摘要
建立了不同聚光比和截短比时复合抛物面聚光器的物理模型,采用光线追迹技术和蒙特-卡罗(Monte Carlo)法应用Tracepro软件对聚光器的光学性能进行了计算。结果表明6倍聚光时太阳能电池表面的平均照强度可以达到4 500 W/m2,而且主要集中在电池的中间部位,2倍聚光时太阳能电池表面的平均光照强度达到1 200 W/m2。截短CPC的反射面高度可以降低其成本,2倍聚光的CPC截短高度的三分之一后聚光性能没有明显的变化,是一种较好的选择。
The physical models of CPC for different concentration radio are set up. The optical performance of the models are analyzed and calculated by the ray tracing technique and Monte Carlo method. The effects of the truncated ratio of the concentrator on the distribution of the solar radiation intensity at the surface of solar cell are discussed. The results show that the average solar incident intensity on the surface of the solar cell is 4 500 W/m2 at C=6,and the average solar incident intensity is 1 200 W/m2 at C= 2. In practical applications,a third portion of the top of a CP2 can be cut off with almost no loss in performance at C= 2, for economical reasons. Thus the CPC is the best choice for ifs better optical performance and lower cost.
出处
《能源技术》
2010年第4期194-197,共4页
Energy Technology
