Sökning: "thermal bridges"

Visar resultat 1 - 5 av 29 avhandlingar innehållade orden thermal bridges.

  1. 1. Thermal bridges

    Författare :Guofeng Mao; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal Bridges; Building engineering; Byggnadsteknik;

    Sammanfattning : .... LÄS MER

  3. 2. Advances in Thermal Insulation : Vacuum Insulation Panels and Thermal Efficiency to Reduce Energy Usage in Buildings

    Författare :Thomas Thorsell; Folke Björk; Mark Bomberg; Targo Kalamees; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vacuum insulation panels; VIP; serpentine edge; thermal bridge; composite film; gas diffusion; defect dominated; holistic approach; building enclosure; integrated testing and modeling; energy equivalent; field performance; air flow; thermal insulation efficiency;

    Sammanfattning : We are coming to realize that there is an urgent need to reduce energy usage in buildings and it has to be done in a sustainable way. This thesis focuses on the performance of the building envelope; more precisely thermal performance of walls and super insulation material in the form of vacuum insulation. LÄS MER

  4. 3. Concrete structures subjected to combined mechanical and thermal loading

    Författare :Ali Alavizadeh-Farhang; KTH; []
    Nyckelord :thermal stresses; concrete pavements; thermal action; concrete bridges; combined thermal and mechanical loads;

    Sammanfattning : .... LÄS MER

  5. 4. Robust and Durable Vacuum Insulation Technology for Buildings

    Författare :Peyman Karami; Folke Björk; Kjartan Gudmundsson; Jan Akander; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Vacuum Insulation panels VIPs ; Million Program; Energy saving; Thermal conductivity; thermal transmittance U-value ; Thermal bridges; Stationary and transient measurements; Dynamic simulations of heat and moisture conditions; Full scale measurement in climatic chamber; LCA; Vakuumisoleringspaneler VIP:ar ; Miljonprogrammet; Energibesparing; Värmeledningsförmåga; värmegenomgångskoefficient U-värdet ; Köldbryggor; Stationära och transienta mätningar; Dynamiska simuleringar av värme och fuktförhållanden; Fullskaleförsök i klimatkammare; LCA; Byggvetenskap; Civil and Architectural Engineering;

    Sammanfattning : Today’s buildings are responsible for 40% of the world’s energy use and also a substantial share of the Global Warming Potential (GWP). In Sweden, about 21% of the energy use can be related to the heat losses through the climatic envelope. LÄS MER

  7. 5. Restraint Effects in Concrete Bridges : A Study of Cracking due to Thermal Actions and Shrinkage in Portal Frame Bridges

    Författare :Erik Gottsäter; Avdelningen för Konstruktionsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tvång; Betong; Uppsprickning; Temperaturlast; Plattrambro; FE-analys; Restraint; Concrete; Cracking; Thermal action; Portal frame bridge; FE-analysis;

    Sammanfattning : Thermal actions and shrinkage cause volume changes in concrete structures. In structures which are restrained from movements, the restraint effects can cause cracking. However, when cracking occurs, the structure can deform to some extent, which reduces the restraint stresses and thus also the crack widths. LÄS MER