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http://dx.doi.org/10.15231/jksc.2013.18.2.001

Basic Experiment on the Propagation Characteristics of Premixed Flames in Narrow Annular Coaxial Quartz Tubes  

Cho, Moon Soo (중앙대학교 일반대학원)
Baek, Da Bin (중앙대학교 일반대학원)
Kim, Nam Il (중앙대학교 기계공학부)
Publication Information
Journal of the Korean Society of Combustion / v.18, no.2, 2013 , pp. 1-7 More about this Journal
Abstract
Flame stabilization characteristics of premixed flames in narrow annular coaxial tubes (NACT) were investigated experimentally. The NACT burner was proposed as a model of a cylindrical refractory burner, and it was made of quartz tubes. Flame stabilization conditions affected by the characteristic length of the burner was investigated with the variation of the equivalence ratio and the flow rates. Flame behaviors in narrow spaces could be directly observed. Conclusively, more wide flame stabilization conditions could be obtained at the case of the decreased channel scale. A flame instability, such as combustion noise was detected concerned with the flame oscillation observed at the surface of multi channel stage. Some flame propagation characteristics had complicated tendencies that may exist in practical porous-media combustors. Therefore, this NACT burner can be a basic configuration for the development of flame stabilization model in porous media combustor, and it will enhance our understanding about the behavior of flames in meso-scale combustion spaces.
Keywords
Annular coaxial tubes; Premixed flame; Flame stabilization; Porous media combustor;
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Times Cited By KSCI : 1  (Citation Analysis)
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