【摘要】 在超燃冲压发动机实验中,燃烧室出口气体成份及分布是衡量燃烧情况的重要依据。笔者采用探针取样-色谱分析的方法,对于直联式超燃实验台不同工况下燃烧室出口气体进行了取样分析,总结了煤油燃烧比较完全、不完全以及基本未燃烧三种情况的典型气体分布规律。目前可测得的气体成份包括H2、O2、N2、CO、CO2、CH4和C2H4,进行成份分析与相应条件下燃烧室壁面静压分布比较,可进一步了解超声速燃烧的内部细节,为改进燃料掺混与燃烧提供参考数据。更多还原

【Abstract】 In scramjet tests,the gas components and the distribution at the exit of the combustor are important to evaluate combustion.In this paper,the probe sampling-gas chromatography system has been designed and tested in the direct-connect supersonic combustion facility.The representative distributions of the gas components were summarized under such conditions: almost completely burned,incompletely burned and without burning.The gas components including H₂,O₂, N₂, CO,CO₂,CH₄ and C₂H₄ can be detected.Analyging the component distributions with the corresponding static pressure on the combustor’s wall,the more detailed information can be obtained.The result can be used for the improvement of combustion.更多还原