Search for dissertations about: "turbocharger"

Showing result 21 - 25 of 50 swedish dissertations containing the word turbocharger.

  2. 21. Numerical computations of the unsteady flow in turbochargers

    Author : Fredrik Hellström; Laszlo Fuchs; Ricardo Martinez-Botas; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbochargers; turbine; compressor; unsteady pulsatile flow; perturbations; Large Eddy Simulation; Fluid mechanics; Strömningsmekanik;

    Abstract : Turbocharging the internal combustion (IC) engine is a common technique to increase the power density. If turbocharging is used with the downsizing technique, the fuel consumption and pollution of green house gases can be decreased. READ MORE

  4. 22. Injector Nozzle Hole Parameters and their Influence on Real DI Diesel Performance

    Author : Mikael Lindström; Hans- Erik Ångström; Öivind Andersson; KTH; []
    Keywords : Mechanical engineering; Maskinteknik;

    Abstract : A modern diesel engine is capable of running efficiently with low exhaust gas emissions over a wide operating range. This is thanks to techniques such as turbocharging, EGR, charge air cooling and an advanced fuel injection process. The fuel injection process is important for the combustion and emission formation in the diesel engine. READ MORE

  5. 23. Numerical Investigation of Radial Turbines Subject to Pulsating Flow

    Author : Roberto Mosca; Mihai Mihaescu; José Ramón Serrano; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk mekanik; Engineering Mechanics;

    Abstract : In the optic of a more sustainable society, research and development of highly efficient fluid machines represent a fundamental process to satisfy the rapidly growing energy needs of the modern world. Radial turbines are characterized by higher efficiencies for a larger range of inflow conditions compared to axial turbines. READ MORE

  6. 24. Acoustic modeling and testing of exhaust and intake system components

    Author : Yasser El Nemr; Hans Bodén; Antonio Torregrosa; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Intake and exhaust orifice noise contributes to interior and exterior vehicle noise. The order noise radiated from the orifice of the intake and exhaust systems is caused by the pressure pulses generated by the periodic charging and discharging process and propagates to the open ends of the duct systems. READ MORE

  7. 25. Optimal Control for Energy Efficient Vehicle Propulsion : Methodology, Application, and Tools

    Author : Viktor Leek; Lars Eriksson; Jan Åslund; Giorgio Rizzoni; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Transport is an integral part of society and one of its basic prerequisites. Society is now facing a transition as it must go from dependence on fossil fuels to sustainability. READ MORE