摘要
针对层燃炉冒正压时的燃烧“喘息”现象,利用微压传感器对炉膛燃烧压力波动进行了测量,采用自相关函数结合功率谱密度的方法分析了频谱特征。研究表明,燃烧“喘息”现象是由燃烧压力周期波动引起的,说明炉膛内存在燃烧振荡。
The ＂Puff＂ phenomena of combustion during intervals of positive pressure, occurring in a stoker boiler, was studied with a micro-pressure transducer to pick up pressure fluctuations, the spectrum of which was analyzed by making use of autocorrelation and spectrum density functions. Study results indicate that puffing combustion is occasioned by periodical pressure oscillations, which demonstrates the existence of combustion oscillations in the furnace. Figs 10, tables 2 and refs 8.
出处
《动力工程》
EI
CSCD
北大核心
2006年第3期316-319,共4页
Power Engineering
关键词
工程热物理
燃烧
层燃炉
冒正压
压力波动
engineering thermophysics
combustion
stoker furnace
occurrence of positive pressure
pressure oscillation
