| 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. |
| 电缆表面粉尘自热行为数学模拟 |
| Mathematical Modelling on the Self heating Behaviour of Solid Powders around a Power Line |
| |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| DOI：10.3969/j.issn.1004-5309.年.期.顺序 |
| 基金项目: |
|
| 中文关键词: 电缆火灾 数学模型 粉尘自热 |
| 英文关键词:power line fires mathematical model powder self heating |
| 摘要点击次数: 419 |
| 全文下载次数: 629 |
| 中文摘要: |
| 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。以典型的煤粉尘为例，比较了有内热源和无内热源情况下的临界自燃条件，结果表明负载电缆表面粉尘极易发生自燃现象。 |
| 英文摘要: |
| 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. |
| 关闭 |
