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141.发明授权公开(公告)号：US10577982B2
公开(公告)日：2020-03-03
申请号：US14969185
申请日：2015-12-15
Applicant: General Electric Company
Inventor： Alston Ilford Scipio , Sanji Ekanayake , Joseph Philip Klosinski
Abstract: A power plant includes a gas turbine including a turbine extraction port that is in fluid communication with a hot gas path of the turbine and an exhaust duct that receives exhaust gas from the turbine outlet. The power plant further includes a first gas cooler having a primary inlet fluidly coupled to the turbine extraction port, a secondary inlet fluidly coupled to a coolant supply system and an outlet in fluid communication with the exhaust duct. The power plant further includes a gas distribution manifold that is disposed downstream from the outlet of the first gas cooler and which receives a portion of the combustion gas or a portion of the cooled combustion gas and distributes the portion of the combustion gas or a portion of the cooled combustion to one or more secondary operations of the power plant.
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公开(公告)号：US10436073B2
公开(公告)日：2019-10-08
申请号：US14969165
申请日：2015-12-15
Applicant: General Electric Company
Abstract: A power plant includes an exhaust duct downstream from an outlet of a turbine which receives exhaust gas from the turbine outlet, a first ejector having a primary inlet that is fluidly coupled to a turbine extraction port and an outlet that is in fluid communication with the exhaust duct. The power plant further includes a second ejector having a primary inlet fluidly coupled to the compressor extraction port, a suction inlet in fluid communication with an air supply and an outlet in fluid communication with a suction inlet of the first ejector. The first ejector cools the stream of combustion gas via compressed air extracted from the compressor and cooled via the second ejector. The cooled combustion gas mixes with the exhaust gas within the exhaust duct to provide a heated exhaust gas mixture downstream from the exhaust duct.
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公开(公告)号：US10415432B2
公开(公告)日：2019-09-17
申请号：US14969200
申请日：2015-12-15
Applicant: General Electric Company
Inventor： Alston Ilford Scipio , Sanji Ekanayake , Joseph Philip Klosinski , Paul Robert Fernandez , David Clayton Poole
IPC: F02C7/22 , F02C9/18 , F01K23/10 , F01K7/16 , F23R3/28 , F23R3/00 , F02C6/18 , F02C7/141 , F02C7/224 , F01K15/00 , F01K17/02
Abstract: A power plant includes a gas turbine including a turbine extraction port that is in fluid communication with a hot gas path of the turbine and an exhaust duct that receives exhaust gas from the turbine outlet. The power plant further includes a first gas cooler having a primary inlet fluidly coupled to the turbine extraction port, a secondary inlet fluidly coupled to a coolant supply system and an outlet in fluid communication with the exhaust duct. The first gas cooler provides a cooled combustion gas to the exhaust duct which mixes with the exhaust gas to provide an exhaust gas mixture to a heat exchanger downstream from the exhaust duct. The power plant further includes a fuel heater in fluid communication with the outlet of the first gas cooler.
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144.发明授权公开(公告)号：US10267231B2
公开(公告)日：2019-04-23
申请号：US14819770
申请日：2015-08-06
Applicant: General Electric Company
Inventor： Joseph Phillip Klosinski , Alston Ilford Scipio , Sanji Ekanayake
Abstract: A system for augmenting gas turbine power output is disclosed. The system may include a gas turbine engine having a compressor, a combustor, and a turbine. The system also may include a pressurized air tank in communication with the gas turbine engine. Moreover, the system may include an external compressor in communication with the pressurized air tank. The external compressor may be configured to supply compressed air to the pressurized air tank, and the pressurized air tank may be configured to supply compressed air to the gas turbine engine.
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公开(公告)号：US10247110B2
公开(公告)日：2019-04-02
申请号：US14862374
申请日：2015-09-23
Applicant: General Electric Company
Inventor： Alston I. Scipio , David Terry Trayhan, Jr. , Sanji Ekanayake , Paul Robert Fernandez
Abstract: A method and system for transitioning a gas turbine from burning gaseous fuel to liquid fuel and purging the liquid fuel therefrom after transfer back to the gaseous fuel are disclosed herein. The method includes pressurizing a volume of liquid fuel in an accumulator with a first volume of motive gas. A valve is opened in response to low gaseous fuel pressure in the gas turbine to permit the volume of liquid fuel to flow through a conduit to the gas turbine. A volume of flushing medium is pressurized in the accumulator with a second volume of motive gas. The valve is opened to permit at least a portion of the volume of flushing medium to flow through the conduit to flush any of the volume of liquid fuel remaining in the conduit after the gas turbine consumes the volume of liquid fuel.
