| 摘要 |
A micro turbine 10 has a recuperator 20. During startup, an alternator 26 acts as a motor to turn the turbine rotor 32 and compressor rotor 34 of gas turbine 40. The speed of the gas turbine 40 and a fuel control valve 42 are controlled in order to prevent the rate of change of temperature, sensed by a gas turbine exhaust sensor 74 and/ or a recuperator sensor, from exceeding a predetermined value in order to reduce thermal shock on the recuperator during startup. Reference is also made to preventing a temperature from exceeding a predetermined value during startup or shutdown, details of controlled startup and shutdown sequences also being provided, and to controlling shaft speed by means of the motor.
|
