Abstract: A combined cycle power plant (10) has a gas turbine (11), a heat recovery steam generator (16) which is connected downstream to the gas turbine (11) and delivers steam to a steam turbine (19), an exhaust gas recycling line (28) which returns some of the exhaust gases, which flow from the exhaust of the gas turbine (11) through the heat recovery steam generator (16), to the inlet of the gas turbine (11), and also a CO2 separating plant (25) which separates from the non-returned part of the exhaust gases the CO2 which is contained therein and delivers it to a CO2 outlet. A reduction of the equipment cost or a flexible adaptation of the operation can be achieved by a supplementary firing (17) being associated with the heat recovery steam generator (16), which by combusting a carbonaceous fuel produces additional exhaust gases with CO2 content and transmits them through the heat recovery steam generator (16).

Abstract: This invention discloses systems and methods for control of a gas turbine or a gas turbine generator, where the gas turbine is connected to a dryer vessel in which gas turbine exhaust gases are used to heat treat a material in the dryer vessel. The control system comprises one or more sensors for temperature, moisture and/or flow rate in the dryer vessel and/or of the material inside, entering and/or exiting the dryer vessel and a controller responsive to the sensor for controlling the fuel and/or air flow into the gas turbine. This control system and method enables providing the appropriate heat output from the gas turbine to meet the process heat required for the desired material treatment. Optionally, the gas turbine can be a liquid fuel turbine engine, or a reciprocating engine can be substituted for the turbine engine.

Abstract: An integrated turbomachine plant is provided and includes a combustor a turbomachine operably connected to the combustor and including a compressor and a turbine expander, a pathway to flow compressed air from the compressor through the turbine expander to heat the compressed air, an additional pathway by which high temperature fluids output from the turbomachine are employed to heat the compressed air and an air separation unit operably connected to the pathway and configured to separate the heated compressed air into oxygen and oxygen-depleted air.

Abstract: A process for the co-production of hydrogen and power through the integration of a hydrogen production unit and a power generation unit is provided. The hydrogen production unit comprises a gas heated reformer, a water gas shift reactor, and a hydrogen separator which produces a low-BTU hydrocarbon fuel stream and a purified hydrogen stream. The low-BTU hydrocarbon fuel stream, along with a compressed oxygen-containing stream extracted from the power generation unit, is combusted to provide heat to the reformer.

Abstract: A method for producing carbon dioxide for use in hydrocarbon recovery has the steps of producing an exhaust stream from a combustion turbine, passing the exhaust stream through a heat recovery steam generator so as to produce a carbon dioxide-laden stream and a steam, absorbing the carbon dioxide from the carbon-dioxide laden stream into a solution, pumping the solution to a stripper so as to produce carbon dioxide gas, compressing the carbon dioxide gas from the stripper, and injecting the compressed carbon dioxide gas into a hydrocarbon-bearing formation. The combustion turbine and the heat recovery steam generator are portable.

Abstract: A fuel cell system includes at least one fuel cell with an anode region and a cathode region, a burner for burning exhaust gases from the fuel cell and also additional fuel that may optionally be supplied, and a storage volume for intermediate storage of exhaust gases that flow away continuously or discontinuously via a valve from the anode region of the fuel cell, the storage volume being arranged between the anode region and the burner. The hot exhaust gases of the burner are expanded in an expansion device. A method of the operation of a fuel cell system involves controlling an additional valve after the storage volume.

Abstract: A system configured for the production of at least one product selected from the group consisting of syngas, Fischer-Tropsch synthesis products, power, and chemicals, the system comprising a dual fluidized bed gasification apparatus and at least one apparatus selected from power production apparatus configured to produce power from the gasification product gas, partial oxidation reactors configured for oxidation of at least a portion of the product gas, tar removal apparatus configured to reduce the amount of tar in the product gas, Fischer-Tropsch synthesis apparatus configured to produce Fischer-Tropsch synthesis products from at least a portion of the product gas, chemical production apparatus configured for the production of at least one non-Fischer-Tropsch product from at least a portion of the product gas, and dual fluidized bed gasification units configured to alter the composition of the product gas. Methods of operating the system are also provided.

