中文摘要：

为了提高基于CCD测量火焰辐射能的精确性和实用性，以便将辐射能引入到锅炉燃烧控制系统中，本文根据CCD成像原理和辐射传热理论推导出计算火焰辐射能的机理模型，又依据此模型，利用大量的实验数据，应用非线性最小二乘法进行数据拟合，确定了模型中的未知参数，得到辐射能关于火焰图像RGB三基色值和火焰面积的函数关系，并验证了此函教关系式的精确性。实验结果表明：该拟合模型最大相对误差为1．38％，真实值与拟合值的相关系数为0．9978，其精度满足工业应用要求，具有较强的工程实践意义和应用前景。

英文摘要：

In order to improve the accuracy and usefulness of CCD-based measurement of Flame Radiant Energy （FRE） and apply it to the boiler combustion control system, a new method of obtaining FRE is proposed. According to the principle of CCD imaging and radiation heat transfer theory, the mechanism model of the FRE is derived. Then based on this model and a large number of experimental data, we can apply nonlinear least square method to identify those unknown parameters, so the function of FRE, RGB and the flame area can be determined. The experimental results show that the maximum relative error of the fitting model is 1.38%, and the correlation coefficient of the true values and the fitting values is 0.9978. The accuracy of the model meets the industrial application requirements with strong engineering practical importance and extensive application prospect.