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通过对南昌8种森林可燃物的热重分析,石开究了其热解特性,并根据热解参数对其燃烧性中的易燃性、剧烈性和持续性3个维度进行评价.结果表明:8种森林可燃物可分为两大类厂类是香樟和油茶,易燃但燃烧相对不剧烈持,续时间短;另一类是鹅掌楸、银杏、雪松、桂花、楠竹、阴香,不易燃但燃烧相对剧烈和持续.燃烧性的3个维度的评价往往不相同,对于所研究的8种可燃物,一些可燃物易燃但不剧烈、不持续,另外一些可燃物不易点燃但燃烧剧烈或持续,说明了燃烧性内涵的复杂性和分维度评价燃烧性的必要性.3个维度的评价能够更完整地反映可燃物燃烧性的不同侧面,有助于更好地理解和解释森林可燃物的火行为.
According to the thermogravimetric analysis of 8 kinds of forest combustibles in Nanchang, the pyrolytic properties of the 8 kinds of forest combustibles in Nanchang were studied, and the three dimensions of flammability, dramatism and persistence in their combustibility were evaluated based on pyrolysis parameters. : 8 kinds of forest combustibles can be divided into two categories of plant camphor and camellia, flammable but relatively less severe burning, continued for a short time; the other is Liriodendron, ginkgo, cedar, osmanthus, bamboo, Non-flammable, non-flammable, but relatively flammable and persistent. The three dimensions of flammability are often evaluated differently, with some combustibles flammable but not violent, not persistent, and others not readily combustible for the eight combustibles studied Ignition but intense or persistent combustion illustrates the complexity of the flammability condi- tions and the need to evaluate the flammability by dimensionality.3 The evaluation of the three dimensions can more completely reflect the different flammabilities of combustibles and contribute to a better understanding And explain the fire behavior of forest combustibles.