Method of tuning individual combustion chambers in a turbine based on a combustion chamber stratification index
AssigneeGeneral Electric Company
InventorsAvinash Vinayak Taware, Vasanth Srinivasa Kothnur, Ajai Singh, Bruce Gordon Norman, Jian Zhou
Life of this patent
Estimating the term…
Abstract
A method, system and software for reducing combustion chamber to chamber variation in a multiple-combustion chamber turbine system comprising sensing dynamic combustion pressure tones emitted from combustion chambers in a multiple combustion chamber turbine and determining a combustion chamber stratification index for the combustion chambers from the dynamic combustion pressure tones emitted for the combustion chambers to record and/or tune combustion chamber performance variations in the multiple-chamber combustion turbine system.
Claims17
A method for reducing combustion chamber to chamber variation in a multiple-combustion chamber turbine system comprising:
- sensing dynamic combustion pressure tones emitted from combustion chambers in a multiple combustion chamber turbine;
- determining a combustion chamber stratification index for the combustion chambers from the dynamic combustion pressure tones emitted for the combustion chambers to record combustion chamber performance variations in the multiple-chamber combustion turbine system;
- and
- reducing combustion chamber performance variations by tuning a fuel supply and/or fuel split to at least one selected combustion chamber subject to constraints wherein the combustion chamber stratification index is used to identify the at least one selected combustion chamber to be tuned.
A method for reducing combustion chamber to chamber variation in a multiple-combustion chamber turbine system comprising:
- sensing dynamic combustion pressure tones emitted from combustion chambers in a multiple combustion chamber turbine;
- determining a combustion chamber stratification index for the combustion chambers from the dynamic combustion pressure tones emitted for the combustion chambers to record combustion chamber performance variations in the multiple-chamber combustion turbine system;
- and
- reducing combustion chamber performance variations by tuning a fuel supply and/or fuel split using a control system driving flow trim devices that are unique to each combustion chamber in a fuel supply path to the combustion chamber, to at least one selected combustion chamber subject to constraints wherein the combustion chamber stratification index is used to identify the at least one selected combustion chamber to be tuned.
Dependencies are inferred from the claim text.