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Mitigating the non-uniform illumination in low concentrating CPCs using structured reflectors

Hatwaambo, Sylvester; Håkansson, Håkan LU ; Roos, Arne and Karlsson, Björn LU (2009) In Solar Energy Materials and Solar Cells 93(11). p.2020-2024
Abstract
One problem in concentrating photovoltaic systems without active cooling is the formation of hot spots on the solar module cells. These hotspots are a result of uneven concentration of radiation within the solar module cells. The overall effect of concentrated heating is the reduction in the fill-factor of the solar module cell and the subsequent decrease in the overall efficiency of the system. In this paper, we investigate one alternative of improving the performance of a low concentrating photovoltaic system using semi-diffuse rolled reflective elements. Our results indicate that rolling marks on the reflector aligned parallel to the plane of the solar module cell improve the performance of the photovoltaic system. (C) 2009 Elsevier... (More)
One problem in concentrating photovoltaic systems without active cooling is the formation of hot spots on the solar module cells. These hotspots are a result of uneven concentration of radiation within the solar module cells. The overall effect of concentrated heating is the reduction in the fill-factor of the solar module cell and the subsequent decrease in the overall efficiency of the system. In this paper, we investigate one alternative of improving the performance of a low concentrating photovoltaic system using semi-diffuse rolled reflective elements. Our results indicate that rolling marks on the reflector aligned parallel to the plane of the solar module cell improve the performance of the photovoltaic system. (C) 2009 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Reflector materials, Fill-factor, Low concentration PV-systems, Light, scattering
in
Solar Energy Materials and Solar Cells
volume
93
issue
11
pages
2020 - 2024
publisher
Elsevier
external identifiers
  • wos:000273347700018
  • scopus:69949166177
ISSN
0927-0248
DOI
10.1016/j.solmat.2009.08.005
language
English
LU publication?
yes
id
fdadd414-b06d-4516-9750-8e0ef65025dd (old id 1546706)
date added to LUP
2010-02-25 13:15:20
date last changed
2017-05-21 03:52:54
@article{fdadd414-b06d-4516-9750-8e0ef65025dd,
  abstract     = {One problem in concentrating photovoltaic systems without active cooling is the formation of hot spots on the solar module cells. These hotspots are a result of uneven concentration of radiation within the solar module cells. The overall effect of concentrated heating is the reduction in the fill-factor of the solar module cell and the subsequent decrease in the overall efficiency of the system. In this paper, we investigate one alternative of improving the performance of a low concentrating photovoltaic system using semi-diffuse rolled reflective elements. Our results indicate that rolling marks on the reflector aligned parallel to the plane of the solar module cell improve the performance of the photovoltaic system. (C) 2009 Elsevier B.V. All rights reserved.},
  author       = {Hatwaambo, Sylvester and Håkansson, Håkan and Roos, Arne and Karlsson, Björn},
  issn         = {0927-0248},
  keyword      = {Reflector materials,Fill-factor,Low concentration PV-systems,Light,scattering},
  language     = {eng},
  number       = {11},
  pages        = {2020--2024},
  publisher    = {Elsevier},
  series       = {Solar Energy Materials and Solar Cells},
  title        = {Mitigating the non-uniform illumination in low concentrating CPCs using structured reflectors},
  url          = {http://dx.doi.org/10.1016/j.solmat.2009.08.005},
  volume       = {93},
  year         = {2009},
}