含水乙醇重整混合气层流燃烧的实验研究

Experimental Study on Laminar Combustion of Hydrous-ethanol Reforming Mixtures

利用纹影高速摄影技术,在定容燃烧弹内模拟研究了不同过量空气系数、不同成分含水乙醇重整混合气的层流燃烧特性参数,并利用CHEMKIN软件模拟计算了重整混合气的绝热火焰温度。结果表明,模拟重整混合气的层流传播速度随过量空气系数的增大而减小,随混合气中氢含量比例的增加而增加;重整混合气燃烧会降低NO、CO的排放。

The laminar combustion characteristics of hydrous-ethanol reforming fuel mixtures were studied at different excess air ratio by using high-speed schlieren photography technique in a constant volume combustion bomb,and adiabatic flame temperatures of reforming fuel mixtures were calculated by CHEMKIN software.The results show that laminar spread velocity of simulated reforming mixtures decrease with the increase of excess air ratio,and increasing of hydrogen fraction increase laminar burning velocity;the combustion of reforming fuel mixtures will reduce emissions of NO and CO.