Sökning: "insulation capacity"
Visar resultat 1 - 5 av 19 avhandlingar innehållade orden insulation capacity.
Sammanfattning : The aim of the studies that comprise this thesis was to predict the heat loss over timefrom a range of district heating pipes insulated with closed-cells foam. The thermalconductivity of the foam changes over time when it is not diffusion-tight encapsulatedagainst the environment, as diffusion alters the cell gas composition until it reachesequilibrium with the surrounding air. LÄS MER
2. Polyethylene – metal oxide particle nanocomposites for future HVDC cable insulation : From interface tailoring to designed performanceDetta är en avhandling från Stockholm : KTH Royal Institute of Technology
Sammanfattning : Low-density polyethylene (LDPE) nanocomposites containing metal oxide nanoparticles are considered as promising candidates for insulating materials in future high-voltage direct-current (HVDC) cables. The significant improvement in dielectric properties compared with unfilled polymer is attributed to the large and active interface between the nanoparticles and the polymer. LÄS MER
- Detta är en avhandling från Stockholm : US-AB
Sammanfattning : Heavily insulated constructions are at present being used to strike at the vast energy consumption in residential buildings and commercial alike. They introduce a high-thickness layer of thermal insulation in the building envelopes. LÄS MER
- Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg
Sammanfattning : High-voltage cables are a critical component of tomorrow’s power grids that seamlessly integrate hydro, wind and solar power. Further improvements in transmission capacity of both high-voltage alternating- and direct-current, HVAC and HVDC, cables are likely reached through improved insulation materials. LÄS MER
5. Invändig tilläggsisolering : köldbryggor, fukt, rörelser och beständighet : thermal bridges, moisture problems, movements and durability = Internal additional insulationDetta är en avhandling från Byggnadsfysik LTH, Lunds Tekniska Högskola
Sammanfattning : The report deals with the problems which may be caused by internal additional insulation of an existing building component. Problems treated in this report are heat losses through and surface condensation at thermal bridges, condensation in the building components, stresses due to temperature and moisture content variations and possibly frost damage in facade materials. LÄS MER