Category: Transient Plane Source
Abstract: This research investigates the core materials used to create vacuum insulation panels. Of particular interest to the investigators was the thermal conductivity of the initial materials (usually powders) under different pressures. The researchers designed their own powder sample cell holder which they used alongside the Hot Disk TPS for thermal analysis. The powders tested were low density silica powders, and using the sample set up the team was able to test them along a pressure range from atmospheric pressure to 0.1mbar. Clear trends in regards to thermal conductivity and pressure were established. The team compared the results obtained using the Hot Disk TPS with a Transient Hot Bridge Method and a hot plate apararatus.
Reference: Energy and Buildings 85 (2014) 199–211