Evaluating Leaking Area of Enclosure from Smoke Filling
Leaking flow of enclosure might bring harmful effects to building and affect gas flow under fire. During smoke filling in an enclosure with leakage, temperature distribution, pressure profile and conservation of mass will differ from those in enclosure without leakage. A simplified calculation procedure for estimating leaking area of enclosure was proposed based on consideration of mass conservation during smoke filling. An example was used to illustrate the procedure. Results showed that the procedure could be applied on evaluating leak tightness of the enclosures whose side leakage can be approximately regarded averagely distributed along its height. For enclosures with complicated leakage, the calculation procedure can also be applied after modifications.
leaking area pressure difference enclosure fire smoke filling
HUANG Ang XU Zhisheng YI Liang
Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha 410075, Hunan, China
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
707-714
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）