摘要
采用热重分析法对不同升温速率(10、20、30℃/min)下的煤粉燃烧特性进行研究,由热重数据进行煤粉燃烧特征参数和动力学参数的计算,分析升温速率对煤粉燃烧特性的影响。结果表明:随着升温速率的升高,着火温度和燃尽温度随之升高。煤粉燃烧出现热滞后现象,反应动力学参数随升温速率的变化而不同。
The combustion of the pulverized coal was investigated by thermogravimetric analysis under different heating rates. The coal combustion characteristic parameters and kinetic parameters were calculated by thermogravimetric data, and the effects of heating rate on the coal combustion characteristics were analyzed. The results showed that the ignition temperature and burn-out temperature of the coal powder rised with the increase of heating rate, and the coal combustion appeared thermal hysteresis. The kinetic parameters changed with the variation of heating rate.
出处
《中国粉体技术》
CAS
北大核心
2010年第6期71-73,共3页
China Powder Science and Technology
关键词
升温速率
燃烧特征参数
动力学参数
heating rate
combustion characteristic parameters
kinetic parameters
