a low-temperature environment, the working fluid entering the compressor inlet, for example, the inlet transition duct or filter housing, may be heated. The inlet working fluid may also be heated to improve the partial or partial load efficiency of the gas turbine. In some gas turbines, the compressed working fluid may be extracted from an extraction location near the compressor outlet and recirculated to heat the inlet working fluid using a system commonly referred to as an inlet bleed heat system. However, known inlet bleed heat systems reduce the overall operating efficiency of the associated gas turbine engine because at least a portion of the compressed working fluid, which would normally be routed to do work in the turbine, is extracted and recirculated to the inlet. Therefore, there is a need for a system and method to heat the inlet working fluid more efficiently before it enters the compressor inlet in a manner that facilitates the reduction of overall turbine efficiency losses. In one embodiment, an integrated system for use with a gas turbine engine is provided. The integrated system includes an exhaust gas recirculation (EGR) system that is fluidly connected to the gas turbine section of the gas turbine engine. The EGR system includes an EGR conduit that is fluidly coupled to the exhaust line of the gas turbine engine and fluidly coupled to an EGR manifold located upstream of the inlet of the compressor section of the gas turbine engine. The EGR conduit is oriented to provide a portion of the exhaust gas discharged from the gas turbine section to the EGR manifold. Additionally, the EGR system also includes a flow limiting component that is fluidly connected to the exhaust line of the gas turbine engine. The flow limiting component is located downstream of the EGR conduit of the EGR system. The flow limiting component facilitates increasing the pressure of the exhaust gas discharged from the gas turbine section. In another embodiment, a power generation system is provided. The power generation system includes a gas turbine engine comprising a compressor section for compressing a working fluid and a combustor section downstream of the compressor section and in flow communication with the compressor section. The gas turbine engine also includes a gas turbine section downstream of the combustor section and in flow communication with the combustor section. The power generation system also includes an integrated system in flow communication with the gas turbine engine. The integrated system includes an exhaust gas recirculation (EGR) system in flow communication with the gas turbine section of the gas turbine engine. The EGR system includes an EGR conduit fluidly coupled to the exhaust line of the gas turbine engine and fluidly coupled to an EGR manifold upstream of the inlet of the compressor section of the gas turbine engine. The EGR conduit is also oriented to provide a portion of the exhaust gas discharged from the gas turbine section to the EGR manifold. The integrated system also includes a flow limiting component in flow communication with the exhaust line of the gas turbine engine, and the flow limiting component is downstream of the EGR conduit of the EGR system. Additionally, the flow restriction component facilitates increasing the pressure of the exhaust gas released from the gas turbine section. In another embodiment, a method is provided. The method comprises the step of adjusting the pressure of exhaust gas generated by a gas turbine section of a gas turbine engine using a flow limiting component, wherein the flow limiting component is fluidly coupled to the exhaust line of the gas turbine engine. The method also comprises the step of providing exhaust gas generated by a gas turbine section of th