Sökning: "personbilar"

Visar resultat 11 - 15 av 19 avhandlingar innehållade ordet personbilar.

  1. 11. Ghosts of the Past or Facilitators of the Future? : Firm-System Interactions in the Transition to Electrified Goods Transportation

    Författare :Viktor Werner; Thomas Magnusson; Ksenia Onufrey; Solmaz Filiz Karabag; Peter Wells; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : If you visit Linköping, you have good chances to see electrified cars, or you may even take a ride on an electric city bus. However, you will have some difficulty spotting one of the very few electric trucks operating in the city. LÄS MER

  3. 12. Development of Transient Flamelet Library Based Combustion Models

    Författare :Harry Lehtiniemi; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; auto-ignition; conditional moment closure; Tabulated chemistry; flamelet; spray; non-premixed combustion; Fysicumarkivet A:2012:Lehtiniemi;

    Sammanfattning : Three different methods for Reynolds-averaged Navier-Stokes computational fluid dynamics modeling of non-premixed ignition and combustion using tabulated chemistry have been developed. All methods make use of flamelet libraries, where the flamelet auto-ignition process is parameterized using a progress variable. LÄS MER

  4. 13. Wet clutch tribology : friction characteristics in limited slip differentials

    Författare :Rikard Mäki; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : In recent years, electronically controlled automotive transmission systems, where wet clutches are used as intelligent differentials, have appeared in the market. These applications impose great demands on the transmission fluids and friction materials used as well as on controllability and vibration preventive (anti-shudder) properties of the clutch systems. LÄS MER

  5. 14. Combustion Bowl Heat Transfer Analysis in Diesel and PPC Engines

    Författare :Helgi Fridriksson; Värmeöverföring; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat Transfer; CFD; Internal Combustion Engine; Diesel; PPC;

    Sammanfattning : This thesis concerns a numerical investigation on heat transfer in internal combustion engines, with the aim of increasing engine efficiency. The efficiency gains are to be extracted from reduced heat transfer losses, by increasing the knowledge on how the heat transfer process is affected by various hardware and operational parameters in the engine. LÄS MER

  7. 15. Processes in Optical Diesel Engines - Emissions Formation and Heat Release

    Författare :Ulf Aronsson; Förbränningsmotorer; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Diesel Engines; Optical Engines; Heat Release; Combustion; Emissions Formation; Mechanical Deformation;

    Sammanfattning : This project deals with questions related to generic diesel combustion research and optically accessible engines are used to study the combustion process. Images of the combustion are analyzed together with in-cylinder pressure and exhaust gas emission measurements. LÄS MER