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多孔陶瓷板燃气燃烧器氮氧化物的排放特性0 |/ u) O$ m6 Q ~. c
李艳红1, 胡国新1, 徐吉浣2, 张鹤声2
# R9 t" R# V5 f+ I b$ Z(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); p* L4 O/ ~) W+ E$ ?: X* u
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
4 H+ g* W; r) U [( S: Z/ a0 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
, k9 z7 r9 t" k \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,# \6 X+ b7 H: @- H4 y9 D9 Q
并与数值计算的结果进行了比较.- z* u7 U$ S' L5 j% ?( w' {
关键词:多孔陶瓷板;燃烧器;氮氧化物: w: k1 N% m3 t+ e
中图分类号:TK 124 文献标识码:A
; N, A" G. G" g+ x/ JAnalysis of NOxEmission of Town Gas
* c6 Z. v. M: LPremixed Combustion Within Ported Ceramic Plaque( h! s! g/ e* ^5 s: U/ v& r; \
LI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2) g6 ^1 s. `1 A2 D) r$ r
1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;. k, N5 U6 g% W4 |
2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China
# w# @2 v* k; y; `& c2 f5 }! JAbstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully
3 a! R; O! B: S' q# s' c& xpremixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning6 P% i4 L5 E5 F9 s, G
process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem- W/ ~4 ?$ v. M `# ~$ Q1 E+ W& n
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx; K9 e8 X* X8 a# U7 K) Q3 p. {
emission. The numerical results and experimental data are generally in agreement.( w* T9 J" h/ D' Z( M
Key words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