Abstract: A thermal management system for a gas turbine engine includes a first heat exchanger and a second heat exchanger in communication with a bypass flow through an inlet. A valve is operable to selectively communicate the bypass flow to either the first heat exchanger or the second heat exchanger through the inlet.

Abstract: A method is provided for operating a power plant, having a waste heat-generating gas turbine unit and also rooms which are to be air conditioned. Waste heat, which is discharged directly to the outside of the gas turbine unit, is used for heating the rooms which are to be air conditioned. A gas turbine for carrying out the method is also provided.

Abstract: An integrated power generation system for reducing carbon dioxide emissions is provided. The integrated system comprises a gas turbine having an air inlet, a fuel inlet and an exhaust gas outlet; a steam-assisted gravity drainage (SAGD) boiler having an inlet connected to the exhaust gas outlet of the gas turbine, a fuel inlet, an optional air inlet, and a flue gas outlet; and a carbon dioxide capture system connected to the flue gas outlet of the SAGD boiler. A method for capturing the carbon dioxide exhausted from a gas turbine and a SAGD boiler is also provided.

Abstract: A method of reducing the concentration of pollutants in a combustion flue gas having a first temperature is provided. The method includes the step of providing an organic Rankine cycle apparatus utilizing a working fluid and including at least one heat exchanger is arranged in thermal communication with the flue gas. The method further includes the step of reducing the temperature of the flue gas to a second temperature less than the first temperature by vaporizing the working fluid within the heat exchanger utilizing thermal energy derived from the flue gas. The method further includes the step of filtering the flue gas through at least one filter disposed downstream of the heat exchanger to remove pollutants from the flue gas. An associated system configured to reduce the concentration of pollutants in the combustion flue gas is also provided.

Abstract: A method is provided for operating a gas turbine power plant with exhaust gas recirculation, in which, based upon the operating state of the gas turbine a setpoint concentration of at least one constituent in an exhaust gas flow and/or in the intake flow of the gas turbine after adding the recirculated exhaust gases is determined. The actual concentration of the at least one constituent in the exhaust gas flow and/or in the intake flow is measured and a control element for controlling the recirculation flow is controlled based upon the setpoint/actual deviation. Also provided is a gas turbine power plant with exhaust gas recirculation and includes a controller, in which a setpoint concentration of at least one constituent in an exhaust gas flow or in the intake flow of the gas turbine is determined, and a measuring instrument for measuring the actual concentration of the at least one constituent.

Abstract: An APU has a gas turbine engine and a starter generator to be selectively driven by the gas turbine engine. A sensor senses windmilling of components associated with the starter generator. A lock feature limits rotation within the starter generator when windmilling is sensed. A method of operation is also disclosed.

Abstract: The invention relates to an integrated power generation and organic fertilizer production system and method including: a biomass combustion-fuelled power station (12); a facility (14) for producing pelletized organic fertilizer (46); and means for capturing and redirecting waste heat from the power station (12) to the facility (14), to be used in producing pelletized organic fertilizer (46).

Abstract: The present invention provides a water self-sufficient turbine system comprising: (a) a combustion turbine comprising a combustion chamber disposed between an upstream compressor coupled to a downstream turbine section; (b) a water recovery unit configured to contact a first liquid desiccant with a water-rich exhaust gas stream produced by the combustion turbine, and produce a water-enriched liquid desiccant and a water-depleted exhaust gas stream; and (c) a desiccant regenerator unit configured to contact the water-enriched liquid desiccant with hot compressed air to separate water from the water-enriched liquid desiccant to provide water-rich compressed air and to regenerate the first liquid desiccant; wherein the combustion turbine is configured to supply hot compressed air to the desiccant regenerator unit and receive water-rich compressed air from the desiccant regenerator unit, and wherein the desiccant regenerator unit is configured to supply the first liquid desiccant to the water recovery unit.

Abstract: The present invention provides a motor powered by an expandable, combustible gas. The motor includes a cartridge for the generation of hydrogen. The cartridge is configured to generate high pressure and high temperature hydrogen. The motor is configured such that hydrogen generated by the cartridge is directed into a series of expandable chambers defined by at least one flywheel. The flywheel is connected to a shaft such that power generated by the hydrogen can be transmitted out of the motor. The motor is configured such that power can be generated by expansion of the hydrogen and subsequent combustion of the hydrogen.