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Patent Agency Ranking
公开(公告)号：US20180274391A1
公开(公告)日：2018-09-27
申请号：US15464955
申请日：2017-03-21
Applicant: General Electric Company
Inventor： George Vargese Mathai , Jeremy Andrew Williams , Joseph Klosinski , Sanji Ekanayake , William Fisher , Alston Scipio
CPC classification number: F01K23/101 , F02C3/04 , F02C6/18 , F02C9/50 , F22G5/12 , H02K7/1823 , Y02E20/16
Abstract: Embodiments of systems and methods described in this disclosure are directed to operating a combined cycle power plant. In certain embodiments, systems and methods can be provided for a combined cycle power plant incorporating a control system that uses a holistic approach to continuously and automatically adjust a heat rate of the combined cycle power plant and achieve a desired efficiency. In accordance with one embodiment of the disclosure, the control system can be used to dynamically control various operations of the combined cycle power plant, including addressing of certain conflicting requirements such as avoiding generation of superheated steam in an attemperator while concurrently maintaining exhaust emissions within allowable regulatory limits and maintaining exhaust gas temperatures within allowable material capability limits. The use of such a control system allows for an increased turndown capability of the combined cycle power plant along with an improvement in a combined cycle heat rate of the combined cycle power plant.
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公开(公告)号：US10066632B2
公开(公告)日：2018-09-04
申请号：US14964620
申请日：2015-12-10
Applicant: GENERAL ELECTRIC COMPANY
Abstract: The present application provides an inlet bleed heat control system for a compressor of a gas turbine engine. The inlet bleed heat control system provides an inlet bleed heat manifold and an ejector in communication with the inlet bleed heat manifold such that the ejector is in communication with a flow of compressor discharge air and a flow of ambient air.
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148.发明授权公开(公告)号：US09964035B2
公开(公告)日：2018-05-08
申请号：US14969067
申请日：2015-12-15
Applicant: General Electric Company
Inventor： Joseph Philip Klosinski , Michael Anthony Cocca , Alston Ilford Scipio , Sanji Ekanayake , Jason Brian Shaffer
CPC classification number: F02C6/06 , F01D25/305 , F01K23/10 , F01K23/101 , F02C3/04 , F02C6/18 , H02K7/1823 , Y02E20/14 , Y02E20/16
Abstract: A power plant includes a turbine having a plurality of turbine stages and an extraction port in fluid communication with one or more of the turbine stages. The extraction port provides a flow path for a stream of combustion gas to flow out of the turbine. An exhaust duct is disposed downstream from the turbine and receives exhaust gas from the turbine. The exhaust duct is fluid communication with the extraction port. A coolant injection system injects a coolant into the stream of combustion gas to provide cooled combustion gas to the exhaust duct. The cooled combustion gas flows into the exhaust duct at a temperature that is higher than a temperature of the exhaust gas, thereby increasing the temperature of the exhaust gas within the exhaust duct. The increase in thermal energy may be used to produce steam downstream from the exhaust duct.
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149.发明申请公开(公告)号：US20180100442A1
公开(公告)日：2018-04-12
申请号：US15290273
申请日：2016-10-11
Applicant: General Electric Company
Inventor： George Vargese Mathai , Joseph Klosinski , Sanji Ekanayake , Alston Scipio
CPC classification number: F02C9/52 , F02C9/18 , F02C9/54 , F04D27/0223 , F04D27/0246 , F04D27/0261 , F05D2270/3015 , H02K7/1823 , H02P9/04
Abstract: Systems and methods to control performance via control of compressor operating limit line (OLL) protection actions. According to an embodiment of the disclosure, a method of controlling a turbine in a power plant can be provided. The method may include receiving a selection of a desired performance parameter associated with an operational mode of a power plant; receiving a set of measured performance parameters at a current operating condition of a turbine associated with the power plant; receiving an operating limit line (OLL) of a compressor associated with the turbine; and receiving a compressor pressure ratio (CPR) at the current operating condition of the turbine. The method may further include: comparing the CPR to an operating limit pressure ratio on the OLL at the current operating condition of the turbine; based at least in part on the comparison, a difference between the CPR and the operating limit pressure ratio exceeding a predetermined threshold can be determined; and based at least in part on the difference between the CPR and the operating limit pressure ratio, the selection of the desired performance parameter, and the set of measured performance parameters, one or more response actions via a control system of the turbine can be implemented.
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150.发明授权公开(公告)号：US09863285B2
公开(公告)日：2018-01-09
申请号：US14662836
申请日：2015-03-19
Applicant: General Electric Company
Inventor： Sanji Ekanayake , Thomas John Freeman , John David Memmer , Timothy Joseph Rehg , Alston Ilford Scipio
CPC classification number: F01K23/10 , F02C3/10 , F02C6/00 , F02C6/02 , F02C6/08 , F02C6/18 , F02C9/18 , Y02E20/14 , Y02E20/16
Abstract: A power generation system may include a generator; a gas turbine system for powering the generator, the gas turbine system including a turbine component, an integral compressor and a combustor to which air from the integral compressor and fuel are supplied, the combustor arranged to supply hot combustion gases to the turbine component, and the integral compressor having a flow capacity greater than an intake capacity of at least one of the combustor and the turbine component, creating an excess air flow. A first control valve system controls flow of the excess air flow along an excess air flow path to a supplemental gas turbine system. The excess air flow may be combusted with a fuel and supplied to the supplemental gas turbine system. An eductor may be positioned in the excess air flow path for using the excess air flow as a motive force to augment the excess air flow with additional gas.
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