A New Study on Combustion Behavior of Pine Sawdust Characterized by the Weibull Distribution

查看全文 作　　者：Lo Kuo-[1]Chao;Wu Keng-[2]Tung;Chyang Chien-[1]Song;Ting Wei-[1]The

机构地区：[1]Department of chemical Engineering,Chung Yuan Christian University, ChungLi 32023, China;[2]Department of Forestry, National Chung Hsing University, Taichung 40227, China

出　　处：《Chinese Journal of Chemical Engineering》索引2009年第17卷第5期,共9页

基　　金：Supported by the Chung Yuan Christian University (CYCU-97-CR-CE) 摘　　要：An isothermal operation is implemented by employing a thermogravimetric analyzer (TGA) for simulating the thermal decomposition behavior of 58μm pine sawdust in air atmosphere.An independent parallel reaction model is adopted in this study to describe the thermal decomposition mechanism.The Weibull distribution function is used to record and analyze the weight loss during isothermal decomposition at different temperatures(500,600,700,and 800°C).The total weight loss of the pine sawdust is assumed as a linear combination of individual weight loss from three components,including the char and two volatile matters.The plot of the thermal decomposition rate curve leads to kinetic parameters such as the reaction rate constants and the reaction order.The results show that the Weibull distribution function successfully represents decomposition curves of three components,and fits the experimental data very well.Therefore,this study provides a simple way to evaluate the decomposition rate of biomass combustion in a real combustor. 关键词：燃烧行为松木屑威布尔分布 Weibull分布函数热分解行为特征反应速率常数实验数据拟合

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A New Study on Combustion Behavior of Pine Sawdust Characterized by the Weibull Distribution

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