Turbine analysis device, turbine analysis method, and program
AssigneeMitsubishi Power, Ltd.
InventorsToru Tanaka, Akihisa Endo, Yusuke Hazui, Masumi Nomura
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Abstract
A turbine analysis device includes a state quantity acquiring unit configured to acquire a state quantity of a turbine, the state quantity including at least a temperature of the turbine. A load specifying unit is configured to calculate a history of a load of the turbine, based on the state quantity. A load and time calculating unit is configured to derive a relationship between the load of the turbine and an operable time when the turbine is operated at the load, based on a designed service life of the turbine and the history of the load that has been calculated by the load specifying unit.
Claims9
A turbine analysis device comprising:
- a state quantity acquiring unit configured to acquire a state quantity of a turbine, the state quantity including at least a temperature of the turbine;
- a load specifying unit configured to calculate a first Larson-Miller Parameter (LMP) value indicating a history of a load of the turbine, based on the state quantity;
- a remaining service life calculating unit configured to calculate a consumed service life based on the first LMP value calculated by the load specifying unit and the temperature of the turbine, and calculate a remaining service life of the turbine by subtracting the consumed service life from a designed service life of the turbine;
- and
- a load and time calculating unit configured to derive a relationship between the load of the turbine and an operable time in a case where the turbine operates at the load, based on a second LMP value calculated from the remaining service life and a rated temperature.
A turbine analysis method comprising:
- acquiring a state quantity of a turbine, the state quantity including at least a temperature of the turbine;
- calculating a first Larson-Miller Parameter (LMP) value indicating a history of a load of the turbine, based on the state quantity;
- calculating a consumed service life based on the first LMP value which has been calculated;
- calculating a remaining service life of the turbine by subtracting the consumed service life from a designed service life of the turbine;
- and
- deriving a relationship between the load of the turbine and an operable time in a case where the turbine operates at the load, based on a second LMP value calculated from the remaining service life and a rated temperature.
A non-transitory computer-readable computer medium storing a program that causes a computer to function as:
- a state quantity acquiring unit configured to acquire a state quantity of a turbine, the state quantity including at least a temperature of the turbine;
- a load specifying unit configured to calculate a first Larson-Miller Parameter (LMP) value indicating a history of a load of the turbine, based on the state quantity;
- a remaining service life calculating unit configured to calculate a consumed service life based on the first LMP value calculated by the load specifying unit and the temperature of the turbine, and calculate a remaining service life of the turbine by subtracting the consumed service life from a designed service life of the turbine;
- and
- a load and time calculating unit configured to derive a relationship between the load of the turbine and an operable time in a case where the turbine operates at the load, based on a second LMP value calculated from the remaining service life and a rated temperature.
Dependencies are inferred from the claim text.