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多孔陶瓷板燃气燃烧器氮氧化物的排放特性
0 W O7 a! V, z+ V李艳红1, 胡国新1, 徐吉浣2, 张鹤声29 s y6 H, l4 Y" W0 {6 J4 y3 V: t% n
(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)
: E% {& h2 N) ?9 ]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. o6 }9 i4 O* I+ i0 P8 e- 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
S+ p% F/ z3 a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,
* i6 }/ v8 m3 `4 ]并与数值计算的结果进行了比较.( X" R0 {; M- V" I5 g5 a% p
关键词:多孔陶瓷板;燃烧器;氮氧化物, R: y0 ^* ~3 j3 j& E
中图分类号:TK 124 文献标识码:A
. o7 e0 K1 I% WAnalysis of NOxEmission of Town Gas
& V& o9 a3 W) d1 l7 ^Premixed Combustion Within Ported Ceramic Plaque2 U% c0 p5 {$ O( k. o% g: `
LI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2
* @+ z; G6 n" N1 g8 S& F1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
& e4 F8 n2 ]2 l5 A/ Z0 Z5 V2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China m: Y. \% q% Z9 c. h
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully
5 B! J" H+ z4 f& D7 n3 ~premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning6 h0 Y" o$ ?* Z) F5 R% c
process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-1 R! V. S9 T* q
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
2 h( h6 P* F* z2 y; \6 e2 V# M& G4 Cemission. The numerical results and experimental data are generally in agreement.
2 D0 X# P' b! c: l+ ?Key words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
