Sökning: "Motors and propulsion systems"

Visar resultat 1 - 5 av 39 avhandlingar innehållade orden Motors and propulsion systems.

  1. 1. Thermodynamic Modelling and Performance of Combined Solid Oxide Fuel Cell and Gas Turbine Systems

    Detta är en avhandling från Department of Heat and Power Engineering, Lund university

    Författare :Jens Pålsson; Lund University.; Lunds universitet.; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vakuumteknik; vibrationer; akustik; Motors and propulsion systems; Motorer; framdrivningssystem; Gases; fluid dynamics; plasmas; plasma; hydraulik; Maskinteknik; vibration and acoustic engineering; hydraulics; vacuum technology; Modelling; Mechanical engineering; Solid oxide fuel cell; Hybrid system; Gaser; fluiddynamik;

    Sammanfattning : Solid oxide fuel cells (SOFCs) are a ceramic type of fuel cell operating at elevated temperatures. By utilising the thermal energy from the SOFC in a heat engine, a hybrid cycle with high performance can be achieved. One promising concept is a pressurised SOFC in combination with a recuperated gas turbine cycle. LÄS MER

  2. 2. Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines

    Detta är en avhandling från Department of Combustion Physics, Lund University

    Författare :Öivind Andersson; Lund University.; Lunds universitet.; [2000]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Motors and propulsion systems; LIF; Laser Diagnostics; Rayleigh Scattering; Fluorescence; Combustion; Pollutant; Nitric Oxide; Spray Combustion; DME; Laserteknik; Laser technology; Motorer; framdrivningssystem; Physics; Fysik; Fysicumarkivet A:2000:Andersson;

    Sammanfattning : Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. LÄS MER

  3. 3. Thermodynamic Simulation of HCCI Engine Systems

    Detta är en avhandling från Combustion Engines

    Författare :Olof Erlandsson; Lund University.; Lunds universitet.; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HAM; Turbine; Compressor; Turbocharger; Engine; Modeling; HCCI; Simulation; Motors and propulsion systems; Motorer; framdrivningssystem;

    Sammanfattning : This thesis focuses on engine system simulation using thermodynamics and chemical kinetic models to investigate the performance and efficiency of Homogeneous Charge Compression Ignition (HCCI) engines for stationary applications. It includes the development of software as well as models for engine, turbocharger, intercooler, inlet and exhaust manifolds, wastegate valve, inlet air humidifier, inlet air heater and more. LÄS MER

  4. 4. Combustion Engine Characterization and Development by Means of Laser Diagnostics

    Detta är en avhandling från Combustion Engines

    Författare :Mattias Richter; Lund University.; Lunds universitet.; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; framdrivningssystem; Laser technology; Laserteknik; plasma; fluiddynamik; Gaser; plasmas; Gases; fluid dynamics; Motorer; laser engine lif plif; Motors and propulsion systems; Fysicumarkivet A:2002:Richter;

    Sammanfattning : Planar laser induced fluorescence (LIF) has been utilized for two-dimensional imaging in combustion environments. By using tracer LIF the fuel distribution prior to ignition has been monitored in a GDI-engine. LÄS MER

  5. 5. HCCI Combustion - Engine Operation and Emission Characteristics

    Detta är en avhandling från Department of Heat and Power Engineering, Lund university

    Författare :Magnus Christensen; Lund University.; Lunds universitet.; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Motorer; framdrivningssystem; Motors and propulsion systems; efficiency; emissions; combustion; HCCI; engine;

    Sammanfattning : The potential and limitations of the Homogeneous Charge Compression Ignition (HCCI) engine concept has been experimentally investigated. The operation range, in terms of usable air/fuel ratio and engine load, and the emission characteristics have been studied. An 1. LÄS MER