LASER-BASED FLAME SPECIES PROFILE MEASUREMENTS - A COMPARISON WITH FLAME MODEL PREDICTIONS

被引:51
作者
BERNSTEIN, JS [1 ]
FEIN, A [1 ]
CHOI, JB [1 ]
COOL, TA [1 ]
SAUSA, RC [1 ]
HOWARD, SL [1 ]
LOCKE, RJ [1 ]
MIZIOLEK, AW [1 ]
机构
[1] USA,BALLIST RES LABS,ABERDEEN PROVING GROUND,MD 21005
关键词
D O I
10.1016/0010-2180(93)90200-M
中图分类号
O414.1 [热力学];
学科分类号
摘要
Two laser-based diagnostic methods, resonance-enhanced multiphoton ionization (REMPI) and laser-induced fluorescence (LIF), were used for relative concentration measurements of seven species, O, H, OH, CH, CO, HCO, and CH3, in low pressure stoichiometric methane/oxygen, ethylene/oxygen, and ethane/oxygen premixed hydrocarbon flames. For the well-understood methane/oxygen flame, measured relative density profiles for these seven species were in good agreement with flame modeling calculations. This agreement justifies the use of the stoichiometric methane/oxygen flame as a standard of comparison by which relative density profiles, measured for other hydrocarbon flames, may be placed on an absolute density scale. This approach was applied to measurements for the ethylene/oxygen and ethane/oxygen flames. Peak HCO densities for these flames appear to be overestimated by model calculations based on current kinetic models of C1 and C2 chemistry.
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页码:85 / 105
页数:21
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