桦木木垛火羽流竖直方向烟颗粒形貌特征
发布时间：2019-04-21 15:36
【摘要】：为研究桦木木垛火羽流竖直方向烟颗粒的形貌特征,利用自行搭建的小尺寸试验平台开展试验,采集不同采样高度处的烟颗粒,结合场发射扫描电镜(SEM)图像,通过相关的图像处理软件,分析烟颗粒形貌特征和尺度分布。研究表明:当采样高度不高于0.8m时,烟颗粒被表面大量焦油包裹而呈片状;当采样高度高于0.8 m时,随着采样高度的增加,附着在采样网上的焦油逐渐减少,烟颗粒逐渐显露出来;烟颗粒平均粒径分布在44~47 nm之间。
[Abstract]:In order to study the morphology and characteristics of smoke particles in the vertical direction of birch fire plume, the smoke particles at different sampling heights were collected by using a small scale test platform built by ourselves, and combined with (SEM) images of field emission scanning electron microscopy (SEM). The image processing software was used to analyze the morphology and size distribution of smoke particles. The results show that when the sampling height is less than 0.8 m, the smoke particles are coated with a large amount of tar on the surface and become flaky. When the sampling height is higher than 0.8m, the tar attached to the sampling net decreases and the smoke particles show gradually with the increase of sampling height, and the average particle size distribution of the smoke particles is between 44 nm and 47 min.
【作者单位】： 中粮集团中国粮油控股有限公司;中国计量大学质量与安全工程学院;
【基金】：国家自然科学基金资助(51306168) 浙江省自然科学基金资助(17E060004)
【分类号】：X932
本文编号：2462336
[Abstract]:In order to study the morphology and characteristics of smoke particles in the vertical direction of birch fire plume, the smoke particles at different sampling heights were collected by using a small scale test platform built by ourselves, and combined with (SEM) images of field emission scanning electron microscopy (SEM). The image processing software was used to analyze the morphology and size distribution of smoke particles. The results show that when the sampling height is less than 0.8 m, the smoke particles are coated with a large amount of tar on the surface and become flaky. When the sampling height is higher than 0.8m, the tar attached to the sampling net decreases and the smoke particles show gradually with the increase of sampling height, and the average particle size distribution of the smoke particles is between 44 nm and 47 min.
【作者单位】： 中粮集团中国粮油控股有限公司;中国计量大学质量与安全工程学院;
【基金】：国家自然科学基金资助(51306168) 浙江省自然科学基金资助(17E060004)
【分类号】：X932
【相似文献】
相关期刊论文 前10条
1 张文超,潘仁明,刘玉海,姚启龙;热气溶胶灭火剂扑灭固体木垛火的实验研究[J];火灾科学;2005年03期
2 余永刚,冯金莉,陆春义,周彦煌;细水雾与木垛火相互作用的实验研究[J];南京理工大学学报(自然科学版);2005年05期
3 李广志;;“二毛楞”遇险记[J];安全与健康;2011年23期
4 黄鑫;王喜世;廖光煊;郝爱玲;;双流体细水雾对木垛火的灭火特性研究[J];安全与环境学报;2010年05期
5 刘江虹,廖光煊,厉培德,陆强;细水雾与固体木垛火相互作用的实验研究[J];消防科学与技术;2004年01期
6 胡隆华,霍然,王浩波,李元洲,陆潜,杨立中;用CO浓度判别木垛燃烧从通风控制转为燃料控制的临界状态[J];燃烧科学与技术;2004年04期
7 孙守仁;;上任第一天[J];劳动保护;2006年01期
8 张小芹;宗若雯;方廷勇;王荣辉;廖光煊;;助燃剂对木垛火燃烧特性影响研究[J];中国工程科学;2007年02期
9 高玉臣;;隆冬也要防自燃[J];民防苑;2007年01期
10 潘振钦;自动喷水灭火系统设计中若干问题的探讨[J];福建建设科技;1997年04期
，本文编号：2462336
本文链接：https://www.wllwen.com/kejilunwen/anquangongcheng/2462336.html
