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多孔陶瓷板燃气燃烧器氮氧化物的排放特性$ D5 R n. M- d8 }% ]
李艳红1, 胡国新1, 徐吉浣2, 张鹤声2
% @* @( \! P; X% v$ k(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)
$ B- r9 u" d5 `- k% \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 d8 b, P( `- [; t% v
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8 S7 B& P: A: T: _
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,
) N" B; w& @4 z2 V9 l并与数值计算的结果进行了比较.% D# A) Z9 ^9 d! x7 t7 T
关键词:多孔陶瓷板;燃烧器;氮氧化物5 l+ T+ {' k6 ?# f3 k3 f5 K
中图分类号:TK 124 文献标识码:A
8 l7 q/ Y- U7 H7 J5 O) FAnalysis of NOxEmission of Town Gas
* f, f) i. K( d& \# FPremixed Combustion Within Ported Ceramic Plaque
# T& a; f0 W: _3 M; v( H$ qLI Yan-hong1, HU Guo-xin1, XU Ji-huan2, ZHANG He-sheng2# P5 K* Z) h/ Y# }# X# {2 J
1. School of Power and Energy Eng., Shanghai Jiaotong Univ., Shanghai 200030, China;+ g/ d2 k1 M# ?: }8 R( E% O, T
2. Dept. of Thermal Eng., Tongji Univ., Shanghai 200092, China0 T" w6 k9 C( y# T: S* Y* S
Abstract: The mechanism of NOxformation was discussed while the town gas was combusted with air fully
3 |9 L4 W( `8 x Bpremixed within ported cereamic plaque. The reason why the NOxemission is low in this kind of burning
0 H! D) Y! F6 C# J/ Mprocess was analyzed in details and the NOxemission was predicted numerically on the predicted flame tem-
; O$ {2 v8 X: a. @; a" Jperature profile. Moreover, experiments were carried upon the ported ceramic plaque to measure the NOx
( u8 |+ ~. B2 s0 f1 ]emission. The numerical results and experimental data are generally in agreement.
" ~8 N7 Q& a/ hKey words: ported ceramic plaque; burner; NOxemission |
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发表于 2009-9-17 16:46:14
