Abstract: A distributed control system receives analysis data. The analysis data includes quality attributes of fluid samples and an indication of a plant location corresponding to the fluid samples. The system identifies one or more anomalies of fluid based upon the quality attributes of the plurality of fluid samples and attributes the one or more anomalies to one or more particular areas. The system triggers an alert, trigger control, or both, based at least in part upon the identified one or more anomalies and the attributed one or more particular areas.

Abstract: A plant-integrated measurement and monitoring system includes one or more sampling ports disposed throughout to provide fuel samples at key locations in the plant. Additional sampling ports are included to provide samples of water, lube oil or other fluids. Each fuel sample is analyzed in an automated analyzer that determines a presence of contaminants. Results of the analysis are interpreted by the plant control system to determine quality attributes of the fuel samples and identify locations and/or causes of identified anomalies. The control system further issues alerts or actions to limit an impact of the identified anomalies.

Abstract: A plant-integrated measurement and monitoring system includes one or more sampling ports disposed throughout to provide fuel samples at key locations in the plant. Additional sampling ports are included to provide samples of water, lube oil or other fluids. Each fuel sample is analyzed in an automated analyzer that determines a presence of contaminants. Results of the analysis are interpreted by the plant control system to determine quality attributes of the fuel samples and identify locations and/or causes of identified anomalies. The control system further issues alerts or actions to limit an impact of the identified anomalies.

Abstract: A distributed control system receives analysis data. The analysis data includes quality attributes of fluid samples and an indication of a plant location corresponding to the fluid samples. The system identifies one or more anomalies of fluid based upon the quality attributes of the plurality of fluid samples and attributes the one or more anomalies to one or more particular areas. The system triggers an alert, trigger control, or both, based at least in part upon the identified one or more anomalies and the attributed one or more particular areas.

Abstract: Various embodiments include a system having: a computing device configured to monitor a gas turbine (GT) by: determining a moisture content and/or an oxygen content of inlet air entering the inlet of the GT compressor section; determining a corresponding one of the moisture content and/or the oxygen content of exhaust gas from the GT turbine section; calculating a flow rate of the exhaust gas from the turbine section and a flow rate of the inlet air entering the inlet of the compressor section based upon the moisture content and/or the oxygen content of the inlet air and the exhaust gas; and calculating a temperature of the exhaust gas and an energy of the exhaust gas from the turbine section based upon the flow rate of the exhaust gas from the turbine and the flow rate of the inlet air entering the inlet of the compressor section.

Abstract: According to various embodiments, a system includes a gasification fuel injector. The gasification fuel injector includes a tip portion, an annular coolant chamber disposed in the tip portion, a recessed surface for cooling control and a first structural support extending through the annular coolant chamber. The first structural support divides the annular coolant chamber into a first passage and a second passage.

Abstract: A system, includes an emissions reduction system, including a catalyst system comprising an oxidation catalyst assembly and a selective catalytic reduction catalyst assembly. The system includes a diesel particulate fuel assembly, a first and a second sensor upstream of the catalyst system configured to measure emissions of the exhaust flow of the gas engine and a gas turbine before flowing into the catalyst system to generate a first and a second signal. A third sensor is downstream of the catalyst system to measure emissions of the catalyst system to generate a third signal, and a fourth and a fifth sensor disposed upstream and downstream of the DPF assembly to measure a change in pressure to generate a fourth signal and a controller to generate a first control signal to control an amount of reductant based on at least the first, second, and third signals.

Abstract: A system, includes an emissions reduction system, including a catalyst system comprising an oxidation catalyst assembly and a selective catalytic reduction catalyst assembly. The system includes a diesel particulate fuel assembly, a first and a second sensor upstream of the catalyst system configured to measure emissions of the exhaust flow of the gas engine and a gas turbine before flowing into the catalyst system to generate a first and a second signal. A third sensor is downstream of the catalyst system to measure emissions of the catalyst system to generate a third signal, and a fourth and a fifth sensor disposed upstream and downstream of the DPF assembly to measure a change in pressure to generate a fourth signal and a controller to generate a first control signal to control an amount of reductant based on at least the first, second, and third signals.

Abstract: A system includes a nitrous oxide (NOx) conversion system configured to treat emissions from a conversion system, and includes a selective catalytic reduction (SCR) catalyst assembly and a temperature sensor disposed upstream of the SCR catalyst assembly to measure temperature of an exhaust before flowing into the SCR catalyst assembly. The NOx conversion system includes a temperature sensor downstream of the SCR catalyst assembly to measure a temperature of a treated exhaust flow after exiting the SCR catalyst assembly and a controller coupled to the SCR catalyst assembly. The controller receives signals representative of the temperatures to generate a first control signal representative of a desired temperature to heat the exhaust to. The controller receives the first control signal to output a second control signal to regulate a temperature of the exhaust upstream of the SCR catalyst assembly via a heating system.

