| 热壁条件下油气的热着火现象 |
| |
| 引用本文： | 杜扬,欧益宏,吴英,张峥,蒋新生.热壁条件下油气的热着火现象[J].爆炸与冲击,2009,29(3):268-274. |
| |
| 作者姓名： | 杜扬 欧益宏 吴英 张峥 蒋新生 |
| |
| 作者单位： | 1.中国人民解放军后勤工程学院,重庆 400017; |
| |
| 摘 要： | 设计了高温热壁油气热着火实验系统，对受限空间油气混合气体在热壁条件下的热着火现象进行了实验研究。根据实验结果，详细讨论了油气混合物的着火方式、临界着火温度、着火压力范围以及体积分数、温度的变化规律。实验发现:热壁条件下油气混合物引燃分为油蒸气的热裂解-油气快速氧化反应-油气急速氧化反应3个阶段；油气混合物着火模式为燃烧、热爆燃和热爆炸；油气在汽油自燃点附近开始快速化学反应，热着火临界温度高于汽油自燃点近80 K；温度特征曲线在着火时具有突变性质；热壁温度达到783～873 K时，存在压力范围为2.2～17.6 kPa的三角形油气热着火压力半岛。
|
| 关 键 词： | 爆炸力学 热着火 热壁 油气 |
Thermal ignition phenomena of gasoline-air mixture induced by hot wall |
| |
| DU Yang,OU Yi-hong,WU Ying,ZHANG Zheng,JIANG Xin-sheng.Thermal ignition phenomena of gasoline-air mixture induced by hot wall[J].Explosion and Shock Waves,2009,29(3):268-274. |
| |
| Authors: | DU Yang OU Yi-hong WU Ying ZHANG Zheng JIANG Xin-sheng |
| |
| Institution: | 1.Logistic Engineering University of PLA, Chongqing 400017, China;2.Chongqing University of Science and Technology, Chongqing 401331, China |
| |
| Abstract: | A special experiment system was designed to carry out an experimental investigation about gasoline-air mixture ignition phenomena induced by the hot wall in a confined space.According to experimental results,the ignition manner of gasoline-air mixture,the critical ignition temperature and the ignition pressure region and the change laws of concentration,temperature in the course of fire were discussed in detail.It is found that the ignition course of gasoline-air mixture in the confined space is divided int... |
| |
| Keywords: | mechanics of explosion thermal ignition hot wall gasoline-air mixture |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《爆炸与冲击》浏览原始摘要信息 |
| 点击此处可从《爆炸与冲击》下载免费的PDF全文 |
|
