Search for dissertations about: "empirical combustion modeling"

Showing result 1 - 5 of 9 swedish dissertations containing the words empirical combustion modeling.

  2. 1. Empirical combustion modeling in SI engines

    Author : Fredrik Lindström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spark ignited engines; combustion modeling; knock; 1D simulation; Wiebe; divided exhaust period; Engineering mechanics; Teknisk mekanik;

    Abstract : This licentiate thesis concerns the modeling of spark ignition engine combustion for use in one dimensional simulation tools. Modeling of knock is of particular interest when modeling turbocharged engines since knock usually limits the possible engine output at high load. READ MORE

  4. 2. Bio-diesel Spray Combustion Modeling Based on a Detailed Chemistry Approach

    Author : Junfeng Yang; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; engine modeling; bio-diesel; thermo-physical properties; detailed chemistry combustion; emissions formation; spray characteristics;

    Abstract : The increased use of bio-diesel fuel is expected to reduce emissions of carbon-containing greenhouse gases. To optimize the application of bio-diesel in internal combustion engines, a theoretical model has been developed. READ MORE

  5. 3. Numerical Simulation of Combustion and Gasification of Biomass Particles

    Author : Fatehi Hesameddin; Strömningsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermochemical Conversion; Pyrolysis; Gasification; Combustion; Biomass;

    Abstract : In this thesis, a numerical approach is adopted to study biomass thermochemical conversion. Detailed physical and chemical processes involved in the thermochemical conversion of biomass are considered. READ MORE

  6. 4. CFD modeling of biomass combustion and gasification in fluidized bed reactors

    Author : Miao Yang; Strömningsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass combustion and gasification; CFD simulation; Fluidized bed furnace; Distribution kernel method; Empirical pyrolysis model;

    Abstract : Biomass is an environmentally friendly renewable energy source and carbon-neutral fuel alternative. Direct combustion/gasification of biomass in the dense particle-fluid system is an important pathway to biomass energy utilization. READ MORE

  7. 5. Biodiesel Spray Combustion Modeling Based on a Detailed Chemistry Approach

    Author : Junfeng Yang; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reduction and Validation; Spray Characteristics; Detailed Chemistry; Biodiesel;

    Abstract : Replacing conventional diesel fuels with biodiesel has the potential to drastically reduce engine-out emissions of soot, carbon monoxide, and total unburnt hydrocarbons, at the cost of slightly increased nitrogen oxide emissions. However, to realize the full benefits of using biofuels in this way, there is a need for theoretical models describing their combustion in internal combustion engines. READ MORE