一种非跟踪型太阳能复合聚光器的设计与实验研究

DESIGN AND EXPERIMENTAL RESEARCH OF A KIND OF NON-TRACKING SOLAR COMPOUND CONCENTRATOR

设计一种非跟踪型光电光热复合管以同时得到电能和热能,利用Matlab对聚光器曲线的形状进行优化并对结果进行数值仿真,对不同吸收体形状之间进行数据比较,得到最佳吸收体形状。给出不同入射角的光路图和下表面聚光比分布图,证明下表面得光也较均匀,可避免因高温热应力对太阳电池产生的损坏。最后实验测试下表面平均聚光比,与仿真的结果较为吻合。最后得出下表面三角形腰长为14.5 mm时最为合适并给出设计图。

A non-tracking solar PV/T tubular collector was designed to get electricity and heat at same time. Matlab software was used to optimize the curve shape of concentrator, numerically simulate the results and get the best shape of absorber. The optical path diagram for different incidence angle and the distribution map of the concentration ratio for bottom surface were given, which proved that received light in bottom surface was more uniform so that it could avoid the damage of solar cell caused by heat stress of high temperature. And the average concentration ratio of bottom surface was measured through the experiment, which was coincided with simulation results perfectly. Finally, the best waist length of 14.5 mm for triangle on bottom surface was got, the design chart was given.