论文标题
圆槽的浓度比与平坦接收器
Concentration ratio for a circular trough with flat receiver
论文作者
论文摘要
我们提出了一个简单的分析公式，用于与平坦（平面）接收器耦合的圆槽光学浓缩器的几何浓度比。接收器的大小可实现全部收集（无溢出），以实现接受和边缘角的任何组合。该发展揭示了存在两个浓度比率的存在，一种是由边缘射线苛性剂控制的，另一个由仅轮辋的边缘射线的相交控制。值得注意的是，我们表明，在后一种边缘射线状态下，圆槽达到了与抛物线槽完全相同的几何浓度比。所提供的公式填补了针对不同浓度/接收器几何形状的完整浓度比公式目录的空白。
We present a simple analytical formula for the geometric concentration ratio of a circular trough optical concentrator coupled to a flat (planar) receiver. The receiver is sized to achieve full collection (no spillage) for any combination of acceptance and rim angle. The development reveals the existence of two concentration ratio regimes, one controlled by the edge ray caustics, and the other controlled by the intersection of the edge rays from the rim alone. Notably, we show that in the latter rim ray regime, the circular trough achieves the exact same geometric concentration ratio as a parabolic trough. The provided formula fills a gap towards the development of a complete catalogue of concentration ratio formulas for different concentrator/receiver geometries.
