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多孔陶瓷板燃气燃烧器氮氧化物的排放特性
/ [6 `, K0 [: j李艳红1, 胡国新1, 徐吉浣2, 张鹤声2: L. v( e, ^ C6 Y" b
(1.上海交通大学动力与能源学院,上海200030; 2.同济大学热能工程系,上海200092)9 n, ]2 {( D* ~, K
摘 要:探讨了多孔陶瓷板燃气预混燃烧过程中氮氧化物的生成机理,分析了该燃烧过程中氮氧化
3 s+ X$ m. B" m! V; X物排放量低的原因.在所得到的孔内混合气体温度场的基础上,运用数值计算方法计算了该燃烧过
3 u6 a( x. R( u程中氮氧化物的生成量.同时,利用试验手段得到了多孔陶瓷板燃气燃烧器的氮氧化物的排放量,
' |' u& O& J' p B2 N并与数值计算的结果进行了比较.
K: C& U: Q2 I$ h0 F" g3 K5 d6 _关键词:多孔陶瓷板;燃烧器;氮氧化物
) v: `! M, c [中图分类号:TK 124 文献标识码:A; j5 L6 ?8 L: Y$ w) i
Analysis of NOxEmission of Town Gas
4 f7 F5 N5 z& u- w' |& |! tPremixed Combustion Within Ported Ceramic Plaque
8 n* U3 D& e/ g8 ?! q1 ]! jLI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng26 B: ]6 a6 c" t+ F" N6 J3 S
1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;7 H- E& p3 |! p; c z% X
2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China/ I$ h* D$ R1 X/ O
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully( }4 u' W! m+ k6 u% J
premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning
' S" F: k. z- {process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-: b8 e# p- Y; N8 H% t; p5 e
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
% B+ P! h' i8 N- }$ T4 Lemission. The numerical results and experimental data are generally in agreement.
% K* z, p1 y& L6 q1 H' rKey words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
