Essays about: "turbine control"

Showing result 11 - 15 of 143 essays containing the words turbine control.

  1. 11. Investigation of Non-Metallic Inclusions in Inconel 718 by Using Conventional Cross-Sectioned (CS) Method and Experimental Extraction Metal-Surfaced (MS) Method

    University essay from KTH/Materialvetenskap

    Author : Mehreen Baig; [2022]
    Keywords : ;

    Abstract : Inconel 718 is a nickel-based alloy, predominantly used in the oil and gas industry, in aircraft engines as well as in gas turbine engines. It provides exceptional properties like high strength, creep resistance, corrosion resistance and long fatigue life at high temperatures as well as in cryogenic environments. READ MORE

  3. 12. CFD Analysis of Water Replenishment Holes in an Offshore Wind Turbine Foundation

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Shubham Arvind Tupkar; Swetha Sappe Narasimhamurthy; [2022]
    Keywords : CFD; Wave Dynamics; Implicit LES; GABC; OpenFOAM; Stokes V; Monopile Foundation; Replenishment Holes;

    Abstract : The study presented in this thesis investigates the passive exchange of enclosed water with seawater in an offshore wind turbine foundation. This thesis was undertaken in collaboration with Vattenfall R&D, Älvkarleby, Sweden. The water exchange is studied by utilizing Computational Fluid Dynamics (CFD) simulations. READ MORE

  4. 13. Modelling and Optimal Control of a Variable Nozzle Turbine in an SI Engine for Maximum Performance

    University essay from Linköpings universitet/Fordonssystem

    Author : Emil Fransson Brunberg; Karl Bolin; [2022]
    Keywords : Variable nozzle turbine; VNT; Variable geometry turbine; VGT; YOP; Collocation; Direct collocation; Optimal control; SI-engine; Engine control; Engine modelling;

    Abstract : The ever increasing demands on today's engine performance and emissions control is forcing the automotive industry to make use of innovative solutions. One of these is to apply the technology of VNT turbos on commercial petrol vehicles. READ MORE

  5. 14. Optimization of Kaplan turbines for frequency regulation in hybrid hydropower plants

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Nayan Narkhede; [2022]
    Keywords : Kaplan; Kaplan turbines; frequency regulation; hybrid hydropower plants; wear and tear; guide vanes; runner blades;

    Abstract : The increasing penetration of variable renewable energy sources in the Nordic Power System is causing frequency quality degradation and has increased the importance of primary frequency control provided by hydropower plants. Hydropower is the world’s largest renewable energy source. READ MORE

  6. 15. Load Control Aerodynamics in Offshore Wind Turbines

    University essay from KTH/Kraft- och värmeteknologi

    Author : Lorenzo Cantoni; [2021]
    Keywords : Wind Turbine; Offshore; Blade; Rotor; Computational Fluid Dynamics; Airfoil; Aerodynamic; Aeroelasticity; Simulation; Fluid; Structure; Interaction; Loads; Control; Response; Harmonics; Vibration; Damping; Flutter; Trailing Edge; Flaps; Wind Gust; Lift; Drag; Unsteady; Pressure; Velocity; Vindkraftverk; offshore; blad; rotor; beräkningsvätske-dynamik; flygplatta; aerodynamisk; aeroelasticitet; simulering; vätska; struktur; interaktion; belastningar; kontroll; respons; övertoner; vibrationer; dämpning; fladdring; bakkant; klaffar; vindstöt; lyft; Drag; ostadig; tryck; hastighet;

    Abstract : Due to the increase of rotor size in horizontal axis wind turbine (HAWT) during the past 25 years in order to achieve higher power output, all wind turbine components and blades in particular, have to withstand higher structural loads. This upscalingproblem could be solved by applying technologies capable of reducing aerodynamic loads the rotor has to withstand, either with passive or active control solutions. READ MORE