frequently occurs in non-isothermal kinetic analysis. Here E is the activation energy, R the universal gas constant and T the absolute temperature. The exponent m arises from the temperature dependence of the pre-exponential factor. This paper has proposed two new approximate formulae
for the generalized temperature integral, which are in the following forms:
where hm(x) is the equivalent form of the generalized temperature integral. For commonly used values of m in kinetic analysis, the deviations of the new approximations from the numerical values of the integral are within 0.2 and
0.03%, respectively. In contrast to other approximations, both the present approaches are simple, accurate and can be used
easily in kinetic analysis.