【作者】 季俊杰； 罗永浩； 胡瓅元；

【Author】 JI Jun-jie, LUO Yong-hao, HU Li-yuan (Shanghai Jiaotong University, School of Energy and Power, Shanghai 200240)

【机构】 上海交通大学热能工程研究所；

【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。更多还原

【Abstract】 Sensitive pressure transducer was used to record the combustion pressure fluctuation in furnace to study the combustion pressure fluctuation of “puffs” in stoker. The spectrum feature is analyzed with autocorrelation and spectrum density function. The result shows that the “puffs” in the furnace are caused by the pressure oscillation, which indicates that there is combustion oscillation in the furnace.更多还原