Abstract: A breather assembly for use with a gas turbine engine includes a static housing for accepting a fluidic mixture of substances, a rotatable separator having one or more fluid inlets and arranged about an axis of rotation, an exhaust outlet defined in the housing and positioned coaxially with the rotatable separator to accept fluidic exhaust from the rotatable separator, and a static diffuser supported by the housing at or near the exhaust outlet downstream from the rotatable separator. A portion of the static diffuser extends within the rotatable separator. The static diffuser includes a flow-straightening structure configured to reduce vortex flows in fluid flows passing through the exhaust outlet.

Abstract: A turbine system comprises a compressor for compressing air to generate a compressed flow, an air separation unit for receiving and separating at least a portion of the compressed flow into oxygen and a low-oxygen stream, a combustor for receiving and combusting at least a portion of the low-oxygen stream, a portion of the compressed flow and a fuel to generate a high temperature exhaust gas, and a turbine for receiving and expanding the high temperature exhaust gas to generate electricity and a reduced temperature low-NOx exhaust gas.

Abstract: A nitrogen source supplies a flow of nitrogen to a cooling circuit in the turbine section of a gas turbine. The nitrogen in the cooling circuit absorbs heat from the turbine section and flows to a flow divider where the heated nitrogen is split into a combustor flow and a return flow. The combustor nitrogen flow is injected into the gas turbine combustor. The return nitrogen flow is returned to the flow of nitrogen supplied to the gas turbine cooling circuit.

Abstract: A method is provided for use with an annular gas turbine engine component that includes a main body and an annular seal engaged to the main body with an interference fit. The method includes rotating the annular gas turbine engine component, directing thermal energy from a heat source at the annular seal to thermally expand the annular seal relative to the main body while the annular gas turbine engine component rotates, removing the heated annular seal from the main body, providing a newly manufactured replacement detail having substantially the same configuration as the main body, and engaging the removed annular seal to the replacement detail with an interference fit.

Abstract: A main air compressor delivers a compressed ambient gas flow with a compressed ambient gas flow rate to a turbine combustor. A fuel stream with a flow rate is delivered to the turbine combustor and mixed with the compressed ambient gas flow and an exhaust gas flow and burned with substantially stoichiometric combustion to form the exhaust gas flow and drive a turbine, thus operating the power plant at a first load. A portion of the exhaust gas flow is recirculated from the turbine to the turbine compressor and a portion is delivered to an exhaust path. The fuel stream flow rate and the compressed ambient gas flow rate are reduced, and substantially stoichiometric combustion is maintained and the power plant is operated at a second load. The fuel stream flow rate is further reduced and lean combustion is achieved and the power plant is operated at a third load.

Abstract: A new gas turbine-fuel cell Hybrid Cycle is proposed. The fuel cell advantageously operates close or under atmospheric pressure and is fully integrated with the gas turbine that is based on an Inverted Brayton-Joule Cycle. The idea of the invention is to capitalize on the intrinsic oxygen-nitrogen separation characteristic of the fuel cell electrolyte by sending to the Inverted Brayton-Joule Cycle only the anodic flow, which is the one free of nitrogen. In this way the flow that expands in the turbine consists only in steam and carbon dioxide. After the expansion the steam can be easily condensed, separated and pumped up. Therefore the compressor has mainly only to compress the separated carbon dioxide. This effect generates a substantial advantage in term of efficiency and enables separating the carbon dioxide.

Abstract: In some implementations, a system may include a compressor, a heat exchanger and an ITM. The compressor is configured to receive an air stream and compress the air stream to generate a pressurized stream. The heat exchanger is configured to receive the pressured stream and indirectly heat the pressurized stream using heat from an oxygen stream from an Ion Transport Membrane (ITM). The ITM is configured to receive the heated pressurized stream and generate an oxygen stream and the non-permeate stream, wherein the non-permeate stream is passed to a gas turbine burner and the oxygen stream is passed to the heat exchanger.

Abstract: An integrated turbomachine oxygen plant includes a turbomachine and an air separation unit. One or more compressor pathways flow compressed air from a compressor through one or more of a combustor and a turbine expander to cool the combustor and/or the turbine expander. An air separation unit is operably connected to the one or more compressor pathways and is configured to separate the compressed air into oxygen and oxygen-depleted air. A method of air separation in an integrated turbomachine oxygen plant includes compressing a flow of air in a compressor of a turbomachine. The compressed flow of air is flowed through one or more of a combustor and a turbine expander of the turbomachine to cool the combustor and/or the turbine expander. The compressed flow of air is directed to an air separation unit and is separated into oxygen and oxygen-depleted air.

