Abstract
This paper is devoted to non-uniform approximations for the radiative properties of gases based on effective scaling factors. These methods are recognized as more accurate than other established techniques such as the Curtis-Godson approximation in statistical narrow band modeling, or the Correlated-k assumption. An analytical solution is proposed to calculate these scaling factors and a comprehensive description of the method to derive its parameters from high resolution spectra is given. Practical implications of the results of the present work are quite large, as non-uniform techniques based on effective scaling factors can be applied to any model form. The main value of this work is to render possible and computationally realistic the use of this category of non-uniform approximations for radiative heat transfer calculations.
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