定日镜场的输出热功率计算模型

Model for calculating the output thermal power of heliostat field

基于全国大学生数学建模竞赛赛题的定日镜场分布数据,根据太阳视运动方法,建立太阳跟踪运动模型、阴影挡光效率理论模型、相邻定日镜遮挡选取模型与镜面反射光锥模型,得出了定日镜场的年平均光学效率、年平均输出热功率,以及单位面积的镜面年平均输出热功率,最后通过输出功率的拟合结果展现了模型的合理性。

Based on the distribution data of the heliostat field of the CUMCM and the solar apparent motion meth⁃od,the solar tracking motion model,the theoretical model of shadow blocking efficiency,the model of neighboring helio⁃stat shading selection and the light cone model of specular reflection were established,and the corresponding average an⁃nual optical efficiency,the average annual output thermal power,as well as the average annual output thermal power per unit area of the mirror surface were obtained,and finally,the reasonableness of the model is shown by the results of the output power fitting.