General Electric Company

Ge Infrastructure Technology, LLC

Ge Vernova Infrastructure Technology LLC

Raub Warfield Smith

Jatila Ranasinghe

Leroy Omar Tomlinson

Rahul Jaikaran Chillar

Ashok Kumar Anand

Barrett David Gardiner

Lewis Berkley Davis, Jr

Charles Michael Jones

Diego Fernando Rancruel

Veerappan Muthaiah

Seyfettin Can Gülen

Alston Ilford Scipio

Awadesh Kumar Tiwari

Rex Allen Morgan

Harold Lamar Jordan, Jr

Achalesh Kumar Pandey

Parag Prakash Kulkarni

Bruce Gordon Norman

Robert Joseph Reed

William George Carberg

Mahesh Kumar Asati

Raymond Pang

Mahendhra Muthuramalingam

Francois Droux

Bhaskar Pemmi

Erhan Karaca

John Edward Sholes, Jr

Leslie Yung Min Tong

Robert John Gdaniec

Joseph John

Abhijit Gupta

Robert William Bjorge

John Edward Sholes

Virginia Yang

Adrianto Darmoyo

Bryan Michael Jones

S Can Gulen

Manu Dev Arora

Matthew Lennon

Majed Sammak

Dhinesh Thanganadar

Murali Krishna Kalaga

Thomas Raymond Farrell

Cheng Eng Cong

SCan Gulen

A method of operating a combined cycle power plant to facilitate increasing an output of the power plant. The method includes discharging a first exhaust gas stream from a gas turbine engine and extracting heat from the first exhaust gas stream via a heat recovery steam generator. The method also includes discharging a second exhaust gas stream from the heat recovery steam generator, pressurizing a first portion of the second exhaust gas stream using a recirculation compressor, and cooling the first portion of the second exhaust gas stream using a first cooler. The method further includes discharging a cooled exhaust gas stream from the first cooler to the gas turbine engine and modulating, via a controller, a flow and a temperature of the first portion of the second exhaust gas stream recirculated towards the gas turbine engine.

Combined cycle power plants with exhaust gas recirculation intercooling

A combustion system includes a topping cycle that generates a flow of exhaust gas, a bottoming cycle, and a fuel cell. The fuel cell includes an anode side, a cathode side, and an electrolyte. The cathode side receives the flow of exhaust gas from the topping cycle via a cathode inlet line. The cathode side removes a first portion of pollutants from the exhaust gas. A heat recovery steam generator (HRSG) receives the exhaust gases from the cathode side via a cathode outlet line, and the HRSG generates a flow of steam for use in the bottoming cycle. A bypass line extends from the cathode inlet line to the cathode outlet line. The combustion system further includes a carbon capture system that is fluidly coupled to the HRSG via an HRSG outlet line. The carbon capture system removes a second portion of pollutants from the exhaust gas.

Combustion system having a fuel cell and a carbon capture system

A combined cycle power plant (CCPP) includes a heat recovery steam generator (HRSG) that includes a first economizer and a condensate supply line. The HRSG receives a flow of exhaust gas from the turbine section. The CCPP further includes a fuel heating system that has a fuel supply line and a high temperature heat exchanger. The fuel supply line is fluidly coupled to the combustion section. The high temperature heat exchanger is disposed in thermal communication on the fuel supply line. A high temperature input line fluidly couples the high temperature heat exchanger to the first economizer of the HRSG such that the high temperature heat exchanger receives water from the first economizer. A recirculation line fluidly coupling the high temperature heat exchanger to the condensate supply. A hydro turbine is disposed on the recirculation line.

Combined cycle power plant having reduced parasitic pumping losses

A combined cycle power plant including a gas turbine engine having a compressor inlet and a turbine outlet that is configured to discharge a first exhaust gas stream therefrom. A heat recovery steam generator is configured to receive the first exhaust gas stream, extract heat from the first exhaust gas stream to make steam, and discharge a second exhaust gas stream therefrom. A steam turbine is configured to discharge a steam stream therefrom, a carbon capture system is configured to receive the steam stream, a recirculation blower is configured to pressurize a portion of the second exhaust gas stream for recirculation towards the compressor inlet, and an air inlet blower is configured to pressurize an airflow stream channeled towards the compressor inlet, such that a pressurized mixed flow stream, formed from the portion of the second exhaust gas stream and the airflow stream, is received at the compressor inlet.

Combined cycle power plants with exhaust gas recirculation

A combined cycle power plant (CCPP) is provided. The CCPP includes a gas turbine that has a compressor section, a combustion section, and a turbine section. The CCPP further includes a heat recovery steam generator (HRSG) that has a first economizer. The HRSG receives a flow of exhaust gas from the turbine section. The HRSG further includes a fuel heating system that has a fuel supply line and a high temperature heat exchanger disposed in thermal communication on the fuel supply line. The fuel supply line is fluidly coupled to the combustion section. The high temperature heat exchanger is fluidly coupled to the first economizer such that the high temperature heat exchanger receives water from the first economizer. The CCPP further includes a feedwater pump that is fluidly coupled to the high temperature heat exchanger.

A combined cycle power plant includes a gas turbine engine that includes a compressor having a compressor inlet, a compressor outlet, and an interstage inlet defined therebetween. The turbine also includes a turbine outlet configured to discharge a first exhaust gas stream therefrom. A heat recovery steam generator is configured to receive the first exhaust gas stream, extract heat from the first exhaust gas stream, and discharge a second exhaust gas stream therefrom. Either a recirculation compressor pressurizes a first portion of the second exhaust gas stream for recirculation towards the compressor interstage inlet, or an admission compressor pressurizes an air stream directed towards the compressor interstage inlet. A first cooler cools the stream directed to the compressor, thereby defining a cooled stream, wherein the first cooler provides the cooled stream to the interstage inlet of the compressor.

