Article ID Journal Published Year Pages File Type
5430840 Journal of Quantitative Spectroscopy and Radiative Transfer 2007 16 Pages PDF
Abstract

This paper presents the k-moment method, based on the calculation of the moments of the absorption coefficient, to calculate the blackbody-weighted transmission function for modeling narrow and wide band radiative properties of gases. The spectral averaging is performed on band widths of the order from 25 to 600cm-1. The spectrally averaged integral formulation of the radiative transfer equation is established and associated blackbody-weighted transmission function approximate expressions are derived from a series reversion technique. The second and third order k-moment formulations are assessed through comparisons with line-by-line reference results in the case of pure carbon dioxide at atmospheric pressure and for temperatures ranging from 300 up to 2300 K.

Related Topics
Physical Sciences and Engineering Chemistry Spectroscopy
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