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Performance evaluation of low concentrating photovoltaic/thermal systems: A case study from Sweden

Bernardo, Ricardo LU ; Perers, Bengt LU ; Håkansson, Håkan LU and Karlsson, Björn LU (2011) In Solar Energy 85(7). p.1499-1510
Abstract
Some of the main bottlenecks for the development and commercialization of photovoltaic/thermal hybrids are the lack of an internationally recognized standard testing procedure as well as a method to compare different hybrids with each other and with conventional alternatives. A complete methodology to characterize, simulate and evaluate concentrating photovoltaic/thermal hybrids has been proposed and exemplified in a particular case study. By using the suggested testing method, the hybrid parameters were experimentally determined. These were used in a validated simulation model that estimates the hybrid outputs in different geographic locations. Furthermore, the method includes a comparison of the hybrid performance with conventional... (More)
Some of the main bottlenecks for the development and commercialization of photovoltaic/thermal hybrids are the lack of an internationally recognized standard testing procedure as well as a method to compare different hybrids with each other and with conventional alternatives. A complete methodology to characterize, simulate and evaluate concentrating photovoltaic/thermal hybrids has been proposed and exemplified in a particular case study. By using the suggested testing method, the hybrid parameters were experimentally determined. These were used in a validated simulation model that estimates the hybrid outputs in different geographic locations. Furthermore, the method includes a comparison of the hybrid performance with conventional collectors and photovoltaic modules working side-by-side. The measurements show that the hybrid electrical efficiency is 6.4% while the optical efficiency is 0.45 and the U-value 1.9 W/m(2) degrees C. These values are poor when compared with the parameters of standard PV modules and flat plate collectors. Also, the beam irradiation incident on a north south axis tracking surface is 20-40% lower than the global irradiation incident on a fixed surface at optimal tilt. There is margin of improvement for the studied hybrid but this combination makes it difficult for concentrating hybrids to compete with conventional PV modules and flat plate collectors. (C) 2011 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Evaluate solar hybrids, Photovoltaic thermal concentrators, PVT
in
Solar Energy
volume
85
issue
7
pages
1499 - 1510
publisher
Elsevier
external identifiers
  • wos:000292445500022
  • scopus:79956118656
ISSN
0038-092X
DOI
10.1016/j.solener.2011.04.006
language
English
LU publication?
yes
id
0ec30871-6f63-43b6-991d-19c0332d2338 (old id 2092829)
date added to LUP
2011-08-25 13:01:09
date last changed
2017-10-01 04:05:45
@article{0ec30871-6f63-43b6-991d-19c0332d2338,
  abstract     = {Some of the main bottlenecks for the development and commercialization of photovoltaic/thermal hybrids are the lack of an internationally recognized standard testing procedure as well as a method to compare different hybrids with each other and with conventional alternatives. A complete methodology to characterize, simulate and evaluate concentrating photovoltaic/thermal hybrids has been proposed and exemplified in a particular case study. By using the suggested testing method, the hybrid parameters were experimentally determined. These were used in a validated simulation model that estimates the hybrid outputs in different geographic locations. Furthermore, the method includes a comparison of the hybrid performance with conventional collectors and photovoltaic modules working side-by-side. The measurements show that the hybrid electrical efficiency is 6.4% while the optical efficiency is 0.45 and the U-value 1.9 W/m(2) degrees C. These values are poor when compared with the parameters of standard PV modules and flat plate collectors. Also, the beam irradiation incident on a north south axis tracking surface is 20-40% lower than the global irradiation incident on a fixed surface at optimal tilt. There is margin of improvement for the studied hybrid but this combination makes it difficult for concentrating hybrids to compete with conventional PV modules and flat plate collectors. (C) 2011 Elsevier Ltd. All rights reserved.},
  author       = {Bernardo, Ricardo and Perers, Bengt and Håkansson, Håkan and Karlsson, Björn},
  issn         = {0038-092X},
  keyword      = {Evaluate solar hybrids,Photovoltaic thermal concentrators,PVT},
  language     = {eng},
  number       = {7},
  pages        = {1499--1510},
  publisher    = {Elsevier},
  series       = {Solar Energy},
  title        = {Performance evaluation of low concentrating photovoltaic/thermal systems: A case study from Sweden},
  url          = {http://dx.doi.org/10.1016/j.solener.2011.04.006},
  volume       = {85},
  year         = {2011},
}