摘要
采用多重扫描速率法中的Flynn-Wall-Ozawa方法对3种煤燃烧反应的活化能进行研究。发现计算出来的u(u=E/RT)并不完全落在区间[20,60]内,然而20≤u≤60是Flynn-Wall-Ozawa方法中的重要前提条件。所以对Flynn-Wall-Ozawa方法进行了改进,将20≤u≤60改为10≤u≤30。采用改进后的方法对3种煤的燃烧反应的活化能重新进行了计算,计算出来的u完全落在区间[10,30]内。
The activation energy in combustion reactions of three kinds of coal has been analyzed by Flynn-Wall-Ozawa method, which is one of the multiple scanning methods, We find that the calculated u is partly in the area from 20 to 60, while 20≤μ≤60 is the important precondition. So the Flynn-Wall-Ozawa method has been improved by 10≤μ≤30 instead of 20≤μ≤60. The activation energy in combustion reactions of three kinds of coal has been recalculated by the improved method and the calculated u is all in the area from 10 to 30.
出处
《电站系统工程》
北大核心
2007年第3期15-17,共3页
Power System Engineering
关键词
反应动力学
活化能
热分析
燃烧
kinetics
activation energy
thermal analysis
combustion
