RXI concentrator for 1000X photovoltaic energy conversion

被引：4

作者：

Alvarez, JL ^{[1
]}

Hernández, M ^{[1
]}

Benítez, P ^{[1
]}

Miañano, JC ^{[1
]}

机构：

[1] Univ Politecn Madrid, Inst Energia Solar, Madrid, Spain

来源：

NONIMAGING OPTICS: MAXIMUM EFFICIENCY LIGHT TRANSFER V | 1999年 / 3781卷

关键词：

concentration; nonimaging; measurements;

D O I：

10.1117/12.368258

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The purpose of this work is to present the measurements of the main characteristics of a series of RXI concentrators developed: angular transmission, acceptance angle, optical efficiency, and optical concentration. The RXI concentrator has been designed with the Simultaneous Multiple Surfaces (SMS) method developed by Minano et al. at the Institute de Energia Solar - Universidad Politecnica de Madrid (IES-UPM). The design characteristics are: geometric concentration 1256x, acceptance angle 1.8 degrees. A series of concentrators has been made by injection molding of PMMA. In them, it has been measured the surface profiles. The main effect of profile errors is the drop of acceptance angle to 1.5 degrees. The angular transmission curve has been measured at 890 nm.. From the measurements of current gain of AsGa cell situated inside of the RXI and from the computer simulation, we expect an optical efficiency greater than 80% for the manufactured devices. We have measured current gains for cells inside of the RXI greater than 1000. With the aid of a computer simulation program we analyzed optic losses of the device and the effect of the profile errors in the manufactured concentrators.

引用

页码：30 / 37

页数：8