| 低气压富氧环境对薄壁材料火焰传播速度的影响 |
| |
| 引用本文： | 刘应书,杨雄,沈民,张辉,刘文海,李永玲,郭广栋,葛铭霞.低气压富氧环境对薄壁材料火焰传播速度的影响[J].燃烧科学与技术,2010,16(3). |
| |
| 作者姓名： | 刘应书 杨雄 沈民 张辉 刘文海 李永玲 郭广栋 葛铭霞 |
| |
| 作者单位： | 1. 北京科技大学热能工程系,北京,100083
2. 青藏铁路公司劳动和卫生部,西宁,810007 |
| |
| 基金项目： | 国家科技支撑计划资助项目 |
| |
| 摘 要： | 通过模拟高原低气压环境,研究富氧环境下火焰沿薄壁材料表面传播速度的变化情况.研究表明,大气压力不变时,氧气体积分数越大,火焰传播速度越快;氧气体积分数不变时,火焰传播速度随着大气压力的增大而加快;维持氧分压为一定值时,大气压力越大火焰传播速度越小.大气压力为1 01.3 kPa、氧气体积分数分别为20.9%和23%时,火焰沿薄壁材料表面的传播速度为2.47 mm/s和3.01 mm/s,参照此速度得出了在不同大气压力下,火焰传播速度为2.47 mm/s和3.01 mm/s时对应的氧气体积分数.
|
| 关 键 词： | 氧气体积分数 火焰传播速度 薄壁材料 |
Effect of Low Barometric Pressure and Oxygen-Enriched Atmosphere on Flame Spreading Velocity over Thin Materials |
| |
| LIU Ying-shu,YANG Xiong,SHEN Min,ZHANG Hui,LIU Wen-hai,LI Yong-ling,GUO Guang-dong,GE Ming-xia.Effect of Low Barometric Pressure and Oxygen-Enriched Atmosphere on Flame Spreading Velocity over Thin Materials[J].Journal of Combustion Science and Technology,2010,16(3). |
| |
| Authors: | LIU Ying-shu YANG Xiong SHEN Min ZHANG Hui LIU Wen-hai LI Yong-ling GUO Guang-dong GE Ming-xia |
| |
| Affiliation: | LIU Ying-shu1,YANG Xiong1,SHEN Min2,ZHANG Hui1,LI Yong-ling1,GUO Guang-dong1,GE Ming-xua1(1. Department of Thermal Engineering,University of Science and Technology Beijing,Beijing 100083,China,2. Department of Labor and Health,Railroad Company of Qinghai-Tibet,Xining 810007,China) |
| |
| Abstract: | The phenomenon of flame spreading over thin materials under low barometric pressure and oxygen-enriched atmosphere was studied experimentally.The experimental results show that under a certain barometric pres-sure, the greater the oxygen volume fraction is, the faster the flames spread; when the volume fraction of oxygen is constant,the flame spreading velocity increases with the increase of barometric pressure;the flame spreading velocitydecreases with the increase of barometric pressure under a constant p... |
| |
| Keywords: | oxygen volume fraction flame spreading velocity thin materials |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
