高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (7): 1096.

• 论文 • 上一篇    下一篇

动力学过程的精确模拟

张志英   

  1. 天津纺织工学院材料科学系, 天津 300160
  • 收稿日期:1995-06-22 出版日期:1996-07-24 发布日期:1996-07-24
  • 通讯作者: 张志英,男,37岁,副教授.
  • 作者简介:张志英,男,37岁,副教授.
  • 基金资助:

    天津市自然科学基金

Accurate Simulation of Kinetic Process

ZHANG Zhi-Ying   

  1. Department of Material Science, Tianjin Institute of Textile Science and Technology, Tianjin 300160
  • Received:1995-06-22 Online:1996-07-24 Published:1996-07-24

摘要: 采用加权最小二乘法更精确地模拟了化学动力学过程,结出了几种常见动力学模型的权重函数。用普通最小二乘法和加权最小二乘法对聚时苯二甲酸乙二酯的结晶动力学过程进行了处理。方差分析表明,两种加权最小二乘法的标准差均小于普通最小二乘法的标准差,所得斜率和截距也有明显不同,示出了模拟的相对结晶度及其导数曲线。

关键词: 动力学过程, 最小二乘法, 权重函数, 计算机模拟

Abstract: The kinetic processes of reaction can be accurately simulated by using the weighted least squares method.The weight functions of several kinetic models were derived.The crystallization kinetics of poly(ethylene terephthalate) was analyzed by using the general and the weighted least squares methods, The results of analysis of variance indicate that the standard deviations given by the weighted least squares methods are lower than those given by the general least squares method and the slopes and the intercepts simulated by the two methods are different obviously.The simulated curves of the relative crystallinity and its derivative versus time are illustrated.

Key words: Kinetic process, Least squares method, Weight function, Computer simulation

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