Preliminary Study of Low Air Pressure Influence upon Standard Fires in Tibet

摘要：

Tibet is named as roof of tbe world or the third pole, with the rise in elevation, the oxygen content per-cubic meter of air declines to be about only 64％ of that in plain areas, thus its fire behaviour is different from other places and should be investigated. In Lhasa (altitude: 3650 m) and Hefei (altitude: 24 m), four standard fires were carried out in a standard compartment room respectively. The experimental results show that, in Lhasz, for all test fires, the mass loss rate decreases, the combustion time increases almost at an average value of 500 of that in Hefei, the average mass loss rates of all test fires are approximately proportional to the air pressure. While for CO emissions, except for TFI wood fire, in Lhasa and Hefei, the maximum values and development tendencies of CO emissions are approximate, indicating that the air pressure has no significant influence upon the CO concetration. Therefore low air pressure has individual influence upon different fire parameters in Tibet.

关键词： Tibet low air pressure carbon monoxide standard test fire

作者: FANG Jun YU Chunyu QIAO Lifeng ZHANG Yongming WANG Jinjun

作者单位: State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230026,Anhui,China

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 731-734

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）