Valerie S. Vernet - Inman SC, US Michael J. Alexander - Simpsonville SC, US John C. Maters - Liberty SC, US Kelly M. Graf - Greer SC, US Jason D. Fuller - Simpsonville SC, US
International Classification:
F02C 7/26
US Classification:
60778
Abstract:
The present invention has the technical effect of reducing the start-up time associated with starting a powerplant machine. An embodiment of the present invention provides a method of starting a powerplant machine, such as, but not limiting of, a turbomachine. An embodiment of the method of the present invention provides a new philosophy for starting a turbomachine. This new philosophy involves testing the turbomachine systems before the start-up process begins.
System And Method For Protection Of Gas Turbine Hot Gas Path And Rotor Parts From Thermal Distress
Valerie Suzanne VERNET - Inman SC, US Michael James FEDOR - Simpsonville SC, US
Assignee:
GENERAL ELECTRIC COMPANY - Schenectady NY
International Classification:
G06F 1/26
US Classification:
700287
Abstract:
A system for operating a gas turbine includes a controller configured to: receive input from a plurality of sensors that sense parameters of the gas turbine during operation; run a first model of the operation of the gas turbine from one or more of the parameters; determine one or more unmeasured variables of the operation from the first model; run a second model of process variables from one or more of the sensed parameters and one or more of the unmeasured variables; determine differences between the process variables and associated boundaries; and adjust one or more effectors of the gas turbine to maintain a predetermined margin between the process variables and hardware physical limits.
Systems And Methods For Extended Emissions Compliant Operation Of A Gas Turbine Engine
- Schenectady NY, US Valerie Suzanne Vernet - Inman SC, US Jason Nathaniel Cook - Greenville SC, US Jayaprakash Natarajan - Greer SC, US
International Classification:
F02C 3/20
Abstract:
A method of operating a rotary machine below a minimum emissions compliance load in a response mode includes reducing a fuel split to zero. The fuel split apportions a total flow of fuel to the combustor between a first combustion zone and a second combustion zone. The method also includes determining a current operating temperature of the first combustion zone using a digital simulation of the rotary machine. The method further includes determining a target operating temperature of the first combustion zone. The target operating temperature enables the rotary machine to operate below a traditional Minimum Emissions Compliance Load (MECL) while still in compliance with emissions standards. The method also includes channeling a first flow of fuel to the first combustion zone. The first flow of fuel decreases the temperature of the first combustion zone to the target operating temperature.