Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE credits
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.
2018.
Heat transfer – timber walls – climate chamber – EPS material – U-value measurements.