Abstract:
A method and system of feeding fuel into a gasifier are provided. The feed injector system includes a first injector port assembly including a plurality of annular channels substantially concentric about a longitudinal axis that define corresponding fluid flow paths that direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone and a second injector port assembly including a flow port surrounded by a plurality of auxiliary ports spaced about a circumference of the flow port, the plurality of auxiliary ports communicatively coupled to a toroidal passage configured to receive a flow of fluid and channel the flow of fluid to the auxiliary ports such that the flow of fluid is discharged from the auxiliary ports having an axial flow component, a radially inward flow component, and a circumferential flow component.
Abstract:
A system and method each utilize combustion dynamics data to monitor and assess gas turbine combustor health and performance. The system and method each employ a physics-based model to differentiate changes in the spectral features attributable to variations in the operating conditions from differences caused from changes in the hardware.
Abstract:
A feed injector system includes an injector nozzle. The injector nozzle includes a first injector port assembly having a first injector port located at a center of a longitudinal axis of the injector nozzle and defining a flow path for directing a first feed flow from a respective source into a reaction zone. The feed injector system also includes a second injector port assembly having one or more second injector passages arranged about a first circumference of the first injector port for receiving and injecting a second feed flow. Further, the feed injector system includes a third injector port assembly having a plurality of third ports arranged about a second circumference of the first injector port. The third ports are communicatively coupled to a plurality of toroidal flow paths and configured to receive and inject a third feed flow.
Abstract:
A system and method of reducing gas turbine nitric oxide emissions includes a first combustion stage configured to burn air vitiated with diluents to generate first combustion stage products. A second combustion stage is configured to burn the first combustion stage products in combination with enriched oxygen to generate second combustion stage products having a lower level of nitric oxide emissions than that achievable through combustion with vitiated air alone or through combustion staging alone.
Abstract:
A system and method of reducing gas turbine nitric oxide emissions includes a first combustion stage configured to burn air vitiated with diluents to generate first combustion stage products. A second combustion stage is configured to burn the first combustion stage products in combination with enriched oxygen to generate second combustion stage products having a lower level of nitric oxide emissions than that achievable through combustion with vitiated air alone or through combustion staging alone.
Abstract:
A method and system of feeding fuel into a gasifier are provided. The feed injector system includes a first injector port assembly including a plurality of annular channels substantially concentric about a longitudinal axis that define corresponding fluid flow paths that direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone and a second injector port assembly including a flow port surrounded by a plurality of auxiliary ports spaced about a circumference of the flow port, the plurality of auxiliary ports communicatively coupled to a toroidal passage configured to receive a flow of fluid and channel the flow of fluid to the auxiliary ports such that the flow of fluid is discharged from the auxiliary ports having an axial flow component, a radially inward flow component, and a circumferential flow component.