Sökning: "combustion chamber"

Visar resultat 21 - 25 av 91 uppsatser innehållade orden combustion chamber.

  1. 21. Detection and Identification of Instability and Blow-off/Flashback Precursors in Aeronautical Engines using Deep Learning techniques

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Antony Hermann Guy Cellier; [2020]
    Nyckelord :Thermo-Acoustic Instabilities; precursors; Deep Learning; Speech Recognition.;

    Sammanfattning : The evolution of injection processes toward more fuel efficient and less polluting combustion systems tend to make them more prone to critical events such as Thermo-Acoustic Instabilities, Blow-Off and Flash-Back. Moreover, the addition of Di-Hydrogen as a secondary or as the main fuel is in discussion by aeronautical engines manufacturers. LÄS MER

  3. 22. Small-scale biogas : A techno-economic comparison of Internal Combustion Engines, Micro Gas Turbines and Stirling Engines

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Emil Sund; [2020]
    Nyckelord :;

    Sammanfattning : Gas driven power generation is expected to increase in the near future due to significantly lesser environmental impact than oppose to conventional fuels like coal and oil. Today, Natural Gas (NG) is the dominant product on the market and biogas, which originates from degradable organic waste, has not reached its full market potential due to bottlenecks in utilization. LÄS MER

  4. 23. Green Fuel Simulations

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Daniel Gutiérrez; [2020]
    Nyckelord :Industrial gas turbines; Combustion instabilities; Computational fluid dynamics; Acoustics; COMSOL Multiphysics; Flame transfer function;

    Sammanfattning : Many industries have entered a new global phase which takes the environment in mind. The gas turbine industry is no exception, where the utilization of green fuels is the future to spare the environment from carbon dioxide and NOx emissions. LÄS MER

  5. 24. Design Investigation into Liquid Oxygen Vaporisation Systems : Atomisation and Heat Loads

    Master-uppsats, KTH/Energiteknik

    Författare :Borbala Bernus; [2020]
    Nyckelord :LOx; gasification; two-phase CFD simulation; rapid oxidation; rocket; cryogenic; hybrid; atomisation; LOx; förgasning; 2-fas CFD-simulering; snabb oxidation; raket; kryogen; hybrid; atomisering;

    Sammanfattning : Computational Fluid Dynamics (CFD) simulations are presented within this study for super-cooled liquid oxygen atomisation and gasification in a subcritical chamber operating at 1MPa. Relatively low cost simulation techniques have been used and their accuracy evaluated. LÄS MER

  7. 25. Mapping and characterisation of surface damage and wear mechanisms in gun barrels : Gun barrels exposed to cyclic thermo-mechanical loading

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Martin Perkovic; [2020]
    Nyckelord :Wear; erosion; sliding wear; gun barrel; characterisation;

    Sammanfattning : Gun barrels are an important component in advanced defence systems. The gun barrels are used for direct and indirect fire and the material of the gun barrel is exposed to great strains and high temperatures. This sets high demands on the material of the gun barrel. During firing the gun barrel can be damaged. LÄS MER