Sökning: "Chemkin"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet Chemkin.

  1. 1. Wall Related Lean Premixed Combustion Modeled with Complex Chemistry

    Författare :Johan Andrae; KTH; []
    Nyckelord :Wall effects; premixed flames; flame quenching; numerical modeling; chemkin; boundary layer approximation; gasified biomass; fuel-NOx; hybrid catalytic combustor.; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Increased knowledge into the physics and chemistrycontrolling emissions from flame-surface interactions shouldhelp in the design of combustion engines featuring improvedfuel economy and reduced emissions. The overall aim of this work has been to obtain afundamental understanding of wall-related, premixed combustionusing numerical modeling with detailed chemical kinetics. LÄS MER

  3. 2. Laser Diagnostics and Chemical Modeling of Combustion and Catalytic Processes

    Författare :Michael Försth; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; catalysis; platinum; OH; elastic light scattering; planar LIF; fuel spray; surface reactions; imaging; Chemkin; hydroxyl; stagnation flow; gas-phase chemistry;

    Sammanfattning : The H2+1/2O2 H2O reaction on hot platinum surfaces has been studied. A stagnation flow geometry was used with a gas mixture of H2 and O2 at subatmospheric pressures. LÄS MER

  4. 3. Numerical Studies of Wall Effects of Laminar Flames

    Författare :Johan Andrae; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wall effects; laminar premixed flames; Chemkin; boundary layer flow; Chemical engineering; Kemiteknik;

    Sammanfattning : Numerical simulations have been done with the CHEMKINsoftware to study different aspects of wall effects in thecombustion of lean, laminar and premixed flames in anaxisymmetric boundary-layer flow. The importance of the chemical wall effects compared to thethermal wall effects caused by the development of the thermaland velocity boundary layer has been investigated in thereaction zone by using different wall boundary conditions, walltemperatures and fuel/air ratios. LÄS MER

  5. 4. Laser diagnostics and modeling of the coupling between heterogeneous catalytic and gas-phase oxidation of hydrogen

    Författare :Michael Försth; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stagnation flow; hydroxyl; planar LIF; surface reactions; gas-phase chemistry; Chemkin; platinum; catalysis; OH; ignition conditions;

    Sammanfattning : .... LÄS MER

  7. 5. Catalytic combustion of hydrogen on a hot palladium catalyst studied by laser spectroscopy and kinetic modelling

    Författare :Åsa Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polycrystalline; platinum; combustion; microcalorimetry; desorption energy; laser-induced flourescence; palladium; surface reactions; reaction modelling; OH hydroxyl; Chemkin; sticking; catalysis; water formation;

    Sammanfattning : .... LÄS MER