Operation method for gas turbine and control device for gas turbine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsHiroaki Nagahashi, Akinori Hayashi, Hiromi Koizumi, Tomo Kawakami
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Abstract
An operation method for a gas turbine according to at least one embodiment of the present disclosure is an operation method for a gas turbine, including: a step of increasing a co-firing ratio of first fuel the co-firing ratio of which is to be increased and second fuel different from the first fuel. The step of increasing the co-firing ratio includes changing at least either of a turbine inlet temperature or a change rate of the co-firing ratio based on information regarding a relationship between the turbine inlet temperature and the co-firing ratio.
Claims20
An operation method for a gas turbine, comprising:
- a step of increasing a co-firing ratio of first fuel supplied from a first fuel supply source, the co-firing ratio of which is to be increased and second fuel supplied from a second fuel supply source different from the first fuel supply source and including fuel component different from the first fuel,
- wherein the step of increasing the co-firing ratio includes changing at least either of a turbine inlet temperature or a change rate of the co-firing ratio based on information regarding a relationship between the turbine inlet temperature and the co-firing ratio.
An operation method for a gas turbine, comprising:
- a step of increasing a co-firing ratio of first fuel supplied from a first supply source, the co-firing ratio of which is to be increased and second fuel supplied from a second fuel supply source different from the first fuel supply source and including fuel component different from the first fuel,
- wherein the gas turbine includes a sensor for detecting unburned fuel of the first fuel in a combustion gas, and
- wherein the step of increasing the co-firing ratio includes changing at least either of a turbine inlet temperature or a change rate of the co-firing ratio, if it is determined that a concentration of the unburned fuel of the first fuel in the combustion gas, which is detected by the sensor, has increased, based on the concentration.
A control device for a gas turbine, comprising:
- a co-firing ratio control unit configured to increase a co-firing ratio of first fuel supplied from a first fuel supply source, the co-firing ratio of which is to be increased and second fuel supplied from a second fuel supply source different from the first fuel supply source and including fuel component different from the first fuel,
- wherein the co-firing ratio control unit is configured to change at least either of a turbine inlet temperature or a change rate of the co-firing ratio based on information regarding a relationship between the turbine inlet temperature and the co-firing ratio, when the co-firing ratio is increased.
Dependencies are inferred from the claim text.