摘要:
A heat recovery steam generator (HRSG) is coupled to a gas turbine engine that discharges a flow of exhaust gases including oxides of nitrogen (NOx). The HRSG includes a steam-based heating element for heating the exhaust gases, and at least one NOx reduction element coupled downstream from the at least one steam-based heating element and configured to facilitate reducing an amount of NOx in the exhaust gases that are channeled into the at least one NOx reduction element.
摘要:
A flame detector in photonic communication with a no-flame region of a combustor of a gas turbine may emit a signal when a photon is detected. A controller may be arranged to receive a signal from the flame detector and may determine whether a flame presence in the no-flame region is indicated responsive to the signal.
摘要:
A method for assembling a rotary machine includes providing at least one combustor assembly that includes at least one fuel nozzle. The method also includes coupling at least one fuel source to the at least one combustor assembly. The method further includes coupling at least one solvent-based purge system in flow communication with the at least one combustor assembly.
摘要:
The present application provides for a combustor for use with a gas turbine engine. The combustor may include a cap member and a number of fuel nozzles extending through the cap member. One or more of the fuel nozzles may be provided in a non-flush position with respect to the cap member.
摘要:
A turbine to detect a flame holding event includes a combustion section to receive a fluid from a compressor, to heat the fluid by combusting a fuel to generate heat, and to output the heated fluid to a turbine section. The combustion section includes a combustor having a combustion chamber in which the fuel is combusted, and the combustion section having a sensor to sense a static pressure within the combustion chamber. A combustion control device detects a flame holding event in the combustion chamber based only on the sensed static pressure.
摘要:
A system includes a gas production source configured to produce a gas stream comprising nitrogen oxides (NOx) and a hydrocarbon injector disposed downstream of the gas production source and configured to inject a hydrocarbon into the gas stream. The hydrocarbon is configured to oxidize molecules of the NOx in the gas stream to produce a higher order compound of nitrogen and oxygen (NyOz). The system also includes a removal device disposed downstream of the hydrocarbon injector. The removal device is configured to remove the NyOz from the gas stream via absorption or reaction.
摘要:
A system for detecting defects in a turbine rotor blade of a combustion turbine engine. The system may include: a turbine rotor blade that includes an insulator coating; a first electrode that is electrically connected to the turbine rotor blade; a second electrode that resides in proximity to the turbine rotor blade; means for inducing a voltage across the first electrode and the second electrode; and means for detecting current flowing between the first electrode and the second electrode.
摘要:
A method for detecting defects in a combustion duct in a combustion system of a turbine engine while the turbine engine operates, wherein the combustion duct comprises an inner surface, which, during operation, is exposed to the hot-gas flowpath, the method comprising the steps of: providing a first electrode that is electrically connected to the combustion duct; providing a second electrode that resides within the hot-gas flowpath; applying a voltage across the first electrode and the second electrode; and detecting current flowing between the first electrode and the second electrode.
摘要:
A method for assembling a rotary machine includes providing at least one combustor assembly that includes at least one fuel nozzle. The method also includes coupling at least one fuel source to the at least one combustor assembly. The method further includes coupling at least one solvent-based purge system in flow communication with the at least one combustor assembly.
摘要:
An ignition system for a combustor includes an access port through a wall of the combustor and a laser outside the combustor and aligned with the access port to generate a beam along a path. A lens in the path of the beam focuses the beam at a focal point inside the combustor, and a shutter has a first position in the path and a second position out of the path. A method for igniting a combustor includes generating a beam along a path, focusing the beam to a focal point inside the combustor, and moving a shutter from a first position in the path to a second position outside of the path.