Chen HX, Liu NA (2007) A procedure to approximate the generalized temperature integral. Journal of Thermal Analysis and Calorimetry 90(2), 449-452. [In English]

Web link: http://dx.doi.org/10.1007/s10973-006-7942-2

Keywords:

approximation; integral; kinetic analysis; non-isothermal; kinetics

Abstract: In the paper a new procedure to approximate the generalized temperature integral integral T-T(0)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 in 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.