Dai Yanjun, Li Xian, Zhou Lingyu, Ma Xuan, Wang Ruzhu
Opt Express. 2016 May 16;24(10):A966-73. doi: 10.1364/OE.24.00A966.
Concentrating the concept of a beam-down solar tower with linear Fresnel heliostat (PLCF) is one of the feasible choices and has great potential in reducing spot size and improving optical efficiency. Optical characteristics of a PLCF system with the hyperboloid reflector are introduced and investigated theoretically. Taking into account solar position and optical surface errors, a Monte Carlo ray-tracing (MCRT) analysis model for a PLCF system is developed and applied in a comparison-based study on the optical performance between the PLCF system and the conventional beam-down solar tower system with flat and spherical heliostats. The optimal square facet of linear Fresnel heliostat is also proposed for matching with the 3D-CPC receiver.
将带有线性菲涅耳定日镜的光束向下式太阳能塔（PLCF）的概念进行浓缩是可行的选择之一，并且在减小光斑尺寸和提高光学效率方面具有巨大潜力。理论上介绍并研究了具有双曲面反射器的PLCF系统的光学特性。考虑到太阳位置和光学表面误差，开发了一种用于PLCF系统的蒙特卡罗光线追踪（MCRT）分析模型，并将其应用于基于比较的PLCF系统与具有平面和球面定日镜的传统光束向下式太阳能塔系统之间的光学性能研究。还提出了线性菲涅耳定日镜的最佳方形小面，以与3D-CPC接收器匹配。
