Large-Eddy Simulation of Pulverized Coal Combustion in Swirling Flow
Large-eddy simulation (LES) is applied to both a pulverized coal combustion and non-conbusion field in a combustion test furnace with a practical advanced low NOx burner called CI-a burner,and investigated the effect to coal combustion on flow field and ignition mechanism.The results show that predicted flow filed and coal particle behavior are in general agreement with,the experiment.Coal combustion storongly affect flow filed.Primary air jet and swirling flow is enhanced by the burned gas expansion.Moreover,a recirculation flow formed by strong swirling flow is observed near the burner region and keeps satable coal combustion by transporting hot gas and increasing coal particle residence time.
Pulverized Coal Combustion Large-Eddy Simulation Swilling Flow
K.Tanno H.Watanabe N.Hashimoto R.Kurose H.Shirai
Energy Engineering Research Laboratory,Central Research Institute of Electric Power Industry (CRIEPI Department of Mechanical Engineering and Science,Kyoto University,Yoshida-honmachi,Sakyo-ku,Kyoto,Ja
国际会议
The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)
哈尔滨
英文
670-674
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）