| 曹文娟,杜文锋.浸油沙层火焰传播速度研究[J].火灾科学,2012,21(4):181-188. |
| 浸油沙层火焰传播速度研究 |
| Flame spread on oil-soaked sand |
| 投稿时间：2012-09-17 修订日期：2012-10-06 |
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| DOI：10.3969/j.issn.1004-5309.年.期.顺序 |
| 基金项目: |
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| 中文关键词: 浸油沙层 火焰传播速度 沙层表面温度 辐射热通量 |
| 英文关键词:oil-soaked sand, flame propagation speed, temperature of the oil-soaked sand, radiated heat |
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| 中文摘要: |
| 使用0＃柴油和沙层作为燃料和地面模型，通过实验研究了泄漏液体燃料渗透在地面之后的火焰传播现象。详细研究了燃料床中沙粒直径、燃烧盘宽度及一端施加辐射热对火焰传播速度的影响，并使用热电偶测量了沙层表面火焰前沿到达时的温度以及沙层表面能够达到的最高温度。结果表明，燃料渗漏在地面的火焰传播速度明显低于液池火灾的火焰传播速度，且改变沙油质量比、燃烧盘的宽度及外界热辐射直接影响火焰传播速度。 |
| 英文摘要: |
| The flame spread over the ground soaked with spilled liquid fuel has been studied experimentally, using diesel oil as the fuel and a bed of sand as the ground model. The flame propagation speed was experimently studied by varying parameters of the mass ratio between sand and diesel oil, the width of steel tray and the radiated heat. The surface temperature of the oil-soaked sand as the flame arrived and the highest surface temperature of the oil-soaked sand were measured. It was found that the flame propagation speed over the fuel-soaked ground decreased considerably compared with that over the liquid fuel pool surface, and the flame propagation speed was affected by all the experimental parameters. |
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