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多孔陶瓷板燃气燃烧器氮氧化物的排放特性
* a0 I# r" D# O) X李艳红1, 胡国新1, 徐吉浣2, 张鹤声2' `% h* _2 ~3 W+ `, {9 G0 t3 Q
(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 b" l1 R# \: 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
; @: ?9 A3 y5 T: a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* r, n0 w/ Z0 n6 o7 v) V
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,/ c5 O" Q+ @4 ~( Y. a
并与数值计算的结果进行了比较./ j% L+ V% [1 P* m* e5 M- H
关键词:多孔陶瓷板;燃烧器;氮氧化物2 K, T, D2 k7 p+ I4 _
中图分类号:TK 124 文献标识码:A' M) ~% k5 p g P; B0 C3 M
Analysis of NOxEmission of Town Gas( |# [* l ]. K* K
Premixed Combustion Within Ported Ceramic Plaque
! `2 j' B- X5 ~0 F# P' HLI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2& E7 C% J/ n/ u( v' o" p* K
1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;
" O' X1 t Y1 V2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China
. v" C4 w( V2 x# c: ?) Q* y5 d, @Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully. ?7 F. I0 _$ v! e4 n
premixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning
# p1 [% w, v2 _1 X4 hprocess was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-: `& q0 h/ R0 D* g
perature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx: p8 }5 z3 O. G+ x+ g: G
emission. The numerical results and experimental data are generally in agreement.8 J, [2 u, w9 R- f6 b, |& B
Key words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
