Essays about: "Gas turbine rotor"

Showing result 1 - 5 of 13 essays containing the words Gas turbine rotor.

  1. 1. Performance Assessment of Electrical Motor for Electric Aircraft Propulsion Applications : Evaluation of the Permanent Magnet Motor and its Limitations in Aircraft Propulsion

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Mathias Beckman; Alex Christy Gerald Volden; [2019]
    Keywords : Electric Aircraft; Permanent Magnet Electrical Motor; Losses; Hybrid-Electric Propulsion System; Environment; Global Warming; Aircraft Emission;

    Abstract : This thesis project will evaluate which kind of electrical motor is best suited for aircraft propulsion and which parameters effect the efficiency. An economic analysis was conducted, comparing the fuel price (Jet A1) for a gas turbine and the electricity price for an electric motor of 1MW. READ MORE

  2. 2. Analysis of Barreling and Tolerance Effects of Blade Attachments

    University essay from KTH/Hållfasthetslära (Avd.)

    Author : Yuanyuan Xu; [2018]
    Keywords : ;

    Abstract : In a gas turbine rotor, the Blade-Disc attachment is often a critical part. This part needs to endure both high contact stress and high temperature. Thus, the prediction of the life of the attachment becomes important.  Furthermore, the refinement of the Blade-Disc attachment is worth to study, to extend the lifetime of the turbine rotor. READ MORE

  3. 3. Partially Parabolic Wind Turbine Flow Modelling

    University essay from KTH/Mekanik

    Author : Sebastian Haglund El Gaidi; [2018]
    Keywords : Wind turbine flow; Single wind turbine; Computational fluid dynamics; Partially parabolic Navier-Stokes equations; Finite difference method.;

    Abstract : Climate change is an evermore urging existential treat to the human enterprise. Mean temperature and greenhouse gas emissions have in-creased exponentially since the industrial revolution. But solutions are also mushrooming with exponential pace. READ MORE

  4. 4. CFD calculations and comparison with measured data in a film cooled 1.5 stage high pressure test turbine : With two configurations of swirlers clocking

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Ellen Hallbäck; [2018]
    Keywords : Turbine; CFD; Clocking configuration; Turbin; CFD; virvlareposition;

    Abstract : The gas turbine has an important role for the energy distribution due to its stability and flexibility. By increasing turbine inlet temperature (TIT) an increased thermal efficiency of the turbine can be achieved. The biggest limitation of the TIT is the material of the turbine components. READ MORE

  5. 5. Investigation and Validation of Cooling Loss Models for Axial Gas Turbines

    University essay from KTH/Energiteknik; KTH/Energiteknik

    Author : Jacob Händestam; Eric Jacobson; [2017]
    Keywords : axial gas turbines; one-dimensional; aerodynamics; cooling; losses; loss models; validation; axiella gas turbiner; endimensionell; aerodynamik; kylning; förluster; förlust modellering; validering;

    Abstract : Detta arbete behandlar undersökningen och valideringen av kylförlustmodellen i det nyligen framtagna programmet för endimensionell turbindesign, Mean Line Tool (MLT), skapat av Siemens Industrial Turbomachinery AB (SIT). Huvudsyftet är att undersöka med vilken noggrannhet MLT kan prediktera de extra aerodynamiska förluster som uppstår vid injektion av kylluft i en turbinpassage. READ MORE