利用平面激光诱导荧光（PLIF）、高温细丝热电偶及红外气体分析仪对不同N2稀释量下的双旋流合成气非燃烧流场进行了实验研究。实验结果表明，随着N2稀释量的增加：双旋流合成气火焰的基本结构发生变化，火焰会出现典型的推举火焰特征；火焰锋面被拉伸，主要反应区域轴向长度和径向宽度增大，喷嘴出口附近火焰锋面由M型分布逐渐转变为W型分布，轴线上未反应区域不断扩大；火焰张角与穿透深度增大，火焰推举高度减小；燃烧排气温度略有减小，NO排放明显降低。
Experiments have been performed to investigate the effect of N2 dilution on the flame structures of a double-swirled non-premixed syngas flames. Planar laser induced fluorescence （PLIF） of OH-radical measurement is adopted to identify main reaction zones and burnt gas regions. Together with temperature and emission measurement during exhaust section, some important characteristics of the syngas flame are overall investigated. Experimental result shows that syngas flame root near the burner exit demonstrates double flame front structure. The existence of N2 expands the flame opening angle and enlarges the main reaction zone, and it may lead to lower NO emission and higher CO emission in exhaust gas.
参考文献
| [1] | T.Hasegawa;M.Sato;T.Nakata .A Study of Combustion Characteristics of Gasified Coal Fuel[J].Journal of engineering for gas turbines and power: Transactions of the ASME,2001(1):22-32. |
| [2] | Ulrich Stopper;Manfred Aigner;Wolfgang Meier;Rajesh Sadanandan;Michael Stohr;Ik Soo Kim .Flow Field and Combustion Characterization of Premixed Gas Turbine Flames by Planar Laser Techniques[J].Journal of engineering for gas turbines and power: Transactions of the ASME,2009(2):021504-1-021504-8-0. |
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