摘要
利用热电偶汽油喷灯等实验装置,在不同火源温度、不同火源滞留时间条件下,对大兴安岭地区的兴安落叶松树皮内温度变化进行测定。结果表明:温度60℃达到树皮的深度与滞留时间呈线性关系;不同滞留时间下树皮深度及火源温度对树皮内形成层温度变化的分析,建立了树皮的60℃死亡层的推进深度(D60)与火源温度、滞留时间的函数模型。
The temperature changes in bark of Larix gmelinii forest bark under different heat sources and different retention time were determined by thermocouple. When the flame reached 60 ℃,the depth of combustion was linear with the time of flame retention time. The depth of the bark and the temperature of the flame were analyzed in the layers of the cambium.The depth value of 60 ℃ was determined by the analysis of linear internal difference method. At last,the relationship between the propulsion depth of the 60 ℃ dead layer,and the function model of flame temperature baking time was proposed.
作者
刘迪
郭妍
胡海清
Liu Di;Guo Yan;Hu Haiqing(Northeast Forestry, University, Harbin 150040, P. R. China)
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2018年第5期38-43,73,共7页
Journal of Northeast Forestry University
关键词
兴安落叶松
树皮
热量传递
Larix gmelinii
Tree bark
Heat transmission