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接收器是决定线性菲涅尔式聚光集热系统光学效率的关键部件之一.设计了一种适用于高温介质(>500°C)的线性菲涅尔式聚光系统的接收器,由单根真空集热管和CPC组成,并重点研究了CPC最大接受半角和截取比选择对其性能的影响.研究结果表明:CPC汇聚率随最大接受半角的增大而缓慢增大;若截取比小于0.65,则CPC汇聚率急剧下降;最大接受半角为45°、截取比为0.75的CPC开口宽度为475.49 mm,汇聚率为80.15%;基于该CPC的系统光热效率为58.06%,由此得出CPC实际汇聚率高于78.42%.
The receiver is one of the key components that determine the optical efficiency of a linear Fresnel condenser system. A receiver for a linear Fresnel condenser system designed for high temperature media (> 500 ° C) Single vacuum tube and CPC, focusing on the impact of CPC maximum acceptance angle and interception ratio on its performance.The results show that the CPC aggregation rate increases slowly with the increase of the maximum acceptance half-angle; if the intercept ratio is less than 0.65, the CPC aggregation rate dropped sharply; the maximum acceptance angle of 45 °, the cut-off ratio of 0.75 CPC opening width of 475.49 mm, the convergence rate of 80.15%; based on the CPC system thermal efficiency of 58.06%, resulting in CPC The actual convergence rate higher than 78.42%.