摘要
为了解滇中地区防火树种旱冬瓜(Alnus nepalensis)的鲜叶及其各层凋落物的热解特性,选取旱冬瓜的鲜叶、L层、F层及H层凋落物分别进行热重实验,分析了样品的引燃温度、燃尽温度、失重率、燃烧特性指数、活化能和指前因子。结果表明:旱冬瓜鲜叶、L层、F层、H层凋落物的引燃温度分别为200℃、217℃、225℃、257℃,4种样品的燃烧性能由强到弱排序为:旱冬瓜鲜叶>L层>F层>H层。
In order to understand the thermal decomposition characteristics of fresh leaves and litter of Alnus nepalensis, fire resistant tree species in Yunnan central area. Alnus nepalensis fresh leaves, litters of L, F and H layers are selected for TG experiments. Through the analysis of ignition temperature and burn out temperature, weight loss rate and combustion characteristic index, activation energy and pre exponential factor, results show that the ignition temperature of Alnus nepalensis fresh leaves and L, F, H litter layers are 200℃ , 217℃ , 225℃ , 257℃ respectively. The combustion capability of the four samples are followed the order from strong to weak as Alnus nepalensis fresh leaf, L layer, F layer, H layer.
出处
《林业调查规划》
2016年第1期31-33,40,共4页
Forest Inventory and Planning
基金
国家自然科学基金地区项目(31260180)
关键词
旱冬瓜
鲜叶及其凋落物
热解动力学
燃烧特性指数
活化能
指前因子
Alnus nepalensis
fresh leaves and litter
thermal decomposition
combustion characteristic index
activation energy
pre -exponential factor