The present application provides an energy control computing device for adjusting one or more steam flow parameters delivered to a steam turbine from a heat recovery steam generator via a number of control devices. The energy control computing device includes a processor in communication with a memory. The processor is programmed to receive a number of measured operating values, identify steam turbine operating limits, identify a number of candidate operating modes meeting steam turbine operating limits, selecting the candidate operating mode maximizing the steam flow parameters while not exceeding the steam turbine operating limits, and directing the control devices to meet the selected candidate operating mode.

System and method to improve combined cycle plant power generation capacity via heat recovery energy control

A combined cycle power plant and heating and cooling system and method for the power plant is disclosed as having a liquid natural gas supply and a vaporizer configured to vaporize the liquid natural gas into natural gas that is supplied to a gas performance heater before entering a combustion section of a gas turbine. A closed cooling water circuit is in fluid communication with at least one power plant component such as a gas turbine inlet heating/cooling coil, a heat recovery heat exchanger, the vaporizer, and mixtures thereof. An open cooling water circuit is in fluid communication with at least one power plant component such as at least one steam turbine condenser, the heat recovery heat exchanger, and mixtures thereof.

System and method for improving output and heat rate for a liquid natural gas combined cycle power plant

An airflow control system for a gas turbine system according to an embodiment includes: an airflow generation system for attachment to a rotatable expander shaft of a gas turbine system, downstream of the gas turbine system, for drawing in a flow of ambient air through an air intake section into a mixing area; and an eductor nozzle for attachment to a downstream end of the turbine component for receiving an exhaust gas stream produced by the gas turbine system and for drawing in a flow of ambient air through the air intake section into the mixing area, the exhaust gas stream passing through the eductor nozzle into the mixing area; wherein, in the mixing area, the exhaust gas stream mixes with the flow of ambient air drawn in by the airflow generation system and the flow of ambient air drawn in by the eductor nozzle to reduce a temperature of the exhaust gas stream.

Power generation system exhaust cooling

A method for adjusting startup floor pressure levels of HRSG steam circuits is implemented by a pressure controlling computing device including a processor and a memory. The method includes receiving a plurality of measured plant operating values associated with a HRSG steam circuit, identifying a plurality of candidate pressure levels for use in pressurizing the HRSG steam circuit, determining a calculated steam velocity level for each of the plurality of candidate pressure levels, identifying a steam velocity limit for a steam piping section of the HRSG steam circuit, selecting a lowest pressure level of the plurality of candidate pressure levels, wherein the lowest pressure level is associated with a determined calculated steam velocity level that does not exceed the identified velocity limit, and pressurizing the HRSG steam circuit to the selected lowest pressure level.

Systems and methods for adjusting floor pressure levels to improve combined cycle plant startup

Various embodiments include a system having: at least one computing device configured to tune a set of gas turbines (GTs) by performing actions including: commanding each GT in the set of GTs to a base load level, based upon a measured ambient condition for each GT; commanding each GT in the set of GTs to adjust a respective output to match a nominal mega-watt power output value, and subsequently measuring an actual fuel flow value and an actual emissions value for each GT; adjusting at least one of a fuel flow or a water flow for each GT to an adjusted water/fuel ratio in response to the actual emissions value deviating from an emissions level associated with the base load level, while maintaining the respective adjusted output; and adjusting an operating condition of each GT in the set of GTs based upon a difference between the respective measured actual fuel flow value and a nominal fuel flow value at the ambient condition, while maintaining the adjusted water/fuel ratio.

Power outlet, emissions, fuel flow and water flow based probabilistic control in liquid-fueled gas turbine tuning, related control systems, computer program products and methods

In certain embodiments, a system includes a controller configured to obtain an inter-stage pressure measurement between stages of a multi-stage compressor. The controller is also configured to identify actual damage in the multi-stage compressor based at least in part on the inter-stage pressure measurement.

Multi-stage compressor fault detection and protection

Systems and methods provided herein. In one embodiment, a system includes an advisory system including a loss computation engine configured to derive a total system loss for an industrial plant based on a first sensor positioned in a first industrial plant component and on a first physical model of the first industrial plant component. The advisory system further includes a cost model configured to use a cost function to derive a cost based on the total system loss, and a control strategy system configured to derive an advisory report, a control correction factor, or a combination thereof, based on the cost, wherein a control system is configured to apply the control correction factor to control a process in the industrial plant.

Plant control systems and methods

A combined cycle power plant in which a gas turbine engine generates power, a heat recovery steam generator (HRSG) produces steam from high energy fluids produced from the generation of power in the gas turbine engine and a steam turbine engine generates additional power from the steam produced in the HRSG. The combined cycle power plant includes a heating element fluidly interposed between the steam turbine engine and the HRSG to heat fluid output from the steam turbine engine, which is to be fed to the HRSG and a control system to control an amount the fluid output from the steam turbine engine is heated by the heating element based on differences between HRSG and ambient temperatures.

Combined cycle power plant

An attemperation system and an atomizing air system are integrated for a combined cycle turbine including a gas turbine and a steam turbine. The atomizing air system receives compressor discharge air for fuel atomization. The atomizing air system includes an atomizing air cooler that serves to cool the compressor discharge air. A heat recovery steam generator receives exhaust from the gas turbine and generates steam for input to the steam turbine via an attemperation system. A feed water circuit draws feed water from the heat recovery steam generator and communicates in a heat exchange relationship with the atomizing air cooler to heat the feed water. The feed water circuit communicates the heated feed water to the attemperation system of the heat recovery steam generator.

Atomizing air heat exchange for heating attemperation feed water in a combined cycle turbine

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Ballston Lake, NY, United States of America

Raub Warfield Smith