超环面-CPC组合系统的太阳能聚集特性分析

ANALYSIS OF CONCENTRATING CHARACTERISTIC OF TOROIDAL SURFACE-CPC COMPOSITE SYSTEM

结合光学软件比较分析了碟式抛物镜、菲涅尔反射镜、超环面聚光镜的聚集辐射性能,重点考察光线入射角度对光斑均匀性、聚光比等性能的影响。优化设计获得一种在聚光比、光斑均匀性、公差容忍度等性能方面都较优异的超环面-CPC组合系统,为太阳能聚集设备的创新设计提供了新思路。

The radiation concentrating characteristic of three kinds of concentrators, dish parabolic surface, Fresnel reflective surface and toroidal surface were compared and analyzed, especially. The effect of ray-incident angle on the uniformity of the focal flux distribution, concentration ratio and other performance parameters was discussed. A sort of system combining CPC and toroidal surface was presented by optimizing design, which had excellent performance in concentration ratio, the uniformity of the focal flux distribution and angle deviation tolerance. It may provide some references and thoughts for solar-concentrator design.