Impact of shading on a flat CPV system for facade integration

被引：16

作者：

Bunthof, L. A. A. ^{[1
]}

Kreuwel, F. P. M. ^{[2
]}

Kaldenhoven, A. ^{[1
]}

Kin, S. ^{[2
]}

Corbeek, W. H. M. ^{[1
]}

Bauhuis, G. J. ^{[1
]}

Vlieg, E. ^{[1
]}

Schermer, J. J. ^{[1
]}

机构：

[1] Radboud Univ Nijmegen, Inst Mol & Mat, Appl Mat Sci, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands

[2] Wellsun, Molengraafsingel 12, NL-2629 JD Delft, Netherlands

来源：

SOLAR ENERGY | 2016年 / 140卷

关键词：

Building-integrated photovoltaics; Flat concentrating optic; Panel shading; Daylight regulation; CPV; III-V solar cells; PERFORMANCE ANALYSIS; CONCENTRATOR; PHOTOVOLTAICS; FABRICATION; DESIGN;

D O I：

10.1016/j.solener.2016.11.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Recently adopted energy efficiency policies in the EU induce a movement towards energy-neutral buildings. Building integrated photovoltaics technology connects with this ambition, as aside from the generation of electrical energy, it allows additional benefits such as heat generation, or daylight regulation by transmission of diffuse sunlight through transparent parts of the system. In this study three Concentrator Photovoltaic (CPV) system configurations that allow for the construction of semi-transparent building facade elements are investigated outdoor. The systems are a Fresnel lens based concentrator, a novel flat planar optic concentrator, and a 4 x 4 panel of these flat optics. The flat optic has no air cavity to account for optical focal depth which is highly beneficial when incorporated in a window. In particular the energy production of the systems when partially shaded is investigated, as adjoining systems will move behind one another during sun tracking, because the optics spacing must be small to achieve good daylight regulation. The planar optic concentrator is found to display similar performance as a Fresnel lens based concentrator of similar concentration. For a multi-receiver panel, shading introduces a loss of performance ranging from 7% to 12% which is attributed to electrical interconnection as individual receivers do not suffer this loss. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：162 / 170

页数：9

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