分段多孔介质燃烧器二次进气燃烧排放研究

被引：8

作者：

吕兆华

MatthewsRD

机构：

[1] 南京理工大学机械学院!南京

[2] 得克萨斯大学!美国Austin

来源：

燃烧科学与技术 | 2000年 / 02期

关键词：

多孔介质; 燃烧器; 燃烧排放; 火焰稳定性;

D O I：

暂无

中图分类号：

O643.21 [];

学科分类号：

摘要：

对从中间段——燃烧管中上游段多孔泡沫陶瓷与下游段多孔泡沫陶瓷之间的一段间隙结构 ,引入二次空气的多孔介质燃烧器的 CO和 NO排放浓度进行了实验测试 ,较系统地研究了化学当量比、混合气流率和不同比率二次空气对天然气 /空气燃烧排放的影响。结果表明 ,加入适当比率的二次空气 ,不仅能够在相当宽的流速范围内使火焰很好地稳定在中间段 ,而且能得到低水平的 CO排放浓度 ,特别对较低当量比效果更为明显。同时 ,当火焰定位在中间段或近旁时 ,在化学当量比为 0 .4 5～ 0 .8范围内 NO的排放值能够低于 6× 10 - 6 ,达到了很理想的低排放水平

引用

页码：124 / 128

页数：5

共 10 条

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