简化的Solomon热解模型和旋流煤粉燃烧NO生成的数值模拟  

SIMPLIFIED SOLOMON PYROLYSIS MODEL AND SIMULATION OF NO FORMATION IN SWIRLING COAL COMBUSTION

作　　者：张宇[1] 周力行[1] 张健[1] 

机构地区：[1]清华大学工程力学系,煤的清洁燃烧国家重点实验室,北京100084

出　　处：《化工学报》2003年第9期1274-1278,共5页CIESC Journal

基　　金：国家重点基础研究专项基金资助项目子课题 (No .G1999-0 2 2 2 -0 7)~~

摘　　要：提出一种简化的Solomon热解模型 ,用于模拟煤粉燃烧NO生成数值模拟中HCN的释放 .用纯双流体模型、k ε kp 两相湍流模型、EBU Arrhenius燃烧模型、六热流辐射模型、双方程热解模型、简化的Solomon热解模型以及NO生成湍流反应二阶矩代数模型对旋流煤粉燃烧器内两相流动、煤粉燃烧、HCN释放以及NO生成进行了数值模拟 .模拟结果与文献中实验结果的对比表明 。A simplified Solomon pyrolysis model for simulating HCN release in NO formation during coal combustion is proposed. A full two-fluid model together with the κ-Ε-kp two-phase turbulence model, the EBU-Arrhenius combustion model, the six-flux radiation model, and two different HCN release models are used to simulate gas-particle flows, coal combustion, HCN release and NO formation in a swirl burner. Comparison of predictions with experimental results taken from references indicates that the HCN release model based on the simplified Solomon pyrolysis model is better than the original HCN release model based on the two-equation pyrolysis model.

关 键 词：热解模型 旋流煤粉燃烧 NO生成 

分 类 号：TK223.23[动力工程及工程热物理—动力机械及工程]