摘要
综述了多年来热分析动力学中出现的温度积分近似式。在5≤u≤100范围内,对这些温度积分近似式进行了误差分析。在有理函数近似式中,优选出一个精确度比较高的温度积分近似式;在指数近似式中,优选出一个精确度比有理函数近似式稍低,但确定表观活化能等动力学参数却比较方便的温度积分近似式。
Approximate expressions for the temperature integral were reviewed, which had been used in the thermal analysis kinetics for many years. Error analysis of these approximations was carried out in the domain of 5 ≤ u ≤ 100. One approximate ra- tional expression with higher precision was selected from rational approximations; and the other approximate exponential expression was also singled out from exponential approximations, which had a low precision compared with most of the rational approximations, but was very convenient to determine the kinetic parameters （activation energy E and frequency factor A）.
出处
《辽宁化工》
CAS
2009年第8期554-557,560,共5页
Liaoning Chemical Industry
关键词
温度积分
近似式
非等温动力学
误差分析
Temperature integral
Approximate expressions
Non - isothermal kinetics
Error analysis
