| 摘要 |
PURPOSE:To improve efficiency in an ordinary operation, by feedback-controlling the opening of nozzle of the turbine to keep the system backpressure constant. CONSTITUTION:In an ordinary operation, the discharge pressure of the compressor 3b is controlled to keep constant by the burning control of the auxiliary furnace 27, and energy loss is restricted to minimum as far as the turbine power is not lost. Moreover, in a ordinary operation, when the system backpressure is going to change owing to a change of ambient conditions including temperature, the opening of nozzle 3c of the turbine 3a is adjusted in a feedback control, the system backpressure being maintained constant. |
