Method and system for temperature estimation of gas turbine combustion cans
First Claim
1. A method for estimating a temperature profile for individual combustion cans at an inlet of a gas turbine, the method comprising:
- determining an exhaust temperature profile of exhaust gas of the gas turbine; and
inputting said exhaust temperature profile into a model-based estimator of turbine components through which turbine gas flows;
wherein said model-based estimator calculates an estimated inlet temperature profile at the gas turbine inlet, based upon said exhaust temperature profile and design parameters of the gas turbine, said estimate inlet temperature profile being indicative of the actual firing temperature of each of the individual combustion cans.
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Abstract
A method for estimating a temperature profile for individual combustion cans at an inlet of a gas turbine is disclosed. In an exemplary embodiment, the method includes determining an exhaust temperature profile of exhaust gas of the gas turbine, and inputting the exhaust temperature profile into a model-based estimator of turbine components through which turbine gas flows. The model-based estimator calculates an estimated inlet temperature profile at the gas turbine inlet, based upon the exhaust temperature profile and design parameters of the gas turbine, the estimate inlet temperature profile being indicative of the actual firing temperature of each of the individual combustion cans.
21 Citations
20 Claims
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1. A method for estimating a temperature profile for individual combustion cans at an inlet of a gas turbine, the method comprising:
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determining an exhaust temperature profile of exhaust gas of the gas turbine; and
inputting said exhaust temperature profile into a model-based estimator of turbine components through which turbine gas flows;
wherein said model-based estimator calculates an estimated inlet temperature profile at the gas turbine inlet, based upon said exhaust temperature profile and design parameters of the gas turbine, said estimate inlet temperature profile being indicative of the actual firing temperature of each of the individual combustion cans. - View Dependent Claims (2, 3, 4, 5)
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6. A method for estimating a temperature profile for individual combustion cans at an inlet of a gas turbine, the method comprising:
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obtaining exhaust temperature data from exhaust of the gas turbine;
normalizing said exhaust temperature data to a reference load condition to obtain a normalized exhaust temperature profile;
inputting said normalized exhaust temperature profile into a model-based estimator of turbine components through which turbine gas flows;
wherein said model-based estimator calculates an estimated inlet temperature profile at the gas turbine inlet, based upon said normalized exhaust temperature profile and design parameters of the gas turbine, said estimate inlet temperature profile being indicative of the actual firing temperature of each of the individual combustion cans. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A system for estimating a temperature profile for individual combustion cans disposed at an inlet of a gas turbine, comprising:
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a plurality of exhaust temperature sensing devices disposed proximate exhaust gas of the gas turbine;
a normalization mechanism for receiving exhaust temperature data from said plurality of exhaust temperature sensing devices, said normalization mechanism producing a normalized exhaust temperature profile with respect to a reference load condition;
a model-based estimator of turbine components through which turbine gas flows, said model-based estimator receiving said normalized exhaust temperature profile;
wherein said model-based estimator calculates an estimated inlet temperature profile at the gas turbine inlet, based upon said normalized exhaust temperature profile and design parameters of the gas turbine, said estimate inlet temperature profile being indicative of the actual firing temperature of each of the individual combustion cans. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A storage medium, comprising:
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a machine readable computer program code for estimating a temperature profile for individual combustion cans at an inlet of a gas turbine; and
instructions for causing a computer to implement a method, the method further comprising;
obtaining exhaust temperature data from exhaust of the gas turbine;
normalizing said exhaust temperature data to a reference load condition to obtain a normalized exhaust temperature profile;
inputting said normalized exhaust temperature profile into a model-based estimator of turbine components through which turbine gas flows;
wherein said model-based estimator calculates an estimated inlet temperature profile at the gas turbine inlet, based upon said normalized exhaust temperature profile and design parameters of the gas turbine, said estimate inlet temperature profile being indicative of the actual firing temperature of each of the individual combustion cans.
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Specification