| 摘要 |
PROBLEM TO BE SOLVED: To start a combination plant having a common continuous shaft as a single axis device at a low cost and simply. SOLUTION: A steam turbine 5 is started by external steam 33 introduced into the steam turbine, gas turbines 2, 3 are started by the steam turbine 5, medium calorie or high calorie additional fuel 21 is ignited in a combustion chamber 2, a continuous shaft 10 is accelerated to the rated rotating speed, and the power required for compressing low calorie fuel 12 in a fuel compressor 4 is generated by the additional fuel and the external steam. When sufficient pressure is generated in the fuel compressor 4, switching from the additional fuel to the low calorie fuel is performed.
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