HOT STREAK CONTROL OF GAS TURBINE ENGINE COMBUSTOR

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine combustion system capable of suppressing a hot streak temperature to the minimum and reducing cooling air consumption of a turbine nozzle. SOLUTION: A gas turbine engine combustion system 40 is equipped with an electronic controller 76 for controlling a plurality of fuel nozzle valves 48 which is in a one to one fuel feeding relation with the plurality of fuel nozzle valves 48. The electronic controller 76 may be used to individually control the fuel nozzle valves 48. The hot streak conditions may be sensed with temperature sensors 55 such as temperature sensors operably mounted in the combustor 10. A program in the electronic controller 76 may be used for determining broken or malfunctioning sensors 55 by calculating a combustor temperature and comparing it to measured temperatures from the sensors 55 and comparing the measured fuel pressures in individual fuel nozzle circuits 31 with the simulated or calculated fuel pressures. COPYRIGHT: (C)2007,JPO&INPIT