灰渣的有效光学常数及辐射特性

EFFECTIVE OPTICAL CONSTANT AND RADIATIVE PROPERTY OF COAL SLAG

灰渣中各种成分对光学常数的影响不可忽略,本文基于电磁场平均的有效介质理论,利用Maxwell-Garnett、Bruggeman理论分别计算了人工合成灰渣的有效光学常数和辐射特性参数。计算结果表明有效介质理论适用于计算多组分合成灰渣的有效光学常数。针对本文所计算的合成灰渣,Bruggeman理论计算的平均辐射特性参数与实验值的相对误差较小。

The effect of multi-component on the optical constant of coal slag can not be ignored. Based on the effective medium theory （EMT） of mean electromagnetic field, the optical constant of synthetic coal slag was calculated respectively by MG and Bruggeman EMT. Computational results show that the EMT can be applied to compute the effective optical constant of synthetic coal slag with multi-component. For the synthetic coal slag considered in this paper, the relative errors between the Bruggeman theoretical value and the experiment value of the average radiation parameter are small.