[1]张悦,顾中铸.添加CO_2对甲烷/空气扩散火焰中NO形成的影响[J].南京师范大学学报(工程技术版),2012,12(02):050-52.
Zhang Yue,Gu Zhongzhu.The Effect of CO2 as an Additive in a Methane/Air Diffusion Flame on NO Formation[J].Journal of Nanjing Normal University(Engineering and Technology),2012,12(02):050-52.
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添加CO_2对甲烷/空气扩散火焰中NO形成的影响
南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
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12卷
- 期数:
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2012年02期
- 页码:
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050-52
- 栏目:
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- 出版日期:
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2012-06-20
文章信息/Info
- Title:
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The Effect of CO2 as an Additive in a Methane/Air Diffusion Flame on NO Formation
- 作者:
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张悦;顾中铸;
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南京师范大学能源与机械工程学院,江苏南京210042
- Author(s):
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Zhang Yue; Gu Zhongzhu
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School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China
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- 关键词:
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NO; 稀释剂; 层流扩散火焰
- Keywords:
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NO; diluents; laminar diffusion flame
- 分类号:
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TK16
- 摘要:
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以结构简单的同向层流扩散火焰作为研究对象,通过实验和数值模拟的方法研究了燃料侧添加CO2对甲烷/空气火焰中NO生成的影响.结果表明,燃料侧添加CO2可以降低NO的排放.CO2的稀释效应、热效应以及化学效应可以降低火焰的温度、降低O原子、H原子、OH自由基以及CH自由基的最大摩尔浓度,抑制了快速型NO的形成.
- Abstract:
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Taking the simple-structured coflow laminar diffusion flame as the object of study,the paper investigated the effect of CO2 as an additive in a CH4 /air flame on NO formation by experiment and numerical simulation. The result shows that CO2 addition to fuel side can reduce NO emission index effectively. The dilution,thermal and chemical effects of CO2 addition to fuel side can decrease the flame temperature,the maximum concentrations of O atom,H atom, OH radical and CH radical,which leads to the suppression of prompt NO.
参考文献/References:
[1]Liu F,Guo H,Smallwood G J,et al. The chemical effects of carbon dioxide as an additive in an ethylene diffusion flame: implications for soot and NOx formation[J]. Combustion and Flame,2001,125: 778-787.
[2]Jeong Park,Seung-Gon Kim,Kee-Man Lee,et al. Chemical effect of diluents on flame structure and NO emission characteristic in methane /air counterflow diffusion flame[J]. Int J Energy Res,2002,26: 1141-1160.
[3]杨浩林,赵黛青,鲁冠军. CO2 稀释燃料对富氧扩散燃烧中NOx 生成的抑制作用[J]. 热能动力工程,2006,21( 1) : 43-47. Yang Haolin,Zhao Daiqing,Lu Guanjun. The role played by CO2 diluted fuel in suppressing NOx formation during an oxygenenriched diffusion combustion process[J]. Journal of Engineering for Thermal Energy and Power,2006,21( 1) : 43-47. ( in Chinese)
[4]Guo H,Liu F,Smallwood G J,et al. Numerical study on the influence of hydrogen addition on soot formation in a laminar ethylene /air diffusion flame[J]. Combustion and Flame,2006,145: 324-338.
[5]Liu Z,Liao C,Liu C,et al. Implicit multigrid method for modeling 3D turbulent diffusion flames with detailed chemistry [C]/ / Reno: 33rd Aerospace Science Meeting and Exhibit,1995.
[6]Smith G P,Golden G M,Frenklach M,et al. http: / /www. me. berkeley. edu /gri-mech,1995.
[7]Kee R J,Rupley F M,Miller J A. CHEMKIN-Ⅱ: a fortran chemical package for the analysis of gas-phase chemical kinetics [C]/ / Albuquerque: Sandia Report No SAND89-8009,Sandia National Laboratories,1989.
[8]Guo H,Neill S W,Smallwood G J. A numerical investigation of NOx formation in counterflow CH4 /H2 /Air diffusion flames [C]/ / Chicago: International Mechanical Engineering Congress and Exposition,2006.
[9]Guo H,Liu F,Smallwood G J,et al. Effects of radiation model on the modeling of a laminar coflow methane /air diffusion flame[J]. Combustion and Flame,2004,138: 136-154.
备注/Memo
- 备注/Memo:
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基金项目: 江苏省政府留学基金( JS - 2006 - 024) .通讯联系人: 顾中铸,教授. 研究方向: 通风与除尘,燃烧污染物控制. E-mail: guzhongzhu@ njnu. edu. cn
更新日期/Last Update:
2013-03-11