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首页> 外文期刊>Journal of Thermal Analysis and Calorimetry >A procedure to approximate the generalized temperature integral
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A procedure to approximate the generalized temperature integral

机译:近似广义温度积分的过程

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摘要

In the paper a new procedure to approximate the generalized temperature integral $ intlimits_0^T {T^m } exp ( - E/RT)dT $ , which frequently occurs in non-isothermal thermal analysis, are presented. A series of the approximations for the temperature integral with different complexity and accuracy are proposed from the procedure. For commonly used values of m in kinetic analysis, the deviation of most approximations from the numerical values of the integral is within 0.7%, except the first approximation (within 4.0%). Since they are simple in calculation and hold high accuracy, the approximations are recommended to use in the evaluation of kinetic parameters from non-isothermal kinetic analysis.
机译:在本文中,提出了一种近似通用温度积分$ intlimits_0 ^ T {T ^ m} exp(-E / RT)dT $的新过程,该过程经常在非等温热分析中发生。从该程序中提出了一系列具有不同复杂度和精度的温度积分近似值。对于动力学分析中常用的m值,除第一近似值(4.0%以内)外,大多数近似值与积分数值的偏差都在0.7%以内。由于它们的计算简单且具有较高的精度,因此建议将其近似值用于非等温动力学分析的动力学参数评估中。

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