| 电缆表面粉尘自热行为数学模拟 |
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| 引用本文： | 董希琳.电缆表面粉尘自热行为数学模拟[J].火灾科学,1998,7(3):24-27. |
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| 作者姓名： | 董希琳 |
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| 作者单位： | 武警部队学院消防工程系 |
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| 摘 要： | 建立了负载电缆表面粉尘自热过程的稳态传热数学模型，通过数值解讨论其自热行为。
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| 关 键 词： | 电缆 火灾 数学模型 粉尘自热 |
Mathematical Modelling on the Self heating Behaviour of Solid Powders around a Power Line |
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| DONG Xi-lin.Mathematical Modelling on the Self heating Behaviour of Solid Powders around a Power Line[J].Fire Safety Science,1998,7(3):24-27. |
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| Authors: | DONG Xi-lin |
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| Institution: | Department of Fire Protection Engineering, Institute of Fire Protection, Langfang, 065000 |
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| Abstract: | The mathematical models (For steady state heat transfer) which describe the self heating process of the solid powders around a working power line have been established. Then, the self heating behaviour of the powders was discussed by means of the numerical solutions of the models. Critical igniting conditions for the powders with and without inner heat sources were compared using a typical coal powder, which shows that the powders trending to self heationg around the line are very easy to ignite spontaneously. |
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| Keywords: | power line fires mathematical model powder self heating |
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