摘要
与有焰火火灾相比,阴燃及其引起的火灾在实验和理论方面的研究较少,尤其是开敞室内空间全尺寸阴燃实验研究比较缺乏。该文基于ISO9705燃烧室自制的阴燃试验台,开展多孔可燃材料(聚氨酯软泡)阴燃实验,分析聚氨酯软泡在不同的热流强度条件下引燃温度和升温速率的变化规律,得到聚氨酯软泡在开敞条件下阴燃点燃过程中的化学变化过程和临界点燃温度。
Theoretical and experimental research on fire caused by smoldering reaction is insufficient in contrast with that on flame combustion. Especially the full-scale experimental study of smoldering com- bustion of porious combustible materical in open room is scarce. Based on experiments of cellular com- bustible material, polyurethane, on a self-made test-bed in an ISO9705 fire room, the change trends on both ignition temperature and heating rate are analyzed under different initial heating flux. Further, the chemical reaction and supercritical temperature of smoldering ignition in open space are obtained and ana- lyzed during the research.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第4期89-94,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省科技计划资助项目(2009B060700110
2010390004208082)
广东省安全生产专项资金资助项目(2008-17-A)
关键词
阴燃
多孔可燃物
开敞条件
引燃
smoldering combustion
cellular combustible material
open space
ignite
