GAS TURBINE DEVICE AND ITS BLEEDING OPERATION METHOD

摘要

PROBLEM TO BE SOLVED: To suppress the fluctuation of pressure in an external installation as an air supply destination in the process of change-over into bleed air from the outlet of a gas turbine compressor. SOLUTION: A compressor outlet pressure gauge 50 measures a compressor outlet pressure P2 and a gas turbine exhaust gas temperature gauge 52 measures a gas turbine outlet temperature T4. A turbine inlet mass flow rate is calculated after required bleeding. Then, a fuel flow control valve 35 controls a fuel flow rate and an inlet guide blade 1 controls a compressor inlet air mass flow rate. Thereby, bleeding is allowed corresponding to a flow rate and pressure required by the external installation. COPYRIGHT: (C)2005,JPO&NCIPI