| 辐射方向对木材引燃特性影响的实验研究 |
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| 引用本文： | 杨立中,郄军芳,周晓冬,王亚飞,戴佳昆. 辐射方向对木材引燃特性影响的实验研究[J]. 工程热物理学报, 2010, 0(12) |
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| 作者姓名： | 杨立中 郄军芳 周晓冬 王亚飞 戴佳昆 |
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| 作者单位： | 中国科学技术大学火灾科学国家重点实验室; |
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| 基金项目： | 国家自然科学基金项目资助(No.50976111) |
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| 摘 要： | 在有点火源的条件下,对榆木在两种不同辐射方向下的热解和着火特性进行了研究,测定了不同外加热辐射强度、不同辐射方向下榆木的着火时间、表面温度、质量损失的变化规律。实验结果表明,榆木在水平方向下较垂直方向更容易着火,临界热流更小,着火表面温度更高,质量损失速率更小。
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| 关 键 词： | 热解 着火 辐射热流 辐射方向 引燃 |
AN EXPERIMENT STUDY OF RADIATION ORIENTATION EFFECT ON PILOTED IGNITION OF WOOD |
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| YANG Li-Zhong QIE Jun-Fang ZHOU Xiao-Dong WANG Ya-Fei DAI Jia-Kun. AN EXPERIMENT STUDY OF RADIATION ORIENTATION EFFECT ON PILOTED IGNITION OF WOOD[J]. Journal of Engineering Thermophysics, 2010, 0(12) |
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| Authors: | YANG Li-Zhong QIE Jun-Fang ZHOU Xiao-Dong WANG Ya-Fei DAI Jia-Kun |
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| Affiliation: | YANG Li-Zhong QIE Jun-Fang ZHOU Xiao-Dong WANG Ya-Fei DAI Jia-Kun (State Key Laboratory of Fire Science,USTC,Hefei 230026,China) |
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| Abstract: | The effect of radiation orientation on pyrolysis and piloted ignition of Elmwood under different heat flux has been experimentally investigated.Two orientations were selected,vertical or horizontal,according to the geometry of materials in the actual fire scene.Ignition time,surface temperature profiles,mass loss rate and critical heat flux were all measured in the experiments.Compared with the vertical orientation,the samples burned much easier and lower critical heat flux for pilot ignition, higher surfac... |
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| Keywords: | pyrolysis ignition heat flux radiation orientation piloted ignition |
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