实体CPC对太阳能激光器聚光效果的影响

The influence of solid dielectric CPC on concentration effect of solar laser

为了探究以焦距为1200 mm,尺寸为1400 mm×1050 mm的菲涅尔透镜为一级聚光器,实体CPC为二级聚光器的太阳能激光器聚光系统中实体CPC对聚光效果的影响,利用TracePro光学软件模拟分析了实体CPC不同填充材料,最大接收半角,与菲涅尔透镜的距离,以及上下端截取比对聚光效率和光斑均匀性的影响。结果表明:采用实体CPC能有效地提高总的聚光效率,填充材料为F13的实体CPC的最高聚光效率能达到64.1%,比全反射CPC的最大聚光效率高13.7%,但是光斑的均匀性有所下降。

The influence of solid dielectric compound parabolic concentrator on the concentrating effect of a solar laser concentration system was investigated.This concentration system consisted of a Fresnel lens as the first-order concentrator and a solid CPC as the secondary concentrator.The focus length of Fresnel lens is 1200 mm and the size is 100 mm×1050 mm.The effects of different filling materials,maximum acceptance angle,distance from Fresnel lens to solid CPC,upper and lower cut-off ratio on the concentration efficiency and spot uniformity were simulated by using TracePro optical software.The results show that the concentration efficiency can be effectively improved by using solid CPC.The highest concentration efficiency of solid dielectric CPC filled with F13 can reach 64.1%,which is 13.7% higher than the maximum concentration efficiency of total reflection CPC,while the uniformity of spot decreases.