Methane/n-Butane Ignition Delay Measurements at High Pressure and Detailed Chemical Kinetic Simulations
Methane/n-Butane Ignition Delay Measurements at High Pressure and Detailed Chemical Kinetic Simulations
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DOI：
10.1021/ef901292j
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发表时间：
2010-03-01
期刊：
影响因子：
5.3
通讯作者：
Curran, H. J.
中科院分区：
文献类型：
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作者：
Healy, D.;Kopp, M. M.;Curran, H. J.
在两种不同的燃料组成90%CH4/10% n-C4 H10和70%CH4/30% n-C4 H10下，在大约10、16、20、25和30个大气压的压力下，从贫燃料到富燃料的条件下，记录了CH 4 M-C4 H10在“空气”中的共混物的自燃延迟时间测量，和温度从660至1330 K在快速压缩机和激波管设施。一个详细的化学动力学模型，包括1328个反应，涉及230个物种进行了验证，使用本研究的点火延迟数据。这种机制已经被用来模拟以前公布的点火延迟时间在广泛的条件。结果发现，该模型定量再现了点火延迟从快速压缩和反射的冲击波，准确地捕捉反应性的温度，压力，当量比，和燃料成分的函数。
Autoignition delay time measurements were recorded for blends of CH4M-C4H10 in "air" at pressures of approximately 10, 16, 20, 25, and 30 atm from fuel-lean to fuel-rich conditions at two different fuel compositions, 90% CH4/10% n-C4H10 and 70% CH4/30% n-C4H10, and temperatures from 660 to 1330 K in both a rapid compression machine and a shock-tube facility. A detailed chemical kinetic model consisting of 1328 reactions involving 230 species was validated using the ignition delay data from this study. This mechanism has already been used to simulate previously published ignition delay times over a wide range of conditions. It was found that the model quantitatively reproduces the ignition delays from both rapid compression and reflected shock waves, accurately capturing reactivity as a function of the temperature, pressure, equivalence ratio, and fuel composition.