泡沫陶瓷胞元结构对甲烷燃烧特性的影响  

Influence of Cellular Structure of Foam Ceramics on Methane Combustion Characteristics

作　　者：郑海峰 郑晓龙 陈元元[2] ZHENG Haifeng;ZHENG Xiaoong;CHEN Yuanyuan(Chongqing CISDI Thermal&Environmental Engineering Co.Ltd.,Chongqing 401122,China;State Key Laboratory of Refractory Materials and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]重庆赛迪热工环保工程技术有限公司,重庆401122 [2]武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北武汉430081

出　　处：《工业炉》2023年第5期5-11,共7页Industrial Furnace

基　　金：国家自然科学基金项目(51804234)。

摘　　要：为了探究胞元结构对甲烷燃烧特性的影响,优化多孔介质燃烧器结构,设计开发了以Kelvin和WP胞元模型为结构特征的泡沫陶瓷板构成的多孔介质燃烧器,分析了该燃烧器在燃烧甲烷时的燃烧室温度、贫燃极限、辐射效率与烟气排放特性。结果表明:在孔密度、骨架直径、燃烧工况都相同的条件下,WP模型泡沫陶瓷板构成的燃烧器燃烧室温度和辐射效率高于Kelvin模型,CO和NO_(x)排放量低于Kelvin模型。To explore the influence of cellular structure on methane combustion characteristics,optimize the structure of porous medium burner,a porous medium burner composed of foam ceramic plates with Kelvin and WP cellular model as the structural characteristics was designed and developed,and the combustion chamber temperature,lean burn limit,radiation efficiency and flue gas emission characteristics of the burner when burning methane are analyzed.The results show that under the condition that the pore density,skeleton diameter and combustion conditions are the same,the temperature and radiation efficiency of the combustor composed of foam ceramic plates in WP model are higher than those in Kelvin model,and CO and NOx emissions are lower than those in Kelvin model.

关 键 词：多孔介质燃烧器 胞元结构 燃烧特性 辐射效率 贫燃极限 

分 类 号：TK16[动力工程及工程热物理—热能工程]