一种新型槽式太阳能CPV/T聚光器的光学传输特性  

Optical Transmission Characteristic of Novel Trough Type CPV/T Concentrator

作　　者：孟宪龙 刘备 段辰星 刘存良[1,2] Meng Xianlong;Liu Bei;Duan Chenxing;Liu Cunliang(School of Power and Energy,Northwestern Polytechnical University,Xi'an,Shaanxi 710072,China;Shaanxi Key Laboratory of Thermal Sciences in Aero-Engine System,Xi'an,Shaanxi 710072,China;Yangtze River Delta Research Institute,Northwestern Polytechnical University,Taicang,Jiangsu 215400,China)

机构地区：[1]西北工业大学动力与能源学院,陕西西安710072 [2]陕西省航空动力系统热科学重点实验室,陕西西安710129 [3]西北工业大学太仓长三角研究院,江苏太仓215400

出　　处：《光学学报》2021年第15期178-186,共9页Acta Optica Sinica

基　　金：国家自然科学基金(51806180);中国博士后科学基金(2018M641018);陕西省博士后科学基金(2018BSHTDZZ09)。

摘　　要：如何充分利用大开口面积下槽式抛物面聚光器(PTC)的全区域辐射能量是需要考虑的关键问题,为此提出一种新型槽式自由曲面太阳能聚光器(TFFC),利用光伏/光热同时收集的形式扩展PTC聚光器的开口利用面积,在靠近PTC内侧采用传统槽式换热器形式,外侧则基于边缘光线传输原理设计一种自由曲面聚光光伏系统,采用倾斜的方式使太阳能电池板扩展能量接收面积,并获得均匀性极佳的聚光能流分布。之后采用光线追迹方法验证了其光学特性,并与传统PTC系统进行对比以完成结构参数的敏感性分析和误差因素的探讨,所得结果对槽式太阳能集热器系统的改进优化具有重要意义。How to make full use of the full-area radiant energy of parabolic trough collector(PTC) under a large opening area is a key issue that needs to be considered. For this reason, a new trough free-form solar concentrato(TFFC) is proposed, which uses the form of photovoltaic/photothermal simultaneous collection to expand the PTC concentrator. The opening utilization area of the optical device adopts the traditional trough heat exchanger form on the inner side close to the PTC, and the outer side is based on the edge light transmission principle to design a free-form surface concentrating photovoltaic system, which uses an inclined method to expand the energy receiving area of the solar panel, and obtains a very uniform concentrating energy flow distribution. After that, the line tracing method is used to verify its optical characteristics, and compared with the traditional PTC system to complete the sensitivity analysis of structural parameters and the discussion of error factors. The results obtained are of great significance to the improvement and optimization of the trough solar collector system.

关 键 词：光学设计 自由曲面 太阳能聚光器 几何构造法 光线追迹法 能流分布 

分 类 号：TN929.11[电子电信—通信与信息系统]