Sökning: "Fuel sprays"

Visar resultat 16 - 20 av 63 avhandlingar innehållade orden Fuel sprays.

  1. 16. Investigation of jet pulsation effects on near-nozzle mixing and entrainment

    Författare :Alexander Nygård; Laszlo Fuchs; Lisa Prahl Wittberg; Mireia Altimira; Xandra Margot; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sprays; Nozzle; Mixing; Pulsation; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : Turbulent jet flows are very common in engineering applications. One example is that of fuel injection in internal combustion engines, which is closely related to the combustion process. Because of the widespread use, the resulting emissions of such engines have a significant impact on human health and the environment. LÄS MER

  3. 17. Applications of Laser-Plasma Acceleration

    Författare :Kristoffer Svendsen; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; laser wakefield acceleration; betatron radiation; X-rays; X-ray imaging; phase-contrast imaging; VHEE; radiotherapy; radiography; fuel injector; tomography; beam focusing; atomizing sprays; nanowires; liquid mass; target normal sheath acceleration; applications; charged particles;

    Sammanfattning : This thesis is dedicated to the investigation of laser-plasma particle acceleration concepts. Some of the work was focused on improving electron and proton acceleration for future applications, in terms of maximizing the particle energy and minimizing the divergence of the X-ray beams. LÄS MER

  4. 18. Modelling and simulation of diesel sprays : Lagrangian multicomponent fuel treatment

    Författare :Anna Häggström; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 19. Methanol Diesel Dual Fuel Direct Injection in a HD-CI Engine

    Författare :Michael Saccullo; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alcohol Fuels; Heavy Duty Engine; Dual Fuel; Combustion;

    Sammanfattning : Laws concerning emissions from heavy duty (HD) internal combustion engines are becoming increasingly stringent. New engine technologies are needed to satisfy these new requirements and to reduce fossil fuel dependency. LÄS MER

  7. 20. Optical Diagnostics of Soot in Combusting Sprays

    Författare :Raul Lima Ochoterena; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical diagnostics.; Laser Induced Incandescence LII ; Elastic Light Scattering ELS ; Soot formation; Flame temperature; Spray combustion; Light Extinction LE ;

    Sammanfattning : Optical diagnostics in combusting diesel sprays were carried out in the Chalmers High Pressure, High Temperature (HP/HT) spray rig at conditions similar to those in an internal combustion engine, reaching up to 100 bar and 630 ◦ C. Spray development studies and combustion characterisation were done by high speed shadowgraphs that were digitally processed to measure the start of combustion, break-up, droplets and vapour penetration. LÄS MER