| 木材在锥形量热仪上的点燃实验研究 |
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| 引用本文： | 牛贵来.木材在锥形量热仪上的点燃实验研究[J].沈阳航空工业学院学报,2011,28(3):74-77. |
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| 作者姓名： | 牛贵来 |
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| 作者单位： | 驻马店市消防支队,河南驻马店,463000 |
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| 摘 要： | 利用锥形量热仪研究了外加辐射热流和电火花点火高度对木材着火时的点燃时间、表面温度、质量损失速率等点燃特征参数的影响,提出了室内火灾中木材点燃的临界质量通量判据。研究结果表明,增大外加辐射热流,木材点燃时间缩短,点燃的临界表面温度减小,但临界质量通量不变;增大电火花的点火高度,木材点燃时间延长,点燃的临界表面温度升高,临界质量通量增大;对于特定场所,可以用临界质量通量作为木材点燃的判据。
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| 关 键 词： | 木材 锥形量热仪 点燃判据 临界质量通量 |
Experimental Study on Wood Ignition in Cone Calorimeter |
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| NIU Gui-lai.Experimental Study on Wood Ignition in Cone Calorimeter[J].Journal of Shenyang Institute of Aeronautical Engineering,2011,28(3):74-77. |
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| Authors: | NIU Gui-lai |
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| Institution: | NIU Gui-lai (Zhumadian Fire Detachment,Henan Zhumadian 463000) |
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| Abstract: | With the cone calorimeter,the influence of external radiant heat flux and height of electric spark on characteristic wood ignition parameters such as ignition time,surface temperature,mass loss rate,etc.is studied and the critical mass flux as an ignition criterion in enclosure fires is proposed.The results show that the larger the external radiant heat flux added,the shorter the ignition time needs,the lower the critical surface temperature becomes,yet the critical mass flux remains the same;the higher the... |
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| Keywords: | wood cone calorimeter ignition criterion critical mass flux |
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