Evaluation of Band Emissivities of Carbon Dioxide and Water Vapour

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概要

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• This paper describes an analytical procedure for getting the band emissivities of carbon dioxide and water vapour and also shows the results of calculations. The wavelength range is divided into four regions, where a strong band is included in one region respectively. The spectral absorption (or emission) coefficients of the bands are determined on the basis of total emissivities data of Hottel et al. coupled with the spectroscopic discussions about the location, width and contour of each band and the band emissivities are evaluated for both CO_2 and H_2O gases. The summations of the individual band emissivity correspond with the total emissivities of Hottel et al. throughout the parameters (temperature and optical length) of interest. Consequently these results are applicable to the problems of radiative heat transfer, taking into account the monochromatic distribution of energy, the evaluations of the emissivities of mixture gases, etc.

• 一般社団法人日本機械学会の論文

著者

• Echigo Ryozo

  Faculty Of Engineering Kyushu University

• HIRATA Masaru

  Faculty of Engineering, University of Tokyo

• Nishiwaki Niichi

  Faculty Of Engineering University Of Tokyo.

• Nishiwaki Niichi

  Faculty Of Engineering Seikei University.

• Hirata Masaru

  Faculty Of Engineering University Of Tokyo

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