과농조건인 CH4/CH3Cl 예혼합화염에서 산소부화가 PAH 생성에 미치는 효과
The Effect of the Oxygen-Enrichment on the PAH Production in Fuel-Rich CH4/CH3Cl Premixed Flames
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초록
Numerical simulations of freely propagating fuel-rich CH4/CH3Cl premixed flames were performed at atmospheric pressure in order to understand the effect of the oxygen enrichment on the production of PAH. A chemical kinetic mechanism was used, which involved 157 gas-phase species and 1693 forward reactions. The calculated flame speeds were compared with the experiments for the flames established on the equivalence ratios of 1~1.6, the results of which were in good agreement. As the level of oxygen enrichment was increased,the concentrations of one or four ring aromatic hydrocarbons were decreased. This might cause the fact that the contribution of PAH species to soot was weakened.
Abstract
Numerical simulations of freely propagating fuel-rich CH4/CH3Cl premixed flames were performed at atmospheric pressure in order to understand the effect of the oxygen enrichment on the production of PAH. A chemical kinetic mechanism was used, which involved 157 gas-phase species and 1693 forward reactions. The calculated flame speeds were compared with the experiments for the flames established on the equivalence ratios of 1~1.6, the results of which were in good agreement. As the level of oxygen enrichment was increased,the concentrations of one or four ring aromatic hydrocarbons were decreased. This might cause the fact that the contribution of PAH species to soot was weakened.
참고문헌 (17)
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