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Symptoms on Generation of Combustion Oscillation and their Detection  

양영준 (동아대학교 공과대학 기계공학과)
Publication Information
Journal of Energy Engineering / v.13, no.3, 2004 , pp. 205-213 More about this Journal
Abstract
Usefulness of an optical fiber was demonstrated by detecting the generation of 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 omission of OH radicals.
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