Abstract: The invention relates to a method for removing methane from the flue gases of a gas engine, wherein the flue gases are conducted at a temperature of at most 5000 C over a noble metal catalyst, comprising a noble metal on a solid oxidic support, under conditions where no poisoning or inhibition of the noble metal catalyst by SO2 and/or NOx occurs.

Abstract: A gas turbine engine oil system has an air-oil separator for removing air from an air/oil mixture. A breather tube is connected to an exhaust of the air-oil separator for receiving hot air removed from the air/oil mixture in the air-oil separator. The gas turbine engine oil separator exhaust is directed in a cooled oil collector to cause the oil mist remaining in the air at the exit from the engine air-oil separator to condensate. The oil condensate is returned back into the engine oil system.

Abstract: Disclosed is an optimized approach of using bleed-off of compressed air flow from a gas turbine compressor in a combined-cycle power plant and performance heating to augment plant performance. In one embodiment, a diverted portion of a by-product off gas and the bleed-off of compressed air flow are fired heated to produce a high temperature flue gas that is used to performance heat a pressurized mixture of fuel prior to being supplied to the gas turbine combustor.

Abstract: A system includes a radiation detector array configured to direct a field of view toward multiple conduits within a fluid flow path from a turbine into a heat exchanger. The radiation detector array is configured to output a signal indicative of a multi-dimensional temperature profile of the fluid flow path based on thermal radiation emitted by the conduits. The system also includes a controller communicatively coupled to the radiation detector array. The controller is configured to determine a temperature variation across the fluid flow path based on the signal, and to compare the temperature variation to a threshold value.

Abstract: A novel furnace and scrubber assembly which generates electrical energy by the initial combustion of material and a methodology which causes such electrical energy to be generated. Further, a novel scrubber technology which improves both scrubber efficiency and furnace efficiency while recovering energy from a furnace exhaust stream.

Abstract: A combined heat and power plant in which air is compressed in a compressor, the compressed air is reacted with a fuel, producing high temperature, high pressure combustion products, the combustion products heat a first heat load whereby the combustion products are cooled to a temperature suitable for entry into an expander, and the cooled, high pressure combustion products are expanded in the expander which provides turning power to a power load such as a generator. Less than substantially 200% excess air and preferably less than substantially 20% excess air is compressed. The exhaust gas from the expander may optionally heat a second heat load. The first heat load may be the heating of a hydrocarbon and steam to promote steam methane reforming to form syngas. The second heat load may be a combination of boiling steam for reforming a hydrocarbon and heating a building or the like.

Abstract: An example auxiliary power unit (APU) exhaust silencer includes cooling features to protect the outer skin and other components from heat generated by gases passing through an exhaust duct. Cooling air flow through a cooling air passage in thermal contact with the exhaust silencer carries heat away from other nearby components and the aircraft skin.

Abstract: Disclosed are methods of obtaining carbon dioxide from a CO2-containing gas mixture. The methods combine the benefits of gas membrane separation with cryogenic temperatures.

Abstract: Hybrid gas-turbine electric vehicles and methods for operating hybrid gas-turbine electric vehicles are provided that make use of the gas-turbine for efficiently providing cooling for the vehicle.

Abstract: A system for cooling components of a turbine includes: at least one input in fluid communication with a source of carbon dioxide gas, the carbon dioxide gas removed from synthesis gas produced by a gasification unit from hydrocarbon fuel; and at least one first conduit in fluid communication with the at least one input and configured to divert a portion of the carbon dioxide gas from the source of carbon dioxide gas to at least one component of the turbine, the turbine configured to combust the synthesis gas.

Abstract: A turbine system includes a compressor unit which compresses a fluid; a combustor unit which burns fuel with the compressed fluid; a turbine unit which is driven due to a combustion gas that is generated when the combustor unit burns the fuel; and a first device which receives power that is generated when the turbine unit is driven. The at least one compressor unit operates using at least the generated power, and is separately disposed from at least one of the turbine unit and the first device.

