초록 ▼

An operating system includes a fuel and control sub-system which includes a main gas circuit, a start gas circuit, a dual fuel nozzle, and a plurality of metering valves. The fuel and control sub-system is configured to transition the operation of the engine from operating with a start gas having a

An operating system includes a fuel and control sub-system which includes a main gas circuit, a start gas circuit, a dual fuel nozzle, and a plurality of metering valves. The fuel and control sub-system is configured to transition the operation of the engine from operating with a start gas having a high heating value to using a main gas having a low heating value. The sub-system is further configured to inject water into the gas turbine and permits a user to adjust an overall fuel heating value to improve flammability limits and avoid regions of combustor acoustics.

대표청구항 ▼

1. A method for delivering fuel through an operating system to a gas turbine engine, the operating system including a fuel sub-system including a main gas circuit and a start gas circuit, the fuel sub-system configured to deliver a first fuel and a second fuel to the gas turbine, and a control sub-s

1. A method for delivering fuel through an operating system to a gas turbine engine, the operating system including a fuel sub-system including a main gas circuit and a start gas circuit, the fuel sub-system configured to deliver a first fuel and a second fuel to the gas turbine, and a control sub-system including a plurality of metering valves, the control sub-system for controlling the fuel sub-system, said method comprising the steps of:supplying a fuel through a block valve to the main gas circuit and through a block valve to the start gas circuit; using the control sub-system to direct the fuel from the fuel sub-system to the gas turbine engine through a plurality of metering valves; and using the control sub-system to direct fuel from the main gas circuit through a purge line including a block valve to the start gas circuit to prevent hot combustion gas ingestion between the main and start gas circuits.