Search for dissertations about: "ignition wave"

Showing result 1 - 5 of 10 swedish dissertations containing the words ignition wave.

  2. 1. Combustion characteristics of some alternative fuels in ICE: : a detailed numerical study

    Author : Siyuan Hu; Strömningsteknik; []
    Keywords : Combustion; duel fuel; methane; hydrogen; nheptane; methanol; DNS; simulation; openFoam; mixture-averaged; RCCI; ignition wave;

    Abstract : Two major fuels commonly used in compression ignition (CI) and spark ignition (SI) enginesare diesel and gasoline. The reserve of diesel and gasoline is limited, however the combustion ofthese fuels giving rise to air pollution. READ MORE

  4. 2. Numerical Studies of Methanol PPC Engines and Diesel Sprays

    Author : Mateusz Pucilowski; Strömningsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Methanol; Partially Premixed Combustion PPC ; spray-wall interaction; piston geometry; multiple injections; ICE; ignition front; diffusion flame; combustion mode; RANS; LES; PPC; Diesel spray;

    Abstract : The global environment suffers from utilizing fossil fuels to powering internal combustion engines (ICE), due to the massive amounts of released CO2. Besides the global impact, the local environments experience high concentrations of harmful pollutants such as NOx, CO, soot and particulate matter (PM). READ MORE

  5. 3. Combination of optical methods for studies in combustion and wave propagation

    Author : Roger Mattsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimentell mekanik; Experimental Mechanics;

    Abstract : In this thesis, different optical methods were combined for studies of combustion processes in gases and transient wave propagation in plates and water. Pulsed TV holography was used in all these projects. READ MORE

  6. 4. Nonlinear Evolution of Plasma Modes Driven by Fast Particles in Tokamaks

    Author : Grzegorz Galant; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In fusion plasmas, high-energy ions arising from plasma heating as wellas being generated in fusion reactions may lead to the occurrence ofwave micro-instabilities. The basic reason for these instabilities is thedeviation of the high-energy ions distribution function from the thermodynamicequilibrium. READ MORE

  7. 5. Lagrangian CFD Modeling of Impinging Diesel Sprays for DI HCCI

    Author : Per Strålin; Hans-Erik Ångström; Christian Kreuger; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; Diesel; early direct-injection; impinging nozzle; CFD; Lagrangian modeling; collision models; O’Rourke; Engineering mechanics; Teknisk mekanik;

    Abstract : The homogeneous charge compression ignition (HCCI) concept has been acknowledged as a potential combustion concept for engines, due to low NOx and soot emissions and high efficiency, especially at part-load. Early direct-injection (DI) during the compression stroke is an option when Diesel fuel is used in HCCI. READ MORE