SYSTEMS AND METHODS FOR BULK TEMPERATURE VARIATION REDUCTION OF A GAS TURBINE THROUGH CAN-TO-CAN FUEL TEMPERATURE MODULATION
First Claim
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1. A gas turbine, comprising:
- a plurality of combustion chambers;
at least one fuel nozzle for each of the combustion chambers;
at least one fuel line for each fuel nozzle in each of the combustion chambers;
at least one heat exchanger for each fuel line configured to adjust a temperature and an amount of a fuel flow to each fuel nozzle; and
a controller configured to control each of the heat exchangers to reduce temperature variations amongst the combustion chambers.
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Abstract
A gas turbine includes a plurality of combustion chambers; at least one fuel nozzle for each of the combustion chambers; at least one fuel line for each fuel nozzle in each of the combustion chambers; at least one heat exchanger for each fuel line configured to adjust a temperature of a fuel flow to each fuel nozzle; and a controller configured to control each of the heat exchangers to reduce temperature variations amongst the combustion chambers.
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Citations
19 Claims
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1. A gas turbine, comprising:
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a plurality of combustion chambers; at least one fuel nozzle for each of the combustion chambers; at least one fuel line for each fuel nozzle in each of the combustion chambers; at least one heat exchanger for each fuel line configured to adjust a temperature and an amount of a fuel flow to each fuel nozzle; and a controller configured to control each of the heat exchangers to reduce temperature variations amongst the combustion chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of controlling fuel flow to individual combustion chambers of a gas turbine, comprising:
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measuring exhaust gas temperatures and/or emission levels at a plurality of exhaust regions of the gas turbine; correlating one of the measured exhaust gas temperatures and/or emission levels to fuel flow to individual combustion chambers; and adjusting a temperature and an amount of the fuel flow to each individual combustion chamber to reduce a temperature level variation and/ or an emission level variation of each combustion chamber from an average temperature level and/or an average emission level. - View Dependent Claims (16, 17)
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18. A method of controlling fuel flow to individual combustion chambers of a gas turbine, comprising:
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determining a cold tone for each combustion chamber; correlating the cold tone of each combustion chamber to a fuel flow to each combustion chamber; and adjusting a temperature and an amount of the fuel flow to each combustion chamber to reduce a cold tone deviation of each combustion chamber from an average cold tone of the gas turbine. - View Dependent Claims (19)
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Specification