摘要
在ISO 9705标准燃烧室(3.6 m×2.4 m×2.4 m)中央放置不同大小的油池,完成了5组由6mm普通浮法玻璃构成的单层玻璃窗暴露向不同规模火源的全尺寸火灾实验.通过玻璃附近气体温度分布曲线可知,实验中玻璃窗处于与实际火灾非常相似的分层室内火灾环境中.给出了包括热释放速率、热辐射通量、玻璃附近气体温度分布、玻璃暴露表面温度、玻璃遮蔽表面温度、玻璃首次破裂时间和破裂模式等实验数据,分析了单层浮法玻璃火灾特性的相关规律.
Five full-scale fire tests in which a single glazing assembly with ordinary 6 mm thick float glass was exposed to different oil pan fires in the centre position of ISO 9705 room （3.6 m×2.4 m×2.4 m） were conducted. The glazing assembly was exposed to a two zone fire enclosure environment at each oil pan fire evident from the local gas temperature profiles. The results presented include heat release rates, heat flux, enclosure and local gas temperatures, exposed glass surface temperatures, shaded glass temperatures, first crack time and crack patterns. Data obtained were discussed,and conclusions of single float glass behavior in fires were drawn.
基金
国家自然科学基金重点基金(50323005)
国家重点基础研究发展规划项目(2001CB409603)资助
关键词
火灾
玻璃
温度分布
热辐射通量
fire
glass
temperature distribution
heat flux
