Sökning: "gasturbine"

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

  1. 1. Numerical and experimental investigation of a gasturbine model combustor with axial swirler

    Författare :Michael Bertsch; Strömningsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flashback; swirl; gasturbine; combustor; methane; hydrogen; LES; PLIF;

    Sammanfattning : This thesis presents the simulations of and experiments with the so-called CECOST burner. The CECOST burner is a gas turbine model combustor equipped with an axial swirler and placed in a laboratory for the lean premixed turbulent combustion of a range of fuels at atmospheric pressure. LÄS MER

  3. 2. High volumetric machining strategies for superalloy gasturbine components : Comparing conventional and nonconventional machining methods for efficient manufacturing

    Författare :Jonas Holmberg; Johan Berglund; Anders Wretland; Tomas Beno; Joel Andersson; Sten Johansson; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alloy 718; High volumetric machining; Conventional and Nonconventional machining; Material removal rate; Post processing; surface integrity; Residual stress; Microstructure; Deformation; Manufacturing; Surface and Joining Technology; Bearbetnings-; yt- och fogningsteknik; Production Technology;

    Sammanfattning : There is a strong industrial driving force to find alternative manufacturing technologies in order to make the production of aero engine components of superalloys even more efficient than it is today. Introducing new and nonconventional machining technologies, as well as enhanced utilisation of today's high volumetric manufacturing, allows taking a leap to increase the material removal rate and the productivity. LÄS MER

  4. 3. Analysis of gas turbine systems for sustainable energy conversion

    Författare :Marie Anheden; KTH; []
    Nyckelord :;

    Sammanfattning : Increased energy demands and fear of global warming due tothe emission of greenhouse gases call for development of newefficient power generation systems with low or no carbondioxide(CO2) emissions. In this thesis, two different gasturbine power generation systems, which are designed with theseissues in mind, are theoretically investigated and analyzed. LÄS MER

  5. 4. Induction bearings

    Författare :Torbjörn A. Lembke; KTH; []
    Nyckelord :;

    Sammanfattning : A self stabilizing homopolar induction bearing withintegrated touch down bearings has been developed forhigh-speed applications like flywheels, small gas turbines andcompact vacuum cleaners.Stability is achieved without any control electronics thanksto stabilizing eddy currents induced by permanent magnets. LÄS MER

  7. 5. Analysis of a gas turbine driven hybrid drive system for heavy vehicles

    Författare :Anders Malmquist; KTH; []
    Nyckelord :;

    Sammanfattning : The goal of this thesis has been to analyze the performanceand behavior of a gas turbine driven hybrid drive train. Thethesis covers both computer simulations and experimental tests.In two case studies, a number of measurements have been made ongas turbine driven hybrid vehicles that are developed by Volvoand ABB. LÄS MER