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多孔陶瓷板燃气燃烧器氮氧化物的排放特性
3 d# ]( R+ `! X K- f" Y+ E李艳红1, 胡国新1, 徐吉浣2, 张鹤声2( s- q- [+ D. L/ v( A5 u, o
(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)
0 H$ C% R, H) z5 s1 ]$ \4 I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- b$ G9 c7 A" o% c) C( Q
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: J% p, \! \+ b2 ~/ w7 R
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,
$ e& j- s6 }) h/ d w并与数值计算的结果进行了比较.
?% P' M6 m$ x6 [$ l G3 U) w" ^' ~5 }关键词:多孔陶瓷板;燃烧器;氮氧化物' q% c/ A7 g7 C ^
中图分类号:TK 124 文献标识码:A- m! I3 C# w+ V0 E# H7 g: M! o
Analysis of NOxEmission of Town Gas& L, m: L2 N% x: x% R
Premixed Combustion Within Ported Ceramic Plaque) F( C9 z& z2 [2 m. `- a' n! n
LI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2
8 Z0 Y% J7 L. v5 P) ~1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
& M0 x( f2 B; l7 v& C, ]( P2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China
8 q/ C& T1 s6 {Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully: ^9 ]% [4 w: ~, q4 H9 D: s
premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning* Y* B$ N* F; N0 F8 \
process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-, ?) h6 r( D& W+ [
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
+ D4 \- v8 d Y& }emission. The numerical results and experimental data are generally in agreement.- ]$ A/ K1 Y, R0 R5 a
Key words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
