Sökning: "Combustion Techniques"

Visar resultat 1 - 5 av 46 uppsatser innehållade orden Combustion Techniques.

  1. 1. Combustion Simulations with reduced mechanisms using hybrid optimization

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Marius Burman Ingeberg; [2018]
    Nyckelord :Optimization; Reduced mechanism; Hybrid optimization; simulated annealing; Genetic algorithm; Physics and Astronomy;

    Sammanfattning : In order to simulate complex combustion systems, the kinetic mechanisms describing the chemical processes have to be reduced. To minimize the error introduced by the reduction, coefficients of the reaction rates included in the mechanisms can be adjusted in ways so that simulations using the reduced mechanism behave like simulations that use detailed mechanisms. LÄS MER

  2. 2. Development and Evaluation of a Tomographic Technique for Volumetric Imaging of Flames

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :David Sanned; [2018]
    Nyckelord :3D-Tomography; Additive Reconstruction Technique; Space Carving; Machine Vision Cameras; Imaging of Flame Models; Technology and Engineering; Physics and Astronomy;

    Sammanfattning : With modern day interest to continue the reduction of harmful emissions and improve the efficiency of combustion devices, the need to further improve upon accuracy and ability to describe combustive processes is of high value. Nowadays, multiple capable point (0D) and two-dimensional measurement (2D) techniques exist for flame investigation, however as combustion nearly always is a three-dimensional (3D) process some limitations do exist within many of these techniques. LÄS MER

  3. 3. Temperature measurement in flames using TLAF, alkali emission and OH UV absorption

    Magister-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Yuhe Zhang; [2018]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : There is a continued need for reliable and convenient nonintrusive thermometric techniques for better understanding and effective control of combustion related processes. In this thesis, three spectroscopic thermometric methods were studied to evaluate the hot flue gas temperatures provided by a multi-jet burner. LÄS MER

  4. 4. The impact of The Medium Combustion The impact of The Medium Combustiondioxide and nitrogen oxides prevention techniques

    H-uppsats, Chalmers tekniska högskola/Institutionen för rymd-

    Författare :Philip Mauritzson; [2018]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 5. Aerodynamic Design of Centrifugal Compressor for Heavy Duty Truck Applications

    Master-uppsats, Lunds universitet/Institutionen för Energivetenskaper

    Författare :Amanda Karlsson; [2018]
    Nyckelord :Centrifugal Compressor; Turbo; Turbocharger; Emissions; CO2; CFD; Volvo; Compressor; Impeller; Diffuser; Design; Aerodynamics; Aerodynamic; Truck; Transportation; Heavy Duty; Vehicle; Technology and Engineering;

    Sammanfattning : The transport sector is one of many markets facing new challenges in the pursuit of reduced greenhouse gas emissions. The people at Volvo Powertrain in Malmö are continuously working to develop new and improved techniques that are able to live up to the ever-increasing legislations. LÄS MER