作　　者： ; ; ; ; ; ;

机构地区： 西安交通大学能源与动力工程学院动力工程多相流国家重点实验室

出　　处： 《工程热物理学报》 2014年第6期1248-1251,共4页

摘　　要： 利用高速纹影摄像方法结合定容燃烧弹研究了CO_2和H_2O稀释对CO/H_2/air混合气层流燃烧速度的影响,获得了不同当量比、稀释气和CO/H_2比例下合成气的层流燃烧速度。结果表明,CO_2与H_2O对合成气层流燃烧速度的影响有显著差异。总体上来说,CO_2具有更强的稀释效果。从化学反应的角度出发,CO_2与H_2O对合成气的燃烧化学反应有着截然相反的效果,CO_2抑制燃烧化学反应,而H_2O起到促进燃烧化学反应的作用。 Different effects of CO_2 and H_2O dilution on the laminar burning velocities of CO/H_2/air mixtures were investigated using the constant volume combustion bomb and high speed schlieren photograph method.Laminar burning velocities of syngas/air mixture with different equivalence,dilution and CO/H_2 ratios were obtained.The different chemical effects of CO_2 and H_2O dilution on the syngas combustion were analyzed.Results showed that significant differences exist between the dilution effect of CO_2 and H_2O on syngas combustion.CO_2 has a stronger dilution effect on laminar burning velocity compared to that of H_2O.The addition of CO_2 hinders and H_2O promotes the combustion process of syngas.

关 键 词： 稀释 合成气 层流燃烧速度

领　　域： [动力工程及工程热物理] [兵器科学与技术]