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Thermal losses in sealed, gas-filled flat plate solar collectors
Dalarna University, School of Technology and Business Studies, Energy and Environmental Technology.
Dalarna University, School of Technology and Business Studies, Energy and Environmental Technology.
2007 (English)In: Solar World Congress, Peking, 2007, Vol. 1, 651-655 p.Conference paper, (Other academic)
Abstract [en]

A sealed space between absorber and cover glass makes it possible reducing the influence of humidity condensate and dust at the same time as the enclosed space can be filled with a suitable gas for lowering the losses. This paper is about the size of the losses in these collectors. A calculating model of a gas-filled flat plate solar collector was built in Matlab with standard heat transfer formulas. It showed that the total loss can be reduced up to 20% when changing to an inert gas. It is also possible using a much shorter distance and still achieve low losses at the same time as the mechanical stresses in the material is reduce.

Place, publisher, year, edition, pages
Peking, 2007. Vol. 1, 651-655 p.
National Category
Energy Engineering
Research subject
Energi, skog och byggd miljö, Högeffektiva solfångare för svensk produktion
Identifiers
URN: urn:nbn:se:du-3065OAI: oai:dalea.du.se:3065DiVA: diva2:521790
Conference
Solar World Congress , Peking, 18 -21 september, 2007
Available from: 2008-01-21 Created: 2008-01-21 Last updated: 2015-07-28Bibliographically approved

Open Access in DiVA

fulltext(75 kB)310 downloads
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Vestlund, JohanRönnelid, Mats
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf