【摘要】 以毛竹为对象,利用锥形量热仪,在5 0kW·m- 2 的热辐射功率下,对毛竹去除竹青保留竹黄(去青)、去除竹黄保留竹青(去黄)以及竹杆上、中、下(保留竹青竹黄)不同部位的竹材进行了燃烧性能的测定,分析了它们的燃烧性。结果表明,点燃时间、第二释热峰出现的时间及峰值、质量损失速率与竹材两表面的去与不去有极显著线性相关关系;竹杆部位与点燃时间有极显著性,与质量损失速率(峰值)有显著相关,与第二释热峰出现的时间及峰值分别为无显著相关及有一定相关;比消光面积与竹材两表面的去与不去及竹杆部位无显著相关。更多还原

【Abstract】 In this paper, the burning behavior of different types of bamboo timber, such as various parts of the pole, bamboo timber without outer surface layer and bamboo timber without inner surface layer, was tested by cone calorimeter under the heat reflux of 50kW·m -2 . The results showed that both outer and inner surface layer of the bamboo pole significantly affected on igniting time, time at second heat release peak, heat release rate peak at second time, and mass loss rate. Igniting time and the mass loss rate were remarkably different for various parts of the bamboo pole. While, the parts of the bamboo pole did not affect the time at second heat release peak and the heat release rate peak at second time. Specific extinction area was not notably related to the outer surface layer, the inner surface layer and the various parts of the bamboo pole.更多还原