靜態式集光器不包含有太陽光路徑追跡器，成本較低，後續保養較為容易，但其整體集光效率較動態式集光器低，但為求太陽光集光器普及化，提升效率降低成本為我們首要考量，此篇論文中，我們設計一款靜態式集光器，透過平行光源打入單一直角稜鏡結構數學，分析其光線輸出入關係式，並且運用多個直角稜鏡結構堆疊，分析太陽光入射此堆疊結構之集光效率，藉由單一結構以及堆疊結構數學分析提出各稜鏡間之相互影響因子。透過影響因子之提出，找出最佳之直角稜鏡堆疊個數以及堆疊模式，並分析最佳太陽相對路徑，提出ㄧ稜鏡集光器改善模型，可提升原稜鏡堆疊之靜態式太陽光集光器整體效率值達44.796%。

Although a static solar concentrator does not include a sun tracking system, it has a low cost and is easy to maintain; however, its collection efficiency is lower than that of a dynamic concentrator. In this paper, we focus on the parallel light incident on a single right-angle prism in order to obtain the mathematic function of the input-output relationship which applicable to any cascade-structured model and single right-angle prism. We then propose a static prismatic solar concentrator whose design is based on cascading right-angle prisms whose axes are in different directions. We use a mathematic model to analyze the influence of the efficiency factor on the relationship between cascading right-angle prisms and the path of the sun. On the basis of our results, we conclude that the length of prism satisfies Li+1> Li with sunlight rotation in the y-z direction and the optimal number of cascading prisms is i = 3; using this result, an improved model whose total collection efficiency exceeds that of the original prismatic concentrator by 44.796% is realized.

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