Abstract: A desalination and minerals extraction process includes a desalination facility fluidly coupled to a minerals extraction facility. The desalination facility includes a nanofiltration membrane section producing a first tailings stream and a reverse osmosis membrane section producing a second tailings stream and a desalinated water outlet stream from an inlet feed stream. The extraction facility produces at least one mineral compound, an extraction tailings stream, and a second desalinated water outlet stream. At least one of the first tailings stream and the second tailings stream is fed into the extraction facility. In certain exemplary embodiments, a natural gas combined cycle power unit supplies power to at least one of the desalination facility and the extraction facility. In certain exemplary embodiments, the extraction tailings stream is recycled into the desalination facility and there are no extraction tailings streams or desalination tailings streams discharged into the environment.

Abstract: A gasifying furnace gasifies solid fuel or liquid fuel. A gas turbine drives a turbine to generate power by using combustion gas generated by burning mixed gas of compressed air compressed in a compressor and gas generated in the gasifying furnace in a combustor. A booster boosts compressed air bled from the compressor, and feed the compressed air to the gasifying furnace. A bleed source valve is provided in a bleed line between the compressor and the booster. An abnormality stop controller stops the booster and the gas turbine, based on an opening angle of the bleed source valve or a bleed pressure on an upstream side of the bleed source valve.

Abstract: A combined cycle power plant startup system is provided. The system includes a steam turbine, a HRSG, a condenser, and a bypass system. The steam turbine may include a turbine section. The HRSG may be operably connected to the steam turbine for providing steam to the steam turbine. The HRSG may include a reheater. The bypass system may be configured to adjust the steam pressure downstream of the reheater by routing steam downstream of the reheater to the condenser. The bypass system may include at least one bypass line, at least one control valve operably connected to the at least one bypass line, a pressure gauge configured to monitor the steam pressure downstream of the reheater, and a controller configured to communicate with the pressure gauge and operate the at least one control valve.

Abstract: A combined cycle power plant including a gas turbine engine having a first compressor providing compressed air for combustion to form a hot working gas, and a turbine section for expanding the hot working gas. A first heat recovery steam generator (HRSG) is provided for receiving an exhaust gas flow from the turbine section to form a reduced temperature exhaust gas and to produce a high pressure steam flow which is provided to a high pressure steam turbine. A second compressor is provided for receiving and compressing the reduced temperature exhaust gas to add energy and form a reheated exhaust gas. A second heat recovery steam generator (HRSG) is provided for receiving and removing heat from the reheated exhaust gas to produce a low pressure steam flow, and a low pressure steam turbine is provided for receiving and expanding the low pressure steam flow.

Abstract: The power plant combusts a hydrocarbon fuel with oxygen to produce high temperature high pressure products of combustion. These products of combustion are routed through an expander to generate power. The products of combustion are substantially free of oxides of nitrogen because the oxidizer is oxygen rather than air. To achieve fast starting, oxygen, fuel and water diluent are preferably stored in quantities sufficient to allow the power plant to operate from these stored consumables. The fuel can be a gaseous or liquid fuel. The oxygen is preferably stored as liquid and routed through a vaporizer before combustion in a gas generator along with the hydrocarbon fuel. In one embodiment, the vaporizer gasifies the oxygen by absorption of heat from air before the air is routed into a separate heat engine, such as a gas turbine. The gas turbine thus operates on cooled air and has its power output increased.

Abstract: A cyclonic combustor comprising a combustion liner forming a combustion chamber having a generally cylindrical shape, a biomass feed inlet for receiving biomass particles under pressure, wherein the biomass feed inlet is formed so that the biomass particles are introduced into the ignition zone of the combustion chamber with a tangential component relative to the longitudinal axis of the combustion liner, and a plurality of air tuyeres formed through the combustion liner for receiving compressed air, wherein the plurality of air tuyeres are arranged to introduce the compressed air into the combustion chamber with a tangential component relative to the longitudinal axis of the combustion liner. A direct-fired biomass-fueled pressurized gas turbine system comprising a pressurized feed system, the cyclonic combustor, and a gas turbine. Methods of operating a cyclonic combustor and methods for direct firing a gas turbine.

