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Heat transfer tests on EPS material and massive timber wall component
Dalarna University, School of Technology and Business Studies, Energy Technology.
Dalarna University, School of Technology and Business Studies, Energy Technology.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Timber walls are known to be an energy efficient component in the building envelope.

These building elements are essential in the passive design and have been pointed out to

their ability to regulate the indoor climate and reduce energy demand. Heat transfer

measurements of thermal transmittance value of Iso-timber wall component have been

performed with the climate chamber at three temperature differences. The influence of

temperature variations on the thermal conduction of the wall were investigated. The

temperature on the warm side was kept at room temperature 20 °C while the cold side

temperature was decreased from 0 C to -20 C during the tests. As the temperature

difference is increased, the thermal transmittance value of the timber wall component

decreased slightly due to decrease in the thermal conductivity value. The effect of density

and porosity on the thermal conductivity may be related to the presence of air voids and

cell boundaries inside the timber wall. Results have showed that the U-value of the timber

wall component decreases at higher temperature differences which indicates the higher

degree of insulation of the timber wall component.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Heat transfer – timber walls – climate chamber – EPS material – U-value measurements.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:du-28673OAI: oai:DiVA.org:du-28673DiVA, id: diva2:1254333
Available from: 2018-10-09 Created: 2018-10-09

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CiteExportLink to record
Permanent link

Direct link
Cite
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