| 马鸿雁,余明高,安安.超细水雾抑制酒精火有效性实验研究[J].火灾科学,2011,20(1):21-28. |
| 超细水雾抑制酒精火有效性实验研究 |
| Experimental study on the effctiveness of inhibiting alcohol fires by ultra-fine water mist |
| 投稿时间：2010-10-12 修订日期：2010-12-07 |
| 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:国家自然科学基金(50974055);教育部“长江学者和创新团队发展计划”(IRT0618);河南省高校新世纪优秀人才支持计划项目(2005HANCET-05) |
|
| 中文关键词: 超细水雾 热释放速率 抑制 有效性 |
| 英文关键词:Ultra-fine water mist Heat release rate Fire suppression Alcohol fire |
| 摘要点击次数: 665 |
| 全文下载次数: 738 |
| 中文摘要: |
| 为了研究超细水雾对酒精火的抑制效果,通过搭建超细水雾抑制受限空间酒清火燃烧的小尺寸实验平台,利用基于质量损失速率的热释放速率计算方法,研究超细水雾与酒精火焰相互作用时,酒精火火焰的变化规律及酒精火的热释放速率,与此同时,采用高速摄像仪对火焰进行拍摄,利用Matlab图像处理程序对采集的火焰图片剖面进行处理。研究发现:施加超细水雾后,不同雾通量,不同酒精预燃时间都对超细水雾抑制酒精火的有效性产生影响。另外,200ml/min雾通量的超细水雾要比150ml/min超细水雾抑制效果要明显,灭火时间提前52s。 |
| 英文摘要: |
| A small scale compartment was built in a confined space in order to study the validity of suppressing alcohol fires by ultra fine water mist.The flame profiles and heat release rates of alcohol fires were examined to study the interaction between ultra fine water mist and alcohol flame.At the same time,the photos of the flame were extracted by high speed camera,and then the Matlab image processing method was used to study the collected fire flame profiles.It was shown that both the mist flux and pre-ignition time may affect the validity of the fire suppression process.In addition,the suppression effect of 200ml/min ultra fine water mist was better than that of 150ml/min ultra fine water mist. |
| 关闭 |
