Premixed jet flame characteristics of syngas using OH planar laser induced fluorescence

查看全文 作　　者：YANG [1]Li;WANG [1]ZhiHua;ZHU [1]YanQun;LI [2]ZhongShan;ZHOU [1]JunHu;HUANG [1]ZhenYu;CEN [1]KeFa

机构地区：[1]State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China;[2]Division of Combustion Physics, Lund University, Lund, P.O. Box 118, S-22100, Sweden

出　　处：《Chinese Science Bulletin》索引2011年第56卷第26期,共7页

基　　金：supported by the National Natural Science Foundation of China (50806066);the National Basic Research Program of China (2009CB219802);the Program of Introducing Talents of Discipline to University (B08026) 摘　　要：Lean premixed flame characteristics of several typical low calorific value (LCV) syngases (basis CO/H2/CH4/CO2/N2),including bituminous coal,wood residue,corn core,and wheat straw gasification syngas,were investigated using OH planar laser induced fluorescence (PLIF) technology.OH radical distributions within the turbulent flame were measured for different turbulence intensities.Flame structures of syngases were analyzed and characterized with respect to burnt and unburnt regions,flame curvature (sharp cusp),local extinction (holes and penetration),OH reaction layer thickness,wrinkling,and other features,with OH-PLIF instantaneous images and statistical analysis.Results show that H2 content,LCV,and turbulence intensity are the most effective factors influencing the OH radical intensity and thickness of OH radical layers.The bituminous coal gasification syngas with relatively higher LCV and H2 content tends to burn out easily.Through changes in thickness of the OH radical layers and signal intensities,the reaction layer can be compressed by intensifying turbulence and thereby the combustion processes of syngas. 关键词：平面激光诱导荧光火焰特性合成气预混 OH自由基轻型商用车喷气 PLIF

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Premixed jet flame characteristics of syngas using OH planar laser induced fluorescence

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