高焓超声速气体取样分析
Gas sampling & analysis in the high enthalpy flow
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摘要: 对取样探针内的流场进行了一维分析,证明气流中的化学反应能够被成功冻结。建立了取样分析系统,并对其进行了密封性校核。利用该系统对燃烧室尾气进行了取样以及色谱成分分析,进而推算了燃烧效率,得到的结果与实验观察以及燃烧室壁面静压测量结果相吻合。Abstract: It was proved that the chemical reaction of the flow in the sampling probe was quenched by the analysis of 1-D.A gas sampling/chromatography analysis system had been established and it was checked for vacuum packaging.The system was used to sample and analyze the exhaust of scramjet.The combustion efficiency was acquired through the experimental results,which were agreed with the observation and the measurement results of static pressure on the combustor wall.
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Key words:
- aerospace propulsion system /
- sampling /
- probe /
- chromatography
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[1] Colket M B.Internal aerodynamics of gas sampling probes[J].Combustion and Flame,1982,44:3-14 [2] 格·狄内.燃烧过程中的气体和化学分析[R].北京:国防科学技术资料研究所,1963:38,40,45-58. [3] Tohru Mitani,Masahiro Takahashi,Sadatake Tomioka,et al.Analyses and application of gas sampling to scramjet engine testing[J].Journal of Propulsion and Power,1999,15(4):572-577. [4] Tohru Mitani.Quenching of reaction in gas-sampling probes to measure scramjet engine performance[R].Twenty-Sixth Symposium (International) on Combustion/The Combustion Institute,1996:2917-2924. [5] 孙传经.气相色谱分析原理与技术[M].北京:化学出版社,1981. -
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