摘要
在密闭燃烧容器中对常温、常压环境下的生物质燃气预混层流燃烧特性进行了实验研究,研究了不同燃气组分、不同当量比对生物质燃气预混层流火焰传播速度、火焰表面拉伸率和层流燃烧速度的影响规律。研究结果表明:发酵法制取的生物质燃气中甲烷含量越高,其层流火焰传播速度就越快;相同尺寸的火焰锋面上拉伸率越大,层流燃烧速度则越快;随着当量比的增大,层流火焰传播速度、层流燃烧速度呈现出先增大后减小的趋势。
In this paper,The biogas premixed laminar combustion characteristics were investigated experimentally in atmospheric environment within a closed container,Study on the change law of important parameters of biogas premixed laminar combustion characteristics （the flame propagation speed, the flame surface stretching rate, the laminar burning velocity） with different components and different equivalence ratios of biogas. The resutts show that the higher content of methane gas of biogas produced by fermentation method, the laminar flame propagation speed is faster, the stretching rate is bigger on the same size flame front,and the laminar burning velocity is faster. The laminar flame propagation speed and the laminar burning velocity show a first increase and then decrease trend with the equivalence ratio increase.
出处
《可再生能源》
CAS
北大核心
2015年第8期1225-1230,共6页
Renewable Energy Resources
关键词
生物质燃气
预混层流燃烧
火焰传播速度
表面拉伸率
层流燃烧速度
biogas
premixed laminar combustion
flame propagation speed
surface tension rate
laminar burning velocity
