Gas Turbine Fuel Split Modeling for Acoustic Control
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Solution Overview
Problem
Gas turbine engines with three rings (A-ring, B-ring, and C-ring) face challenges in optimizing fuel split to regulate outputs like NOx, CO, and acoustics, leading to undesirable results such as excessive acoustics output due to inappropriate fuel distribution.
Innovation Solution
A method and system that utilize a controller to receive data from the engine, update models based on this data, predict outputs for various fuel splits, and select an optimal fuel split for the A-ring, B-ring, and C-ring to achieve desirable output ranges, including NOx, CO, and acoustic outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If fuel is distributed to multiple rings (A-ring, B-ring, C-ring) in a gas turbine engine, then power generation capability is improved, but control precision over emissions and acoustic output deteriorates
Solution Approach 1:
The fuel distribution system is segmented into three independent fuel rings (A-ring, B-ring, C-ring) arranged radially in the combustor. Each ring receives a separate fuel amount and can be controlled independently, allowing the system to maintain power generation capability while enabling precise control over combustion characteristics and emissions output through selective fuel distribution to different rings.
Data Source
AI summary
Systems and methods for regulating fuel at a power plant are provided. One example aspect of the present disclosure is directed to a method for regulating fuel at a power plant. The method includes receiving data from an engine. The engine includes an A-ring, a B-ring, and a C-ring. The method includes updating a plurality of models based on the received data. The method includes predicting a plurality of outputs using the plurality of models for a plurality of fuel splits. Each fuel split includes a fuel amount associated with the A-ring. Each fuel split includes a fuel amount associated with the C-ring. The method includes selecting an actual fuel split based on the plurality of outputs.