Quantification of Variation in Combustion Instability Amplitude in a Multi-Nozzle Can Combustor

  title={Quantification of Variation in Combustion Instability Amplitude in a Multi-Nozzle Can Combustor},
  author={Seth Westfall and Olivia Sekulich and Wyatt Culler and Stephen J. Peluso and Jacqueline O’Connor},
  journal={Volume 4B: Combustion, Fuels, and Emissions},
In this work, we quantify the level of variation in unstable combustion oscillation amplitudes and identify the source of this variation in a multi-nozzle can combustor. At conditions where pollutant emissions are reduced, lean-premixed combustors can undergo thermoacoustic instability when pressure and heat release rate oscillations couple. A commonly used method for suppressing instability is fuel staging, which is a method where fuel is unevenly distributed between nozzles in a multi… 
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