Abstract: Various embodiments include a system having: a computing device configured to monitor a gas turbine (GT) by: determining a moisture content and/or an oxygen content of inlet air entering the inlet of the GT compressor section; determining a corresponding one of the moisture content and/or the oxygen content of exhaust gas from the GT turbine section; calculating a flow rate of the exhaust gas from the turbine section and a flow rate of the inlet air entering the inlet of the compressor section based upon the moisture content and/or the oxygen content of the inlet air and the exhaust gas; and calculating a temperature of the exhaust gas and an energy of the exhaust gas from the turbine section based upon the flow rate of the exhaust gas from the turbine and the flow rate of the inlet air entering the inlet of the compressor section.

Abstract: A system includes a gasification fuel injector, which includes a first fuel conduit configured to inject a first fuel flow from a first fuel tip, a second fuel conduit configured to inject a second fuel flow from a second fuel tip, a first gas conduit configured to inject a first gas flow from a first gas tip, a second gas conduit configured to inject a second gas flow from a second gas tip, and a third gas conduit configured to inject a third gas flow from a third gas tip. At least one of the first fuel tip, the second fuel tip, the first gas tip, the second gas tip, or the third gas tip is recessed a distance away from an outlet of the gasification fuel injector. The first and second fuel conduits and the first, second, and third gas conduits are coaxial with one another.

Abstract: A gasification quench chamber is disclosed. The gasification quench chamber includes a reservoir that contains liquid coolant in its lower portion and an exit for the cooled syngas in its upper portion; a dip tube that is configured to introduce a syngas mixture to contact the liquid coolant which produces the cooled syngas; a cooling device configured to further cool the cooled syngas in its upper portion; and a stability device in the lower portion that is configured to mitigate coolant level fluctuation and sloshing. In an embodiment of the quench chamber, the cooling device includes a heat exchanger pipe. A quench chamber and scrubber assembly is also disclosed.

Abstract: In one embodiment, a gasification system component, such as a quench unit or scrubber may retain of pool of a cooling fluid for cooling another fluid. The gasification system component includes a flow damping mechanism designed to dampen flow of the cooling fluid, the other fluid, or both, within the gasification system component. The flow damping mechanism may be disposed in an inner chamber formed between a dip tube and a draft tube or disposed in an outer chamber formed between the walls of the gasification system component and the draft tube. The flow damping mechanism also may be disposed between the inner chamber and the outer chamber.

Abstract: An injector includes a surface and an injector hole formed in the surface. The injector also includes a groove formed in the surface, the groove surrounding the injector hole.

Abstract: In certain embodiments, a system includes a first water supply pump configured to pump water from a gas scrubber sump of a gas scrubber directly to a quench chamber sump of a quench chamber via a first water supply line.

Abstract: A system, including a turbine fluid supply system, including a fuel supply assembly, including a first fuel supply configured to supply a first fuel to a gas turbine engine; and a second fuel supply configured to supply a second fuel to the gas turbine engine, wherein the first fuel has a greater carbon content than the second fuel, and a diluent supply assembly comprising at least one diluent supply configured to supply at least one diluent to the gas turbine engine; and a controller having instructions to control the first fuel supply, the second fuel supply, or the at least one diluent supply to adjust a percentage of carbon in a combustor of the gas turbine engine to maintain a ratio of carbonaceous emissions in an exhaust gas per unit of energy produced by the gas turbine engine at or below a threshold ratio.

Abstract: A method and apparatus to determine a first heating value of a low BTU fuel, determine a target fuel quality level based on a state of a turbine system, control a second heating value of a high BTU fuel, and inject the high BTU fuel into the low BTU fuel to achieve the target fuel quality level.

Abstract: A method and systems for a purged seal for an annular space are provided. The purged seal includes a first baffle element that extends from an inner surface of the annular space into the annular space at an oblique angle and a second baffle element that extends from an outer surface of the annular space above the first baffle element in a direction opposite gravity flow into the annular space wherein the second baffle element extends at an oblique angle. The system also includes a third baffle element that extends from the inner surface above the first baffle element in a direction of gravity flow into the annular space wherein the third baffle element extends into the annular space at an oblique angle with respect to the inner surface and wherein a distal end of the third baffle element is positioned proximate a distal end of the second baffle element.

Abstract: Disclosed is a fuel nozzle for a combustor of a gas turbine engine includes a nozzle inlet, a combustion area and a swirler disposed between the nozzle inlet and combustion area. The swirler includes a plurality of swirler vanes, each swirler vane capable of creating a pressure difference in fluid flow through the swirler between a pressure side and suction side of the swirler vane. The swirler further includes at least one through airflow hole located in at least one swirler vane of the plurality of swirler vanes. The at least one through airflow hole is capable of utilizing the pressure difference between the pressure side and suction side to promote fluid flow through the at least one airflow hole. Also disclosed is a method for operating a combustor.

Abstract: A combustor includes a first flow path and a second flow path. The first flow path places a diffuser in indirect fluid communication with a combustor cap assembly by way of an intervening lower combustor annular passageway. The second flow path places the diffuser in direct fluid communication with the combustor cap assembly.