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   solid fires 在 安全科学与灾害防治 分类中 的翻译结果: 查询用时:0.65秒
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solid fires
相关语句
  固体火
    Fire Suppression Mechanisms of Solid Fires with Water Mist
    细水雾抑制熄灭固体火的机理
短句来源
    Results show that fuel surface cooling is the key mechanism for extinguishing solid fires with water mist.
    实验结果表明,细水雾扑灭固体火主要依赖细水雾对燃料表面的冷却吸热.
短句来源
  固体火
    Fire Suppression Mechanisms of Solid Fires with Water Mist
    细水雾抑制熄灭固体火的机理
短句来源
    Results show that fuel surface cooling is the key mechanism for extinguishing solid fires with water mist.
    实验结果表明,细水雾扑灭固体火主要依赖细水雾对燃料表面的冷却吸热.
短句来源
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The LDV/APV system was employed to determine the water mist characteristics discharged from a single pressure nozzle.Small scale tests on the behavior of solid fires with different fuel characteristics suppressed by water mist were carried out in a 3 m×3 m×3 m enclosure.Results show that fuel surface cooling is the key mechanism for extinguishing solid fires with water mist.Under the same suppression condition,the charring solid fires are more easily to be extinguished than fires without...

The LDV/APV system was employed to determine the water mist characteristics discharged from a single pressure nozzle.Small scale tests on the behavior of solid fires with different fuel characteristics suppressed by water mist were carried out in a 3 m×3 m×3 m enclosure.Results show that fuel surface cooling is the key mechanism for extinguishing solid fires with water mist.Under the same suppression condition,the charring solid fires are more easily to be extinguished than fires without char.However more water is needed to cool down the charring solid fuel in order to prevent re-ignition.The relationship between mist flux and extinguishing time satisfies the marginal utility decreasing theory,which indicates that there exists an optimum mist flux to get the maximum efficiency.

利用三维激光粒子动态分析仪对细水雾喷嘴的雾场特性进行了测量,选择两种典型固体可燃物作为燃料,研究细水雾抑制熄灭固体火的过程,重点考察细水雾扑灭固体火的灭火机理.实验结果表明,细水雾扑灭固体火主要依赖细水雾对燃料表面的冷却吸热.相同灭火条件下,表面碳化型固体比非碳化型固体可燃物更容易被细水雾扑灭,但是前者在明火熄灭后,表面及内部残余炭仍能够维持较长的氧化燃烧,因此需要用更多的冷却时间来阻止复燃.细水雾通量对固体灭火时间的影响满足边际效用递减规律,并存在一个最佳值,即可利用最小细水雾通量获得最大灭火效率.

 
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