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基于均质光滑球形粒子散射的Ｌｏｒｅｎｔｚ－Ｍｉｅ电磁理论，利用实验测得的煤粉粒子的复折射率，在假定粒径符合Ｒｏｚｉｎ－Ｒａｍｍｌｅｒ分布的基础上，计算了国产２０种动力煤煤粉粒子系的辐射特性参数。计算结果表明，Ｐｌａｎｃｋ平均衰减系数、散射系数、吸收系数与粒径分布参数（Ｒ９０，ｐ）、辐射源温度Ｔ、粒子系体积份额ｆｖ有关，并可拟合成如下函数形式：Ｋ＝ａｐｂＲ９０ｃ（Ｔ＋２７３．１５）ｄｆｖ。在温度（３００～１７００℃）范围内，拟合误差小于±１５％。图４表１参５
Based on the Lorentz-Mie electromagnetic theory of homogeneous and smooth spherical particles scattering, the pulsed refractive indices of pulverized coal particles are experimentally measured. Based on the Rozin-Rammler distribution, the 20 domestic pulverized coal particles Department of radiation characteristics of parameters. The calculated results show that Planck’s average attenuation coefficient, scattering coefficient and absorption coefficient are related to particle size distribution parameter (R90, p), radiation source temperature (T) and particle volume fraction (fv), and can be fitted into the following functional form: K = apbR90c T + 273.15) dfv. In the temperature range of 300 ~ 1700 ℃, the fitting error is less than ± 15%. Figure 4 Table 1 reference 5