燃焼ガス中灰粒子の熱放射物性の推定

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概要

• 論文の詳細を見る

• Monochromatic radiative properties of anisotropically scattering fly-ash polydispersions in combustion gas, such as the extinction coefficient, scattering coefficient, scattering albedo and Ledendre expansion coefficients for phase function, are calculated by the Mie scattering computer code with the monochromatic complex refractive index measured and arranged in the wavelength region of 0.7〜13μm and with measured on estimated bimodal particle distributions of fly ash. The extinction and absorption coefficients calculated for fly-ash polydispersions almost agree with the results obtained by small particle (x≪1) approximations when the Sauter diameter D_<32> for polydispersions is much smaller than the corresponding wavelength (x_<32><0.1), and they also agree with the complex refractive index near 1 (|m-1|≪1) approximations when D_<32> is much larger than the wavelength (x_<32>>10), but in the intermediate region (0.1<x_<32><10), exact numerical calculations of Mie scattering are required.

• 一般社団法人日本機械学会の論文
• 1992-09-25

著者

• 恩田 和夫

  工業技術院電子技術総合研究所

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• 燃焼ガス中灰粒子の熱放射物性の推定

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