Analysis of spectrum distribution and optical losses under Fresnel lenses
Analysis of spectrum distribution and optical losses under Fresnel lenses
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DOI：
10.1016/j.rser.2010.07.016
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发表时间：
2010-12
影响因子：
15.9
通讯作者：
N. Yeh
中科院分区：
文献类型：
--
作者：
N. Yeh
在20世纪70年代末和80年代初，菲涅耳透镜在太阳能应用领域受到了更多的关注。本文简要回顾了自20世纪70年代以来菲涅耳透镜的发展，并研究了线性菲涅耳透镜的固有损耗。本研究建立了线透镜的透过率损失和棱镜尖端散射损失的量化公式，并推导出一个真实的模型来模拟测量数据。此外，该研究还确定了最接近最小偏差条件的基于椭圆的透镜。这样的透镜精确地复制了最大透射所需的曲率。研究人员采用不同的设计波长，研究每个波长间隔对接收平面的贡献。
During late 1970s and early 1980s, Fresnel lenses have received more attention in the field of solar energy application. This paper briefly examines the Fresnel lens development since 1970s and investigates the losses inherent in the linear Fresnel lenses. The research develops the formulation that helps to quantify the linear lens’ transmittance loss and prism-tip scattering loss and then derive a realistic model to simulate the measured data. In addition, the research has identified an elliptical-based lens that comes closest to the condition of minimum deviation. Such lens closely duplicates the curvature needed for maximum transmission. The researcher applies different design wavelengths to study the contribution of each wavelength interval on the receiving plane.