| 王喜世,廖光煊,范维澄,秦俊.木材表面火蔓延特性的动态测量研究[J].火灾科学,2000,9(1):8-12. |
| 木材表面火蔓延特性的动态测量研究 |
| Dynamic Test Study on Flame Spread Characteristics Over Wood Surface |
| 投稿时间：1999-10-10 |
| 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:国家自然科学基金( 59876038) |
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| 中文关键词: 动态测量 温度示踪 火蔓延速率 |
| 英文关键词:Dynmic test Temperature tracing Flame spread rate |
| 摘要点击次数: 474 |
| 全文下载次数: 690 |
| 中文摘要: |
| 通过模拟实验 ,对不同工况下木材表面的火蔓延特性进行了动态测量研究。首先应用火焰结构显示技术连续观察和记录了木材表面的火蔓延行为和火焰的热结构 ;其次 ,利用温度示踪技术对火蔓延过程进行了动态观测 ,进而获取了在不同条件下的火蔓延速率并分析讨论了木材表面火蔓延的机理。实验研究表明 :在静止条件下 ,木材表面的火蔓延主要受辐射和热传导作用的控制 ,而在顺风条件下 ,对流传热传质则起重要作用 ,且在一定风速范围内 ,火蔓延速率随风速的增大而增大。 |
| 英文摘要: |
| The dynamic tests on flame spread characteristics over wood surface under different conditions were done through the simulation esperiments. Firstly,the flame spread behavior and it’s thermal structure of wood surface was observed and recorded. Secondly, the flame spread process was inspected in real time based on the techniques of temperature tracing. Thirdly,we obtained the spread rate under different conditions and analyzed the mechanics of flame spread over the wood surface. The experiment results show that the flame spread over wood surface was mainly controlled by radiation and heat reduction under static conditions. However,the convection,heat and mass transfer were mainly impacted the flame spread under the current flow conditions. |
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