40种木本植物水分蒸发所需热能估算与燃烧性分类

The Evaluation of Need Power of Forty Woodplants Water Loss and the Classification of Flammability

在RothermelR .C .提出的预引燃所需能量方程的基础上 ,经进一步分析认为 ,该方程中的水分蒸发所需热能应表示为 :Qm=Mf·( 376 81 2 + 5 0 9 5 5 95ki) .在对 40种木本植物用该方程计算的水分蒸发所需热能的基础上 ,认为难燃的乔木树种有山桐子、化香、红豆杉、山楂、栾树、榛子和毛白杨 ,灌木种有胡颓子和海棠 ,其所需热能值 >76 0

An advanced analysis on the basis of the power equation that previous burning need proposed by Rothermel R.C. indicates that in this equation the power of water loss can be expressed as follows Q m=M f·(376 812+509 5595 ki ) Here M f is water content, ki is the ratio of 1 and water loss strenght. On the basis of computing the need power of water loss of the forty woodplants,the authors have found that hard burning arbor species are Idesia polycarpa, Platycarya serobilacea, Taxus chinensis, Crataegus prinnatifida, Corylus heterophylla, Koelreuteria paniculata and Populus tomentosa induding some brush species such as Elaeagnus pungens, and Malus hupehensis. The power value which they need is greater than 7600 kJ/kg.