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多孔陶瓷板燃气燃烧器氮氧化物的排放特性
( H8 ]( H7 i/ j: v8 `+ m8 [/ i+ M李艳红1, 胡国新1, 徐吉浣2, 张鹤声2) J1 H0 u) K/ `+ \# ]
(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)
. ?6 F \, o. N- F3 g) ~/ I& j6 c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: t9 B- n1 k8 O8 {/ E# S1 h
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/ ]- d) u5 o3 g4 C! ?
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,
4 z: H& {' Z$ N1 C1 t0 I并与数值计算的结果进行了比较.
0 W" d5 B( o; d% Z/ t( g v关键词:多孔陶瓷板;燃烧器;氮氧化物
. R g! b7 R0 O9 [( R3 n中图分类号:TK 124 文献标识码:A2 H* w7 S3 ~3 F( ~2 p
Analysis of NOxEmission of Town Gas9 W: ]8 U, `0 K+ C/ |* H r1 N
Premixed Combustion Within Ported Ceramic Plaque
8 l& z* |5 A V. t+ l. j0 m5 _LI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng25 X0 z: O! b) m. `! o: v
1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
. P# Z$ L* @ n( a: c! t2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China+ O/ ]0 M/ { r0 s
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully6 F$ e# F3 g" m$ f4 U" h
premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning
# X2 n8 S- t+ l! p$ X# tprocess was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-
" |: Z! }" p7 A% R4 v5 |perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
( q. u) c2 N& Cemission. The numerical results and experimental data are generally in agreement.
0 p1 U; `3 l& U% V9 N, o0 HKey words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
