Sökning: "High pressure"

Visar resultat 16 - 20 av 2322 avhandlingar innehållade orden High pressure.

  1. 16. Continuous Preventive Bridge Maintenance : Effect of High Pressure Washing on Concrete Bridges

    Författare :Louise Andersson; Johan Silfwerbrand; Anders Selander; Ylva Edwards; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bridge maintenance; preventive maintenance; chloride ingress; high-pressure washing; Concrete Structures; Betongbyggnad;

    Sammanfattning : In Sweden, as in many other countries, preventive maintenance of structures andbridges is considered important. It provides several benefits such as prolonged lifespan or service life, less need for repair, and hopefully reduced costs and lowerenvironmental impact.A large part of Sweden’s bridge stock is getting quite old. LÄS MER

  3. 17. Experimental Investigations of High Pressure Catalytic Combustion for Gas Turbine Applications

    Författare :Jeevan Jayasuriya; Torsten Fransson; Groppi Gianpiero; KTH; []
    Nyckelord :Gas Turbine Combustion; Catalytic Combustion; High Pressure; Ultra-low emissions; SRA - Energy; SRA - Energi;

    Sammanfattning : This work is devoted to generate knowledge and high quality experimental data of catalytic combustion at operational gas turbine conditions.The initial task of the thesis work was to design and construct a high pressure combustion test facility, where the catalytic combustion experiments can be performed at real gas turbine conditions. LÄS MER

  4. 18. High pressure and high temperature behavior of TiAlN

    Författare :Niklas Norrby; Magnus Odén; Mats Johansson Johansson; Helen Blomqvist; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : This licentiate thesis mainly reports about the behavior of arc evaporated TiAlN at high pressures and high temperatures. The extreme conditions have been obtained in metal cutting, multi anvil presses or diamond anvil cells. Several characterization techniques have been used, including x-ray diffraction and transmission electron microscopy. LÄS MER

  5. 19. Experimental Investigation of ultra-high fuel injection pressure spray for GDI engines

    Författare :Akichika Yamaguchi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spray; Spray imaging; Air entrainment; High Pressure; PIV; Spray tip penetration; GDI engine; PDI; drolet size;

    Sammanfattning : Gasoline Direct Injection Engines (GDI) for passenger cars currently use fuel injection systems operating at pressures of up to 350 bar. Injection pressures have increased over time, and there is evidence that particulate emissions could be reduced by raising them further, up to 500 bar. LÄS MER

  7. 20. Experimental investigation of molecular solids and vanadium at high pressure and temperature

    Författare :Zsolt Jenei; Reinhold Schuch; William Evans; Stefan Klotz; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; molecular solid; high pressure; vanadium; phase transition; Physics; Fysik; Physics Of Matter; materiefysik;

    Sammanfattning : Understanding high pressure effects on simple molecular system is of great interest for condensed matter science and geophysics. Accessing the static pressure and temperature regions found in planetary interiors is made possible by the development of the Diamond Anvil Cell technique. LÄS MER