Essays about: "High pressure turbine"

Showing result 26 - 30 of 61 essays containing the words High pressure turbine.

  1. 26. Evolution of Cavity Tip Vortices in High-Pressure Turbines

    University essay from Uppsala universitet/Elektricitetslära

    Author : Albin Berglund; [2017]
    Keywords : CFD; turbomachinery; tip gap; fluid dynamics; cavity; rotor blade;

    Abstract : This degree project in applied physics studies the tip gap flows over the rotor blades of a high-pressure turbine. The rotor blade used in the study has an improved design that utilizes both a cavity tip and an uneven profiling to reduce turbine loss. READ MORE

  3. 27. SENSITIVITY STUDIES ON THE THERMAL MODEL OF A SOLAR STEAM TURBINE

    University essay from KTH/Kraft- och värmeteknologi

    Author : Luca Calianno; [2016]
    Keywords : Steam turbine; start-up; transient; differential expansion; Nusselt correlation; heat transfer.  ;

    Abstract : In the past, steam turbines were mostly used for base load operation. Nowadays, with the increased development of variable renewable technologies, these same steam turbines are withstanding higher cyclic operational regimes with more frequent start-ups and fast changing loads. READ MORE

  4. 28. ON SIMULATING COMPRESSIBLE FLOWS WITH A DENSITY BASED SOLVER

    University essay from KTH/Mekanik

    Author : Sathyanarayanan Chandramouli; [2016]
    Keywords : Coupled density based solver; High Pressure Turbine Nozzle Guide Vane;

    Abstract : A coupled density based solver in the framework of foam-extend is used to perform simulations of transonic flows. The solver is based on an explicit and time-accurate algorithm and is coupled to a compressible Unsteady Reynolds-Averaged Navier-Stokes (URANS) and a Large Eddy Simulation (LES) module. READ MORE

  5. 29. SENSITIVITY STUDIES ON THE THERMAL MODEL OF A SOLAR STEAM TURBINE

    University essay from KTH/Energiteknik

    Author : LUCA CALIANNO; [2016]
    Keywords : Steam turbine; start-up; transient; differential expansion; Nusselt correlation; heat transfer.; Ångturbiner; uppstart; transienter; differentiell expansion; Nusselt korrelation; värmeöverföring.;

    Abstract : Förr i tiden, ångturbiner har främst använts för baskraft operation. Numera med den ökade utvecklingen av varierande förnyelsbara är samma ångturbiner motstå högre cykliska operativa system med mer frekvent uppstarter och snabbt föränderliga laster. READ MORE

  6. 30. Investigation on methods to improve heat loadprediction of the SGT-600 gas turbine

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Arman Farhanieh; [2016]
    Keywords : Gas Turbine; CFD; Turbomachinery; High Pressure Turbine; Heat Load; Time Transformation; Profile Transformation; Mixing Plane;

    Abstract : In modern gas turbines, with the increase of inlet gas temperature to raise thework output, the importance of accurate aero-thermal analysis has become of vitalimportance. These analysis are required for temperature prediction throughoutthe turbine and to predict the thermal stresses and to estimate the cooling requiredfor each component. READ MORE