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多孔陶瓷板燃气燃烧器氮氧化物的排放特性
+ E$ M) b% Q% _! X) N9 U: W6 O李艳红1, 胡国新1, 徐吉浣2, 张鹤声2
9 {3 l t: h* T(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) \! k6 p/ r6 J( r0 b8 G; L
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
; y, ] S/ O+ ^3 D o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
. X V/ e3 s# ?0 s$ M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,& f% w% o0 T4 H2 O5 v
并与数值计算的结果进行了比较.
+ w: H! Y- Z$ E关键词:多孔陶瓷板;燃烧器;氮氧化物
: G7 \0 `5 P& B中图分类号:TK 124 文献标识码:A* ?$ B6 d, \& d N/ Z9 l! E
Analysis of NOxEmission of Town Gas- U* e; v, ~% ^: ]+ ^
Premixed Combustion Within Ported Ceramic Plaque0 X6 v: Q7 i& R+ b
LI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2
" B* J( J0 [7 V$ |+ H8 O1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;2 h" Y6 F, Y1 ]5 f: \/ P
2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China7 A4 o" ^; h% D
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully
3 Y) C& U' c* c! r) ~premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning% c, J6 I0 {8 { m: {4 j9 g1 |
process was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-4 p( x8 i! H! t( a: }) y% ]
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
/ ~3 i! K% L# Oemission. The numerical results and experimental data are generally in agreement.
0 \2 H3 C- y" T- D9 j" a( AKey words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
