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多孔陶瓷板燃气燃烧器氮氧化物的排放特性' J; b7 r, y- p5 q- C
李艳红1, 胡国新1, 徐吉浣2, 张鹤声2- h/ H2 J+ C2 K( c; M9 u- i$ j* v5 d
(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)3 Y4 D" m f9 M; V2 C" N7 q5 ]
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
, Q+ r8 m% M8 v0 f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
, r9 k9 R& [, 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, ]8 m: X5 U& X. e2 i. J+ _- C6 Z
并与数值计算的结果进行了比较.( {3 }# A! q; ?* ^6 A4 h
关键词:多孔陶瓷板;燃烧器;氮氧化物$ g. K1 i( Q( U2 q6 m
中图分类号:TK 124 文献标识码:A# `4 a4 g5 A9 z" S2 H: I; F
Analysis of NOxEmission of Town Gas
2 B& t9 d5 {+ Y" W0 \Premixed Combustion Within Ported Ceramic Plaque
5 B) l0 ` _- a u$ PLI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2
7 Q& o$ h& L/ T; ?: h3 |- T1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
/ w w: U+ m4 T2 u; K( u2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China$ j, Z/ M9 \/ w* M# N) y
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully h2 q6 Z. `, N+ ]- _
premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning' U5 J1 N! E9 c( `( t) j
process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-, t* C0 |( j- c* U
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
0 |* h5 R3 b* _- G) V/ xemission. The numerical results and experimental data are generally in agreement.
3 e6 D! J" L5 g/ QKey words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
