THE ESTIMATE OF THE EFFECTIVE FUEL COMBUSTION VALUE OF FOREST COMMUNITY IN THE DAXINGAN MOUNTAIN

Under the condition of absolute dry, more than thirty forest fuel pararneters,ash content. extract and burning point were measured. By the method of regression step by step. we found an experience formula which can estimate effective fuel high combusti on value of forest community from the Daxingan Mountain,and then,By means of modifying moisture content. we gave an approximate formula about actual heat releasing of forest fuels in the forest fire behavior.

大兴安岭各种森林群落有效可燃物燃烧值的估算

在绝对干燥的条件下,测定从大兴安岭实地采集的30种森林可燃物的高燃烧值、灰分、抽提物、燃点等参数,利用逐步回归得到估算大兴安岭各种森林群落有效可燃物高燃烧值的经验公式,通过对含水率的修正,进而得到估算大兴安岭森林可燃物在林火行为中实际发热量的近似计算公式。

白栎次生薪炭林的工艺成熟与适宜采伐年龄

通过测定不同年龄杆材燃烧值及林分胸径生长,对都匀地区白栎薪炭林的工艺成熟结合经济效益进行初步分析,初步确定该地区白栎次生薪炭林的采伐年龄在达到8～12 a、林分平均胸径达到5～7 cm时为宜。

LPG+DME混合燃料的燃烧有效热量测试

采用家用LPG；燃气炉系统进行LPG＋DME混合燃料的燃烧有效热量测试。其结果表明，DME掺混比例受气候条件影响，综合技术、经济性考虑，DME掺混的适宜比例为20％；含20％DME的LPG＋DiME混合燃料在环境温度为20～25℃、30～35℃的有效热值分别是纯LPG燃料的91．05％、92．12％；DME的汽化可增强c5组分的汽化。