| 二甲醚燃烧的甲醛生成特性实验研究 |
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| 引用本文： | 赵黛青,曾涛,蒋利桥,汪小憨,杨卫斌,曾小军.二甲醚燃烧的甲醛生成特性实验研究[J].环境工程学报,2008,2(3):395-398. |
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| 作者姓名： | 赵黛青 曾涛 蒋利桥 汪小憨 杨卫斌 曾小军 |
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| 作者单位： | 中国科学院广州能源研究所,广州,510640 |
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| 基金项目： | 广东省自然科学基金
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中国科学院广州能源研究所开放基金 |
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| 摘 要： | 针对二甲醚平面预混火焰,实验研究了燃料当量比和燃料流量对燃烧过程中甲醛产生和排放特性的影响.实验结果表明,甲醛是二甲醚燃烧过程一个重要的中间产物,在火焰面中大量生成,但其中大部分甲醛迅速被氧化消耗;二甲醚燃烧过程中甲醛的生成受燃料当量比和火焰温度影响明显,欠氧(燃料当量比φ＜1)预混合燃烧的甲醛生成显著高于富氧(φ＜1)燃烧;燃料当量比一定时,随着燃料流量增加,火焰中的甲醛浓度升高.
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| 关 键 词： | 二甲醚 预混合火焰 污染物排放 甲醛 |
| 文章编号： | 1673-9108(2008)03-0395-04 |
| 修稿时间： | 2007年7月30日 |
Experimental study on formed characteristics of formaldehyde in DME combustion |
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| Zhao Daiqing,Zeng Tao,Jiang Liqiao,Wang Xiaohan,Yang Weibin and Zeng Xiaojun.Experimental study on formed characteristics of formaldehyde in DME combustion[J].Techniques and Equipment for Environmental Pollution Control,2008,2(3):395-398. |
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| Authors: | Zhao Daiqing Zeng Tao Jiang Liqiao Wang Xiaohan Yang Weibin and Zeng Xiaojun |
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| Institution: | Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640,Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640 and Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640 |
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| Abstract: | In dimethyl ether(DME)/air premixed flat flame, the influences of fuel/air flow rate and fuel equivalence ratio on forming formaldehyde and its emission characteristics were investigated experimentally. The results indicated that the formaldehyde was an important intermediate product in DME combustion process, and its concentration was very high in the flamefront, but most of them were consumed quickly in flame. The formed characteristics of formaldehyde were mainly influenced by the fuel equivalence ratio and the temperature of flame. Formaldehyde concentration increased when fuel equivalence ratio increased. At the same fuel equivalence ratio, higher flame temperature caused by large mixture flow rate had led to higher formaldehyde concentration |
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