Sökning: "fjärrvärmesystem"

Visar resultat 1 - 5 av 28 avhandlingar innehållade ordet fjärrvärmesystem.

  1. 1. Lokala fjärrvärmesystem

    Författare :Lena C. Olsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; district heating; radiator circuit; low radiator flow; local network; pressure separator; jet pump;

    Sammanfattning : The thesis Local district heating systems deals with a new concept for district heating. The district heating system is arranged as one main system and a number of local systems. The production plants and the main distribution lines belong to the main system. LÄS MER

  3. 2. Dynamik i fjärrvärmesystem

    Författare :Gunnar Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; district heating networks; heat load models; district heating systems; hydraulic transients; temperature dynamics; operational strategies;

    Sammanfattning : The purpose of this study is to gain understanding of the dynamic phenomena, which exist in district heating systems. Particularly, the importance of the network is noticed, where pressure waves and temperature waves play a major role. Most of the presented results are obtained by simulations. In many cases these are verified with measurements. LÄS MER

  4. 3. Temperaturdynamik i fjärrvärmesystem

    Författare :Gunnar Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  5. 4. Collaborative development of resource efficient district heating in Sweden

    Författare :Sofia Persson; Olof Hjelm; Sara Gustafsson; Mikael Ottosson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : An increased recovery of excess heat from industrial processes and thermal power generation could significantly reduce energy demands. Industrial excess heat-based district heating systems are generally considered resource efficient because they reduce the use of fossil fuels and the emissions of greenhouse gases. LÄS MER

  7. 5. Influences from Building Energy Efficiency Refurbishment on a Regional District Heating System

    Författare :Tina Lidberg; Louise Ödlund; Thomas Olofsson; Urban Persson; Högskolan i Gävle; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; District heating; energy efficiency; building refurbishment; greenhouse gases; primary energy; Fjärrvärme; energieffektivitet; byggnadsrenovering; växthusgaser; primärenergi; Hållbar stadsutveckling; Sustainable Urban Development; Reesbe företagsforskarskola;

    Sammanfattning : Improving energy performance of existing buildings is an important part in decreasing energy use and in turn reduce the greenhouse gas emissions caused by human activity and the primary energy use.To be able to evaluate how energy refurbishment influences the greenhouse gas emissions and the primary energy use a wider system perspective is needed that puts the building in its context. LÄS MER