Abstract

It is necessary to consider the interrelation of absorption coefficients of emitting side and absorbing side when we carry out numerical predictions of radiative heat transfer through infrared-active gases. If we utilize the combination of a wide-band model and a narrow-band model for dealing with radiative heat transfer through a infrared-active gas that has remarkable narrow band nonumiformity, we have to consider the interrelation of absorption coefficient not only about the representative value within a narrow band but also about the fine structure in a narrow band. Calculation method for radiative transfer in nonisothermal field is constructed considering narrow band nonuniformity. It is compared with line-by-line calculation based on absorption line database HITEMP, and its validity is confirmed.

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