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本文成功搭建了加压对冲燃烧实验系统,该实验系统可将反应气体预热至1600 K,可调压力范围0.06~1.5MPa。在此基础上研究了合成气组分及NO加入量对其点火特性的影响,结果显示合成气点火温度主要受H_2浓度影响,而NO的加入有利于降低合成气点火温度,并且存在最佳的NO浓度使得点火温度达到最小值。

An experiment system of pressurized counterflowing flames was built up,which is capable to heat up the inlet gas to 1600 K at different pressures from 0.06 to 1.5 MPa.Experimental studies of the ignition characteristics of H_2/CO mixtures doped by NO were conducted at elevated pressures. It was found that H_2 concentration has a strong impact on ignition temperature of syngas.However, when the syngas is doped by NO,its ignition temperature decreases and turns to have a minimumv value at elevated pressures.

参考文献

[1] CHRISTIAN LUND RASMUSSEN;JORN HANSEN;PAUL MARSHALL .Experimental Measurements and Kinetic Modeling of CO/H2/O2/NO_x Conversion at High Pressure[J].International Journal of Chemical Kinetics,2008(8):454-480.
[2] Tan Y.;Law C.K.;Fotache C.G. .Effects of NO on the ignition of hydrogen and hydrocarbons by heated counterflowing air[J].Combustion and Flame,1999(3):346-355.
[3] Gokulakrishnan P;McLellan PJ;Lawrence AD;Grandmaison EW .Kinetic analysis of NO-sensitized methane oxidation[J].Chemical Engineering Science,2005(13):3683-3692.
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