本文采用详细化学反应机理数值研究了添加不同稀释气体(氦气/氩气/氮气/二氧化碳)对甲烷/空气预混气体点火的影响,比较了氢气/空气/二氧化碳和甲烷/空气/二氧化碳的最小点火能与稀释极限.研究结果表明:稀释气体的热力学效应和火焰动力学效应均会导致最小点火能变大;在添加二氧化碳时,甲烷/空气的稀释极限远低于氢气/空气的稀释极限.
参考文献
| [1] | Extinction of premixed methane/air flames in microgravity by diluents: Effects of radiation and Lewis number[J].Combustion and Flame,2010(8):1446-1455. |
| [2] | S.S. Shy;Y.C. Chen;C.H. Yang;C.C. Liu;C.M. Huang .Effects of H_2 or CO_2 addition, equivalence ratio, and turbulent straining on turbulent burning velocities for lean premixed methane combustion[J].Combustion and Flame,2008(4):510-524. |
| [3] | Stone R.;Beckwith P.;Clarke A. .Correlations for the laminar-burning velocity of methane/diluent/air mixtures obtained in free-fall experiments[J].Combustion and Flame,1998(3/4):546-555. |
| [4] | EFFECT OF DILUTION BY NITROGEN AND/OR CARBON DIOXIDE ON METHANE AND ISO-OCTANE AIR FLAMES[J].Combustion science and technology,2009(4/6):813-827. |
| [5] | Weikuo Zhang;Zheng Chen;Wenjun Kong .Effects of diluents on the ignition of premixed H_2/air mixtures[J].Combustion and Flame,2012(1):151-160. |
| [6] | 张伟阔,陈正,孔文俊.H_2/Air/CO_2点火过程中的热辐射和化学反应效应[J].工程热物理学报,2012(06):1065-1068. |
| [7] | Effects of hydrogen addition on the propagation of spherical methane/air flames: A computational study[J].International journal of hydrogen energy,2009(15):6558. |
| [8] | Chen, Z;Burke, MP;Ju, Y .Effects of compression and stretch on the determination of laminar flame speeds using propagating spherical flames[J].Combustion theory and modelling,2009(2):343-364. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%