Abstract： Based on the premixed laminar flame velocity model in Chemkin4.5, the initial combustion conditions were regulated to investigate the structure of shale gas laminar flame. For burned shale gas, the effects of initial temperature, initial pressure and nitrogen dilution on shale gas reactants, product and mole fraction of free radicals were discussed to analyze the variation of H+OH mole fraction peak and adiabatic flame temperature. The results indicate that with the increasing of initial temperature, the combustion reaction speed is increased with increased H+OH mole fraction peak, and the premixed laminar burning speed of shale gas increases. The premixed combustion reaction is exacerbated with the increasing of initial pressure, while the mole fraction of free radicals is decreased. Because the increased reaction rate is less than the increased density, the flame propagation speed is declined. When the initial pressure increases, the adiabatic flame temperature is raised due to the diminished pyrolysis reaction. With the increasing of nitrogen dilution, airfuel ratio is increased with declined reactant mole fraction, product and free radical, and the combustion reaction slows down.
刘帅, 王忠, 李铭迪, 赵洋, 李瑞娜. 不同初始条件下页岩气层流燃烧火焰结构分析[J]. 江苏大学学报（自然科学版）, 2014, 35(5): 497-502.
Liu Shuai, Wang Zhong, Li Mingdi, Zhao Yang, Li Ruina. Flame structure analysis of shale gas under different initial conditions[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2014, 35(5): 497-502.
2014, Vol. 35 
