摘要
本文采用激光全息摄影技术记录激光加热下的单颗粒煤在某一时刻燃烧的全息图，通过再现系统和数字图象处理过程而获得二维的温度场分布，为研究煤的着火与燃烧的特性提供了一种新方法．同时采用了数学模型对几种煤从着火到燃尽时其周围的温度场进行计算，与实验进行了比较，得到了较为一致的结果．
The present paper measures the temperature fields around several Chinese coals during the ignition and combustion. The particle was heated by a CO2 laser beam and a holographic system was used to measure the temperature field around the particle. The heterogeneous ignition of an anthracite was observed while the homogeneous ignition was observed for a bituminous coal. A high temperature region leaving the particle surface was found for a bituminous coal. The temperature field around a fine particle during ignition and burnout will be measured in the next step.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1998年第5期642-646,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金
