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Evaluation of a Parabolic Concentrating PVT System

Bernardo, Ricardo LU ; Perers, Bengt LU ; Håkansson, Håkan and Karlsson, Björn LU (2008) Eurosun, 2008 In Proceedings of the 7th EUROSUN Conference
Abstract
The purpose of this study was testing and performance simulation of an innovative tracking hybrid solar system being developed by the Swedish Company Arontis. The Solar8 collector produces both electrical and thermal energy in one system. Its performance was compared with conventional photovoltaic panels and solar thermal collectors working side-by-side which are already on the market. The solar8 sample tested in Lund is a prototype designed for small demonstration projects and further development is ongoing. The evaluation shows that the thermal collector has an overall heat loss coefficient of 3.1 W/(m2.ºC), an optical efficiency of 65% and an electrical efficiency at 25ºC of 8% per active glazed area. If we account the total glazed area... (More)
The purpose of this study was testing and performance simulation of an innovative tracking hybrid solar system being developed by the Swedish Company Arontis. The Solar8 collector produces both electrical and thermal energy in one system. Its performance was compared with conventional photovoltaic panels and solar thermal collectors working side-by-side which are already on the market. The solar8 sample tested in Lund is a prototype designed for small demonstration projects and further development is ongoing. The evaluation shows that the thermal collector has an overall heat loss coefficient of 3.1 W/(m2.ºC), an optical efficiency of 65% and an electrical efficiency at 25ºC of 8% per active glazed area. If we account the total glazed area instead, the thermal collector has an overall heat loss coefficient of 2.5 W/(m2.ºC), an optical efficiency of 52% and an electric efficiency at 25ºC of 6%. The electric efficiency of the bare cells is 16%. Annual performance simulations were carried out for the Swedish (Stockholm), Portuguese (Lisbon) and Zambian (Lusaka) climate. From the simulations one can conclude that: Solar8 can be replaced by a traditional PV-thermal collector side-by-side system using less space and producing the same electric and thermal outputs; tracking around one axis placed in North-South direction is considerably better then tracking around an axis set on East-West direction; the global irradiation on a static surface is always higher when compared with the beam irradiation towards a tracking concentrating surface; the ratio between electric and thermal output decreases when Solar8 is moved to the equator. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Solar8, Solar Hybrids, Photovoltaic Thermal Concentrators, PVT
categories
Higher Education
in
Proceedings of the 7th EUROSUN Conference
pages
8 pages
publisher
Curran Associates, Inc
conference name
Eurosun, 2008
ISBN
9781617822285
project
International Energy Agency. Solar Heating and Cooling Programme
language
English
LU publication?
yes
id
9665936e-75fa-4676-822f-783b7a6a10f6 (old id 3351049)
date added to LUP
2014-04-28 11:25:29
date last changed
2016-04-16 10:14:10
@inproceedings{9665936e-75fa-4676-822f-783b7a6a10f6,
  abstract     = {The purpose of this study was testing and performance simulation of an innovative tracking hybrid solar system being developed by the Swedish Company Arontis. The Solar8 collector produces both electrical and thermal energy in one system. Its performance was compared with conventional photovoltaic panels and solar thermal collectors working side-by-side which are already on the market. The solar8 sample tested in Lund is a prototype designed for small demonstration projects and further development is ongoing. The evaluation shows that the thermal collector has an overall heat loss coefficient of 3.1 W/(m2.ºC), an optical efficiency of 65% and an electrical efficiency at 25ºC of 8% per active glazed area. If we account the total glazed area instead, the thermal collector has an overall heat loss coefficient of 2.5 W/(m2.ºC), an optical efficiency of 52% and an electric efficiency at 25ºC of 6%. The electric efficiency of the bare cells is 16%. Annual performance simulations were carried out for the Swedish (Stockholm), Portuguese (Lisbon) and Zambian (Lusaka) climate. From the simulations one can conclude that: Solar8 can be replaced by a traditional PV-thermal collector side-by-side system using less space and producing the same electric and thermal outputs; tracking around one axis placed in North-South direction is considerably better then tracking around an axis set on East-West direction; the global irradiation on a static surface is always higher when compared with the beam irradiation towards a tracking concentrating surface; the ratio between electric and thermal output decreases when Solar8 is moved to the equator.},
  author       = {Bernardo, Ricardo and Perers, Bengt and Håkansson, Håkan and Karlsson, Björn},
  booktitle    = {Proceedings of the 7th EUROSUN Conference},
  isbn         = {9781617822285},
  keyword      = {Solar8,Solar Hybrids,Photovoltaic Thermal Concentrators,PVT},
  language     = {eng},
  pages        = {8},
  publisher    = {Curran Associates, Inc},
  title        = {Evaluation of a Parabolic Concentrating PVT System},
  year         = {2008},
}