期刊论文

Influence of Wood Sample Forms on CONE Calorimeter Results

Hu, Yunchu

中文

林业科学

1001-7488

2016

52

3

75-81

10.11707/j.1001-7488.20160309

湖南省自然科学基金项目（2015JJ2204） 国家自然科学基金项目（31170521）

本校为第一且通讯机构

【目的】对比测试不同木材加工形态样本的的锥形量热(CONE)热释放特性参数,探究不同木材试样形态对CONE热释放特性参数的影响规律和作用机制,为CONE热释放特性参数选择、材料燃烧过程评估以及阻燃机制研究提供依据。【方法】在50 kW·m~(-2)热辐照功率下,通过CONE测定7种加工方式和形态不同杨木试样的热释放速率(HRR)及其峰值(PHRR)、总热释放量(THR)、有效燃烧热(EHC)等CONE热释放特性参数。【结果】通过分析不同木材试样热释放特性参数试验值的算术平均误差(ΔX)、相对误差(Er)和标准偏差(S)可知,在PHRR,MHRR,THR和MEHC4个热释放特性参数测定结果中,平均有效燃烧热(MEHC)的误差估算值最小,而P...

Objective: Cone calorimeter sample shape and size affect its experimental results. In order to clarify whether the powder samples are appropriate for CONE tests or not, seven different forms of wood samples were investigated by cone calorimeter. Study on the influence of sample shape and size on cone heat release parameters have important significance on selecting heat release parameters, evaluating combustion process and researching flame retardant mechanism. Method: Seven different processing methods and forms of wood samples were investigated by cone calorimeter under a heat flux of 50 kW&m...