Prediction of ash deposition in ash hopper when tilting burners are used

被引:14
作者
Hao, Z [1 ]
Kefa, C [1 ]
Ping, S [1 ]
机构
[1] Zhejiang Univ, Inst Thermal Power Engn, Clean Energy & Environm Engn Key Lab MOE, Hangzhou 310027, Peoples R China
关键词
pulverized coal fired; tangentially fired furnace; ash slag; deposition growth;
D O I
10.1016/S0378-3820(02)00163-7
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
This work presents a model of ash deposition growth in the ash hopper of utility boilers when the nozzles are tilted downwards. The model consists a comprehensive combustion code to predict the flow field, temperature field, the gas and solid combustion and the deposition growth behavior. The results show that burner tilting has a significant effect on the deposition in the ash hopper. The work indicates that the numerical model can be used to optimize the design and operation of pulverized coal-burning boiler equipped with tilting burner systems. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:181 / 195
页数:15
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