Abstract: A process for the production, treatment and combustion of synthesis gas for the purpose of generating electric power is disclosed. The synthesis gas is produced from a solid, carbon-containing fuel with the aid of an oxygen-containing gas and treated by a slag-separating device and a device separating alkalis. Subsequently, the synthesis gas produced is fed to an expansion turbine where the pressure energy is used for generating power. On account of the treatment and separation of alkalis the expansion turbine is protected from corrosion and mechanical impact. The expanded synthesis gas is then burnt under pressure and the combustion is used in a combined-cycle process using a gas turbine, steam generator and steam turbine for generating power. The process thus has an increased efficiency. Apparatus for use of the process is also described.

Abstract: This invention discloses systems and methods for control of a gas turbine or a gas turbine generator, where the gas turbine is connected to a dryer vessel in which gas turbine exhaust gases are used to heat treat a material in the dryer vessel. The control system comprises one or more sensors for temperature, moisture and/or flow rate in the dryer vessel and/or of the material inside, entering and/or exiting the dryer vessel and a controller responsive to the sensor for controlling the fuel and/or air flow into the gas turbine. This control system and method enables providing the appropriate heat output from the gas turbine to meet the process heat required for the desired material treatment. Optionally, the gas turbine can be a liquid fuel turbine engine, or a reciprocating engine can be substituted for the turbine engine.

Abstract: A system for power generation comprises an engine operative to output an exhaust gas, a carbon capture means operative to remove carbon dioxide (CO2) from the exhaust gas and output the CO2, and a compressor operative to receive the CO2 and output compressed CO2 that cools a component of the engine.

Abstract: A protocol for assembling a fuel shut off pin valve assembly for a gas turbine engine. The protocol outlines a specific sequence of events in order to ensure failsafe incorporation of a fuel shut off valve assembly within the low pressure turbine area and specifically within the engine casing of the gas turbine.

Abstract: A power generation system having an exhaust gas attemperating device and method for controlling a temperature of exhaust gases is provided. The exhaust gas attemperating device includes a first conduit and a venturi member. The first conduit is configured to receive at least a portion of exhaust gases from a gas turbine. The venturi member is disposed in the first conduit and defines a flow path therethrough for receiving the exhaust gases in the first conduit. The first conduit and the venturi member have an aperture extending therethrough communicating with the flow path, such that the exhaust gases flowing through the flow path draws ambient air through the aperture into the flow path for reducing a temperature of the exhaust gases flowing through the first conduit.

Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes integrated pressure maintenance and miscible flood systems with low emission power generation. An alternative system provides for low emission power generation, carbon sequestration, enhanced oil recovery (EOR), or carbon dioxide sales using a hot gas expander and external combustor. Another alternative system provides for low emission power generation using a gas power turbine to compress air in the inlet compressor and generate power using hot carbon dioxide laden gas in the expander. Other efficiencies may be gained by incorporating heat cross-exchange, a desalination plant, co-generation, and other features.

Abstract: An oxy-combustor is provided to combust oxygen with gaseous low heating value fuel. A compressor upstream of the combustor compresses the fuel. The combustor produces a drive gas including steam and carbon dioxide as well as other non-condensable gases in many cases, which pass through a turbine to output power. The drive gas can be recirculated to the combustor, either through the compressor, the oxygen inlet or directly to the combustor. Recirculation can occur before or after a condenser for separation of a portion of the water from the carbon dioxide. Excess carbon dioxide and steam is collected from the system. The turbine, combustor and compressor can be derived from an existing gas turbine with fuel and air/oxidizer lines swapped.

Abstract: A method and system for an integrated ejector valve assembly is provided. The integrated ejector valve assembly includes a first valve assembly configured to control a flow of relatively lower pressure fluid from a first inlet port, a second valve assembly configured to control a flow of relatively higher pressure fluid from a second inlet port, a first actuation chamber configured to close the first valve assembly, a second actuation chamber configured to close the second valve assembly, and a third actuation chamber configured to open the second valve assembly.

Abstract: A gas turbine engine includes a main compressor section for compressing air, a main combustor section positioned downstream of the main compressor section, a main turbine section positioned downstream of the main combustor section, and a spool extending from the main compressor section to the main turbine section. A second turbine is fluidically connected to the main compressor section by a bleed passage. An electrical generator is mechanically driven by both the spool and the second turbine.