中国电机工程学报Issue(35)：73-80,8.
合成气扩散火焰点火特性的实验研究
Experimental Investigation of Ignition Characteristics of Non-premixed Syngas Flames
张晓宇 1翁方龙 1钟迪 1朱民1
作者信息
- 1. 清华大学热科学与动力工程教育部重点实验室，北京市 海淀区100084
- 折叠
摘要
Abstract
An experimental investigation on the influence of proportion of syngas constituents on ignition time and ignition limit was implemented in a model gas turbine combustor. The syngas used in the experiment consisted of hydrogen, carbon monoxide, methane, carbon dioxide, and nitrogen, and the heat value of the syngas was in a range of 4.76-35.8MJ/m3. The check experiment of methane ignition was carried out. The effect of inlet air flow and proportion of syngas constituents on ignition limit and ignition time was investigated systematically. The experimental results show that the ignition time shortens obviously, and the ignition limit is enlarged evidently when the hydrogen proportion is increased from 0 to 20%. When the proportion is over 50%, the influence of employed air flow on ignition time and ignition limit is no longer evident, thus, H2 is the most important factor. Meanwhile, three subsequent distinct flame patterns were observed. Unstable flames are near the lean ignition limits;stable flames are in the range of lean condition;and oscillated flames are in the rich condition as a form of periodically propagated flame. Finally, an ignition map was obtained.关键词
合成气/电火花点火/扩散火焰/点火极限/燃气轮机燃烧室Key words
syngas/spark ignition/non-premixed flames/ignition limit/gas turbine combustor分类
能源科技引用本文复制引用
张晓宇,翁方龙,钟迪,朱民..合成气扩散火焰点火特性的实验研究[J].中国电机工程学报,2013,(35):73-80,8.
