基于交叉射流与切向旋流的CH_4柔和燃烧特性对比
Comparison of CH_4 moderate or intense low-oxygen dilution combustion characteristics based on cross-flow jet mixing and swirl mixing
查看参考文献26篇
|
文摘
|
轴向分级柔和燃烧器中,采用了交叉射流、切向旋流两种掺混方式,通过实验结合数值计算的方法,从流场和组分分布角度比较了两种掺混方式的掺混特点,从火焰特征、NO/CO排放方面比较了燃烧性能.实验以甲烷为燃料,热功率为16.2~25.9kW,相对切向旋流,交叉射流延缓了燃料、空气的直接混合,燃料、空气燃烧前经回流烟气充分预热和稀释,火焰根部有抬升,反应区体积大,火焰特征更接近柔和燃烧.同时,交叉射流分级燃烧器的污染物排放性能更优,回流比例为0.5、当量比为0.6时,烟气中NO和CO体积分数均仅为4×10~(-6). |
|
其他语种文摘
|
Two axially-staged moderate or intense low-oxygen dilution (MILD)configurations,based on cross-flow jet mixing and swirl mixing,were numerically and experimentally studied to compare their mixing performance from flow field pattern and species distribution,and to compare their combustion property from flame behavior and NO and CO emissions. The experiment fuel was methane and the heat load was regulated in the range of 16.2 to 25.9kW.The mixing between fuel and air stream is delayed in the cross-flow jet mixing configuration compared to the swirl mixing configuration,and thereby the recirculated hot flue gas preheats and diluts the fuel and air stream before spontaneous reaction in the former configuration.Compared to the swirl mixing configuration,higher flame lift-off height and more spatially distributed flame are observed in the cross-flow jet mixing configuration,of which flame behavior is also closer to MILD combustion.Furthermore,lower NO and CO emissions are observed for the cross-flow jet mixing staged combustor;at gas recirculation ratio of 0.5and equivalence ratio of 0.6,the volume fractions of NO and CO in the flue gas are both 4×10~(-6). |
|
来源
|
航空动力学报
,2014,29(1):31-41 【核心库】
|
|
DOI
|
10.13224/j.cnki.jasp.2014.01.005
|
|
关键词
|
分级燃烧
;
柔和燃烧
;
交叉射流
;
切向旋流
;
OH~*
;
NO/CO排放
|
|
地址
|
中国科学院工程热物理研究所, 中国科学院先进能源动力重点实验室, 北京, 100190
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-8055 |
|
学科
|
航空 |
|
基金
|
国家自然科学基金
|
|
文献收藏号
|
CSCD:5034173
|
参考文献 共
26
共2页
|
|
1.
Shy S S. Effects of H_2 or CO_2 addition,equivalence ratio,and turbulent straining on turbulent burning velocities for lean premixed methane combustion.
Combustion and Flame,2008,153(4):510-524
|
被引
7
次
|
|
|
|
|
2.
Solero G. Effect of injection typology on turbulent homogeneous mixing in a natural gas swirl burner.
Experimental Thermal and Fluid Science,2000,21(4):162-170
|
被引
2
次
|
|
|
|
|
3.
Davis L B.
Dry low NOx combustion systems for GE heavy-duty gas turbines.GE Power Systems,GER-3568G,2010
|
被引
1
次
|
|
|
|
|
4.
Benini E. Reduction of NO emissions in a turbojet combustor by direct water/steam injection numerical and experimental assessment.
Applied Thermal Engineering,2009,29(17/18):3506-3510
|
被引
5
次
|
|
|
|
|
5.
Hasegawa T. Development of advanced industrial furnace using highly preheated combustion air.
Journal of Propulsion and Power,2002,18(2):233-239
|
被引
4
次
|
|
|
|
|
6.
Cavaliere A. MILD combustion.
Progress in Energy and Combustion Science,2004,30(4):329-366
|
被引
68
次
|
|
|
|
|
7.
Yu Yu. Flameless combustion for hydrogen containing fuels.
International Journal of Hydrogen Energy,2010,35(7):2694-2697
|
被引
6
次
|
|
|
|
|
8.
Wunning J G. Flameless oxidation to reduce thermal NOformation.
Progress in Energy Combustion Science,1997,23(1):81-94
|
被引
55
次
|
|
|
|
|
9.
SzegoG G. Operational characteristics of a parallel jet MILD combustion burner system.
Combustion and Flame,2009,156(2):429-438
|
被引
23
次
|
|
|
|
|
10.
Dally B B. Structure of turbulent non-premixed jet flames in a diluted hot coflow.
Proceedings of the Combustion Institute,2002,29(1):1147-1154
|
被引
24
次
|
|
|
|
|
11.
陈钦.
燃气轮机燃烧室柔和燃烧条件与特征的研究,2010
|
被引
3
次
|
|
|
|
|
12.
黄明明. 低排放分级燃烧器中CH_4柔和燃烧特性.
燃气轮机技术,2013,26(1):33-39
|
被引
2
次
|
|
|
|
|
13.
黄明明. 交叉射流分级燃烧器中CH_4柔和燃烧特性分析.
中国电机工程学报,2013,33(8):22-29
|
被引
5
次
|
|
|
|
|
14.
Arghode V K. High intensity colorless distributed combustion for ultra low emissions and enhanced performance.
Applied Energy,2012,92(4):822-830
|
被引
6
次
|
|
|
|
|
15.
Khalil A E E. Distributed swirl combustion for gas turbine application.
Applied Energy,2011,88(12):4898-4907
|
被引
3
次
|
|
|
|
|
16.
Arghode V K. Investigation of reverse flow distributed combustion for gas turbine application.
Applied Energy,2011,88(4):1096-1104
|
被引
3
次
|
|
|
|
|
17.
Arghode V K. Hydrogen addition effects on methane-air colorless distributed combustion flames.
International Journal of Hydrogen Energy,2011,36(10):6292-6302
|
被引
1
次
|
|
|
|
|
18.
Hill S C. Modeling of nitrogen oxides formation and destruction in combustion systems.
Progress in Energy and Combustion Science,2000,26(4/5/6):417-458
|
被引
89
次
|
|
|
|
|
19.
Dandy D S. Numerical and experimental studies of hydroxyl radical chemiluminescence in methane air flames.
Combustion Science and Technology,1992,82(1/2/3/4/5/6):131-150
|
被引
6
次
|
|
|
|
|
20.
Lefebvre A H.
Gas turbine combustion. (2nd ed),1998
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问