XPS竖向燃烧特性试验研究  

Experimental study of the XPS vertical combustion characteristics

作　　者：潘荣亮[1,2,3] 朱国庆[1,2,3] 朱辉[1,2,3] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221116 [2]中国矿业大学煤矿瓦斯与火灾防治教育部重点实验室,江苏徐州221116 [3]中国矿业大学消防工程研究所,江苏徐州221116

出　　处：《消防科学与技术》2017年第2期153-156,共4页Fire Science and Technology

基　　金：江苏省自然科学基金项目(BK20131117);江苏高校优势学科建设工程项目(PAPD)

摘　　要：为了得到挤压型聚苯乙烯(XPS)在两面临空与贴壁两种工况下的竖向燃烧特性,利用锥形量热仪与自制竖向燃烧实验平台开展XPS竖向燃烧试验。测定两种工况下的质量损失率并推导出相应的热释放速率,测定贴壁工况XPS竖向热解速率随试样宽度的变化。结果表明,随着辐射通量的变化,XPS的有效燃烧热基本稳定在25.1 MJ/kg;两面临空工况下稳定阶段的质量损失率与热释放速率为贴壁工况的3倍;贴壁工况下,试样宽度为125mm左右出现热解速率最小值。In order to obtain the vertical combustion characteris- tics of extruded polystyrene （XPS） under two different condi- tions of two-side emptied and adherent, using cone calorimeter and selbmade vertical combustion experimental platform, XPS vertical combustion experiments were carried out. The mass loss rate under two conditions was measured, and the＇heat re- lease rate was deducted. The vertical pyrolysis rate changing with the sample width under the condition of adherent was measured. Results showed that, as though the radiation flux variation, the effective combustion heat of XPS settles in 25.1 MJ/kg; the mass loss rate and heat release rate under the con- dition of two-side emptied is 3 times of that under the condition of adherent; when adherent, in the width of about 125 mm there is a minimum value of the pyrolysis rate.

关 键 词：挤压型聚苯乙烯 有效燃烧热 质量损失率 热释放速率 热解速率 

分 类 号：X913.4[环境科学与工程—安全科学] TK121[动力工程及工程热物理—工程热物理]