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多孔陶瓷板燃气燃烧器氮氧化物的排放特性/ o8 ?1 h* b3 o; {4 Q$ ]3 z- j
李艳红1, 胡国新1, 徐吉浣2, 张鹤声2% e |8 G) U" p$ @5 F- a
(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); q6 N$ r8 I$ k4 `) j
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
$ K/ e/ g$ q8 J# o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
" v h q0 x+ X: M; G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,
& t6 o0 K: `& a0 A, q" F3 }并与数值计算的结果进行了比较.6 y/ {% n9 i$ B4 R5 }4 }. t
关键词:多孔陶瓷板;燃烧器;氮氧化物
1 l1 n; d# ?5 \9 _; c中图分类号:TK 124 文献标识码:A
' Z% X9 D% k& ^1 a, G1 X9 mAnalysis of NOxEmission of Town Gas
6 f" C/ _* a4 T$ yPremixed Combustion Within Ported Ceramic Plaque8 j0 I, T' S" C5 ~
LI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2
( j* x8 X" Z4 O% x1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;4 V6 g! t2 r5 r: Z
2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China4 v9 N, R% j- f9 I2 F
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully
/ ^ c, _* f2 n. M8 C% t: Wpremixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning9 K: R3 f {! X; k" `
process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-: B, z. |$ E$ e5 O! J
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx; u" N# o1 l2 c9 F
emission. The numerical results and experimental data are generally in agreement.8 q# Z0 w: s, A+ y4 I! i, c
Key words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
