| 引用本文: | 马承飚,林其钊.利用OH发射谱进行的高温低浓度甲烷着火研究.[J].国防科技大学学报,2017,39(6):197-202.[点击复制] |
| MA Chengbiao,LIN Qizhao.Research on methane ignition in lean-fuel and high temperature condition through OH emission measurements[J].Journal of National University of Defense Technology,2017,39(6):197-202[点击复制] |
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| 利用OH发射谱进行的高温低浓度甲烷着火研究 |
| 马承飚, 林其钊 |
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(中国科学技术大学 工程科学学院， 安徽 合肥 230027)
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| 摘要: |
| 采用激波管进行低浓度甲烷和空气混合气的着火实验，通过测量压力和OH发射光谱，得到不同工况下的着火延迟，并与甲烷的详细反应机理计算结果作比较。结果表明：不同浓度下甲烷着火延迟的对数与温度倒数呈线性关系，着火延迟随甲烷浓度的降低而减少；贫燃条件下，采用详细动力学机理计算的表观活化能与实验数据拟合较好。 |
| 关键词: 低浓度甲烷 着火延迟 激波管 OH发射谱 |
| DOI：10.11887/j.cn.201706030 |
| 投稿日期：2016-07-23 |
| 基金项目:国家自然科学基金资助项目（51376171） |
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| Research on methane ignition in lean-fuel and high temperature condition through OH emission measurements |
| MA Chengbiao, LIN Qizhao |
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(School of Engineering Science, University of Science and Technology of China, Hefei 230027, China)
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| Abstract: |
| Ignition experiments of methane and air mixture in low equivalence ratio were carried out in a shock tube. Ignition delay in different working conditions was obtained through transient pressure signal and OH emission measurement. The experiment results were compared with the calculation based on detailed methane oxidation mechanism. Analysis results indicate that: there is a linear relationship between the logarithm of ignition delay and the reciprocal of temperature; ignition delay decreases with the reduction of methane concentration; the apparent activation energy of experiment results agrees well with the simulation of detailed mechanism. |
| Keywords: lean-burn methane ignition delay shock tube OH emission |
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