Thermoelectric generation by solar light concentration using water lens

这项工作提出了水透镜仅由透明的薄片和水组成，它集中了太阳的光和热。计算和实验都证实了半圆柱形透镜可以聚光。给出了描述透镜形状的解析方程，并进行了数值求解。对垂直和倾斜辐照的折射率和射线追迹进行了评价。可以预测，当片材中填充一定量的水时，存在最优张力，当片材宽度固定为1m时，最大浓度比超过75。在模拟日出和日落时，还估计了斜射线的浓度效应。这些结果为柔性透镜的系统设计提供了依据。

This work proposes that water lens consists of only a transparent sheet and water, and that it concentrates the solar light and heat. Both calculation and experiments confirmed that a half-cylindrical lens could accumulate the light. Analytical equation describing the lens shape was given and solved numerically. The refraction and ray tracing were evaluated for the perpendicular and slant irradiations. It is predicted that there exists the optimal tension for an amount of filled water in the sheet, and that the maximum concentration ratio exceeds, for example, 75 if the width of sheet is fixed at 1m. The concentration effects for the slant ray were also estimated to simulate the sunrise and sunset. These results contribute to the system design of flexible lens corresponding to the solar dairy movement.