| 摘要 |
PROBLEM TO BE SOLVED: To suppress the of back-fire into a burner in a combustor for a gas turbine engine, in which fuel having faster combustion speed than that of natural gas such as hydrogen-containing fuel is combusted.SOLUTION: A fuel injection device 36 of a combustor 12 has a pilot burner 40 and a main burner 4, and the main burner 4 has at least one first fuel injection port 41a for supplying first fuel to the upstream side of a combustion chamber 35 and at least one second fuel injection port 42a for supplying second fuel to the upstream side of the combustion chamber 35. The combustor 12 comprises a control device controlling the operation of the combustor 12 in such a manner that upon start-up, the main burner 4 is combusted with a flame of the pilot burner 40 to combust the first fuel as the main fuel and when a gas turbine engine 1 reaches a predetermined rated operation condition, the fuel is changed over to the second fuel having the maximum faster combustion speed than that of the first fuel as the main fuel.SELECTED DRAWING: Figure 2 |
