| 陈晓军,季经纬,杨立中,邓志华.外界热辐射作用下木材热解和着火的预测模型[J].火灾科学,2002,11(3):147-151. |
| 外界热辐射作用下木材热解和着火的预测模型 |
| Mathematical Model for Prediction of Pyrolysis and Ignition of Wood Under External Heat Flux |
| 投稿时间：2002-04-07 修订日期：2002-05-01 |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| DOI：10.3969/j.issn.1004-5309.年.期.顺序 |
| 基金项目:国家自然科学重点基金资助项目(59936140);青年基金资助项目(50006012) |
|
| 中文关键词: 热解 着火时间 模型 |
| 英文关键词:pyrolysis time to ignition model |
| 摘要点击次数: 701 |
| 全文下载次数: 1043 |
| 中文摘要: |
| 在突发的火灾过程中 ,可燃性固体材料的着火时间和热解特性是非常关键的参数。建立了预测木材在外界热辐射作用下热解和着火时间的数值模型 ,可以给出固体的质量损失速率、内部温度场随时间的变化 ,并根据模型计算得到的表面温度随时间的变化对着火时间进行预测。计算结果和实验测量值相符较好. |
| 英文摘要: |
| The pyrolysis and ignition of combustible materials are important processes taking place in an unwanted fire. A prediction model is presented in this paper to study the pyrolysis and ignition time of wood under external heat flux. The solution of the model provides the temperature at each point of the solid and the local solid conversion. And the time to ignition of the wood is predicted with the solution of surface temperature. Good agreements between experimental and theoretical results are obtained. |
| 关闭 |
