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Movements and mechanical stresses in 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.
2008 (English)In: Eurosun 2008, Lissabon, 2008Conference paper, (Other academic) Published
Abstract [en]

Sealed gas filled flat plate solar collectors will have stresses in the material since volume and pressure varies in the gas when the temperature changes. Several geometries were analyzed and it could be seen that it is possible reducing the stresses and improve the safety factor of the weakest point in the construction by using larger area and/or reducing the distance between glass and absorber and/or change width and height relationship so the tubes are getting longer. Further it could be shown that the safety factor won't always get improved with reinforcements. It is so because when an already strong part of the collector gets reinforced it will expose weaker parts for higher stresses. The finite element method was used for finding out the stresses.

Place, publisher, year, edition, pages
Lissabon, 2008.
Keyword [en]
Solar collectors, modelling, mechanical stresses, Inert gases
Research subject
Energi, skog och byggd miljö, Högeffektiva solfångare för svensk produktion
Identifiers
URN: urn:nbn:se:du-4267OAI: oai:dalea.du.se:4267DiVA: diva2:522022
Conference
Eurosun 2008 , Lissabon, 7-10/10 2008, 2008
Available from: 2009-11-18 Created: 2009-11-18 Last updated: 2012-04-24Bibliographically approved

Open Access in DiVA

fulltext(378 kB)110 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