摘要
燃烧的基本特性如抬举高度、层流燃烧速度以及射流出口速度等与燃烧装置的设计有关。对纯氢气火焰、氢气/甲烷、氢气/甲烷/CO2扩散火焰的抬举高度和射流出口速度进行了实验研究,并对层流燃烧速度进行了分析。研究认为,抬举高度随着射流出口速度的增加而线性增加。层流燃烧速度随氢气体积分数的增加呈指数增长,特别当氢气体积分数>40%以后,层流燃烧速度随氢气体积分数显著增加。
The basic combustion characteristics of the fuel such as liftoff height, laminar burning velocity and jet exit velocity are directly related to the designing of the combustion device. This paper exp!ores liftoff height and jet exit velocity of H2, H2/CH4 and H2/CH4/CO2 diffusion flames experimentally. Besides, laminar burning velocity is also studied in detail. From the research, jet liftoffheight increases linearly along with the increasing of jet exit velocity. In addition, laminar burning velocity increases exponentially corresponding to the increasing of hydrogen concentration, Especially after hydrogen concentration is over 40%, laminar burning velocity increases significantly along with hydrogen concentration increasing.
出处
《能源研究与管理》
2017年第4期50-53,共4页
Energy Research and Management
基金
江苏省大学生创新创业训练计划项目(201714000007Y)
关键词
扩散火焰
抬举高度
层流燃烧速度
射流出口速度
diffusion flames
liftoff height, laminar burning velocity
jet exit velocity
