Abstract
Monitoring of OH chemiluminescence through an optical fiber was demonstrated to be a useful method in detecting self-excited combustion oscillations. OH chemiluminescence intensity detected by the optical fiber showed mostly excellent agreement with those obtained by high speed CCD camera measurements when combustion oscillations were strong. Symptoms of self-excited combustion oscillation were also studied in order to predict the onset of combustion oscillation before it proceeded to a catastrophic failure. For the purpose, we have found and proposed unique measures to tell the onset of self-excited combustion oscillations based on the careful statistics of fluctuating properties in flames, such as pressure or emission of OH radicals.
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Yang, YJ., Akamatsu, F., Katsuki, M. et al. Symptoms of self-excited combustion oscillation and their detection. KSME International Journal 18, 1859–1868 (2004). https://doi.org/10.1007/BF02984334
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DOI: https://doi.org/10.1007/BF02984334