Performance Analysis and Optimization for Static Mixer of SCR Denitration System under Different Arrangements

被引：7
作者：
Pang, Zhanzhou [2 ]
Chen, Ranjing [1 ]
Cao, Yue [1 ]
机构：
[1] Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing 210096, Peoples R China
[2] Inner Mongolia Daihai Elect Power Generat Co Ltd, Ulanqab 013700, Peoples R China
来源：
ENERGIES | 2022年 / 15卷 / 23期
关键词：
SCR; static mixer; arrangement mode; flow field; concentration field; SELECTIVE CATALYTIC-REDUCTION; FIRED POWER-PLANT; NUMERICAL-SIMULATION; CFD; NOX;
D O I：
10.3390/en15238977
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In order to solve the poor flow performance issues of selective catalytic reduction (SCR) denitration systems, the effect of the static mixer on the flow field was studied using computational fluid dynamics (CFD) numerical simulations. Based on the analysis of the original SCR denitration system, two static mixers were selected to explore their influence on system performance. The results show that both static mixers can effectively improve the denitration performance under different conditions. The static mixer with a rotating arrangement showed a better performance in the uniformity of concentration. The pressure loss without a static mixer is 834 Pa, and the pressure loss increases by 94 Pa and 73 Pa for rotating and X-arranged static mixers, respectively. Meanwhile, a static mixer will increase energy loss. Therefore, power plants can choose the layout of their static mixers according to the actual situation to achieve the optimal performance.
引用
收藏
页数：14
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