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Thermal performance of 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.
2009 (English)In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 83, no 6, p. 896-904Article in journal (Refereed) Published
Abstract [en]

A sealed space between absorber and cover glass in a flat plate solar collector makes it possible to reduce 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 heat losses. This article describes the influence of different gases on the heat losses in a typical flat plate solar collector. A model of a gas-filled flat plate solar collector was built in Matlab with standard heat transfer formulas. The results show that the overall heat loss can be reduced by up to 20% when changing from air to an inert gas. It is further possible to reduce the distance between absorber and cover in order to reduce the mechanical stresses in the material with similar heat losses.

Place, publisher, year, edition, pages
Pergamon , 2009. Vol. 83, no 6, p. 896-904
Keywords [en]
Solar collectors; Modeling; Heat losses; Inert gases
National Category
Energy Engineering
Research subject
Energi, skog och byggd miljö, Högeffektiva solfångare för svensk produktion; Energi, skog och byggd miljö
Identifiers
URN: urn:nbn:se:du-4268DOI: 10.1016/j.solener.2008.12.005ISI: 000266893400013OAI: oai:dalea.du.se:4268DiVA, id: diva2:520107
Funder
Knowledge FoundationAvailable from: 2009-11-18 Created: 2009-11-18 Last updated: 2017-12-07Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • 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