Gas turbine engine fuel control using gas measurement at the air inlet

摘要

A gas turbine engine is provided. The gas turbine engine includes an air inlet, a combustor, an exhaust and first and second measurement devices. A plurality of fuel supply lines is provided to the at least one combustor. The first measurement device measures an amount of a gas in the air inlet. The second measurement device measures an amount of the gas in the exhaust. A control unit varies the fuel supply in the plurality of fuel supply lines so as to control the amount of the gas in the exhaust. The variation is made in dependence upon both the measured amount of the gas in the air inlet and the measured amount of the gas in the exhaust.

主权项

1. An apparatus comprising:
a gas turbine engine comprising:
an air inlet;a first measurement device that measures an amount of a gas in the air inlet;at least one combustor;a plurality of fuel supply lines to the at least one combustor;an exhaust;a second measurement device that measures an amount of the gas in the exhaust; anda control unit operatively coupled to the first and second measurement devices and to the plurality of fuel supply lines via one or more fuel split valves, the control unit configured to vary a quantity of the fuel supply in the plurality of fuel supply lines so as to control the amount of the gas in the exhaust, the variation of the quantity of the fuel supply being made in dependence upon both the measured amount of the gas in the air inlet and the measured amount of the gas in the exhaust.