Active cooling of low-concentrating hybrid PV/Thermal collectors
Document identifier: oai:dalea.du.se:2138
Publication year: 1999Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: A series of measurements on the performance of solar cell string modules with low-concentrating CPC reflectors with a concentration factor C ˜ 4X have been carried out. To minimise the reduction in efficiency due to high cell temperatures, the modules were cooled. Four different way of cooling were tested:
1) The thermal mass of the module was increased, 2) passive air cooling was used by introducing a small air gap between the module and the reflector, 3) the PV cells were cooled by a large cooling fin, 4) the module was actively cooled by circulating cold water on the back. The best performance was given with the actively cooled PV module which gave 2,2 times the output from a reference module while for the output from the module with a cooling fin the value was 1,8.
Active cooling is also interesting due to the possibility of co-generation of thermal and electrical energy which is discussed in the paper. Simulations, based on climate data from Stockholm, latitude 59.4°N, show that there are good prospects for producing useful temperatures of the cooling fluid with only a slightly reduced performance of the electrical fraction of the PV thermal hybrid system.
Authors
Mats Rönnelid
Högskolan Dalarna; Miljöteknik
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Bengt Perers
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Peter Krohn
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Lennart Spante
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Björn Karlsson
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header:
identifier: oai:dalea.du.se:2138
datestamp: 2021-04-15T12:26:01Z
setSpec: SwePub-du
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recordCreationDate: 2006-05-29
identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-2138
titleInfo:
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lang: eng
title: Active cooling of low-concentrating hybrid PV/Thermal collectors
abstract: A series of measurements on the performance of solar cell string modules with low-concentrating CPC reflectors with a concentration factor C ˜ 4X have been carried out. To minimise the reduction in efficiency due to high cell temperatures the modules were cooled. Four different way of cooling were tested:\n1) The thermal mass of the module was increased 2) passive air cooling was used by introducing a small air gap between the module and the reflector 3) the PV cells were cooled by a large cooling fin 4) the module was actively cooled by circulating cold water on the back. The best performance was given with the actively cooled PV module which gave 22 times the output from a reference module while for the output from the module with a cooling fin the value was 18.\n\nActive cooling is also interesting due to the possibility of co-generation of thermal and electrical energy which is discussed in the paper. Simulations based on climate data from Stockholm latitude 59.4°N show that there are good prospects for producing useful temperatures of the cooling fluid with only a slightly reduced performance of the electrical fraction of the PV thermal hybrid system.
language:
languageTerm: eng
genre:
conference/other
vet
note:
Published
5
name:
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Rönnelid
Mats
role:
roleTerm: aut
affiliation:
Högskolan Dalarna
Miljöteknik
nameIdentifier: mrd
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Perers
Bengt
role:
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namePart:
Krohn
Peter
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Spante
Lennart
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type: personal
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Karlsson
Björn
role:
roleTerm: aut
originInfo:
dateIssued: 1999
place:
placeTerm: Edmonton Canada
relatedItem:
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type: host
titleInfo:
title: North Sun
location:
url: http://du.diva-portal.org/smash/get/diva2:521622/FULLTEXT01.pdf
url: http://du.diva-portal.org/smash/get/diva2:521622/FULLTEXT02.pdf
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gratis
gratis
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form: electronic
typeOfResource: text