| 不同升温方式下活化能分布热解模型的适用性 |
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| 引用本文： | 于娟,章明川,范卫东,周月桂,豆斌林. 不同升温方式下活化能分布热解模型的适用性[J]. 上海交通大学学报, 2003, 37(7): 1027-1030 |
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| 作者姓名： | 于娟 章明川 范卫东 周月桂 豆斌林 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200240 |
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| 基金项目： | 国家重点基础研究发展规划资助项目(G19990 2 2 2 0 9-0 4)，国家自然科学基金资助项目(5 0 0 760 2 5 )，教育部博士点基金资助项目(2 0 0 0 0 2 480 6) |
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| 摘 要： | 研究和推导了两类不同升温历程下活化能分布模型(DAEM)中动力学参数的确定方法，并用实验和文献数据对DAEM的适用性进行了讨论．结果表明，该方法可用于确定按线性规律和指数规律升温的热解动力学参数．由这些动力学参数所确定的DAEM模型，不仅能较好地描述热解失重的真实过程，而且适用于加热速率变化2～3个数量级的不同热解工况．
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| 关 键 词： | 活化能分布模型 热解 升温历程 动力学参数 |
| 文章编号： | 1006-2467(2003)07-1027-04 |
| 修稿时间： | 2002-06-26 |
Applicability of Distributed Activation Energy Model under Different Time-Temperature Histories |
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| YU Juan,ZHANG Ming chuan,FAN Wei dong,ZHOU Yue gui,DOU Bin lin. Applicability of Distributed Activation Energy Model under Different Time-Temperature Histories[J]. Journal of Shanghai Jiaotong University, 2003, 37(7): 1027-1030 |
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| Authors: | YU Juan ZHANG Ming chuan FAN Wei dong ZHOU Yue gui DOU Bin lin |
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| Abstract: | Distributed activation energy model (DAEM) is a macroscopical pyrolysis model suitable for extrapolating experimental data to engineering application. A method for determining the kinetic parameters in DAEM under linear heating history and exponential heating history was studied. It was found that this method is suitable to determine the pyrolysis kinetic parameters, and the predictions by DAEM with the determined parameters agree well with the experimental data from the present investigation and the literature. The results indicate that DAEM can not only be implemented to calculate the pyrolysis process, but also be applicable to heating rates varying 2 to 3 order of magnitudes. |
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| Keywords: | distributed activation energy model(DAEM) pyrolysis time temperature history kinetic parameter |
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