Essays about: "nacelle"

Showing result 1 - 5 of 12 essays containing the word nacelle.

  1. 1. Major Component Replacement on Floating Wind Turbines

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Kilian Galle; [2023]
    Keywords : ;

    Abstract : Among the challenges that floating offshore wind (FOW) energy faces today, operation and maintenanc ecosts, and especially major component replacements (MCR), are an important cost reduction lever. MCRs are defined as any failure on a wind turbine requiring the change of an entire main component of the turbine, such as a gearbox, generator, blade, nacelle, etc. READ MORE

  3. 2. Turbine Performance Analysis in Wake and Wake-Free Conditions Using Nacelle Mounted Lidar at a Wind Farm in Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Izabela Fijołek; [2022]
    Keywords : Sweden; wind power; onshore; lidar; wake effect; performance analysis; power curve;

    Abstract : The need for optimizing wind farms’ production and maximizing the profitability of projects necessitates power performance analysis. Nowadays, the use of remote sensing devices for this purpose becomes more and more popular due to many advantages this technology has over traditional met masts. READ MORE

  4. 3. Numerical evaluation of the ground vortex

    University essay from KTH/Teknisk mekanik

    Author : Martin Babo; [2022]
    Keywords : Turbofan engine; CFD; Flow simulation; Ground Vortex; External aerodynamics;

    Abstract : This master thesis covers the realization of a CFD calibration study regarding the numerical simulation of the ground vortex phenomenon. As part of InVIGO project (EU CleanSky2), wind tunnel test campaigns were performed using a nacelle model combined with a movable raised floor. READ MORE

  5. 4. A COMPARISON OF THE OBSERVED WAKE EFFECT WITH SEVERAL WAKE MODELS USING BOTH ANALYTIC AND CFD SIMULATION METHODS - FOR THE CASE OF BLOCK ISLAND OFFSHORE WIND FARM

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Robbie Pratt; [2019]
    Keywords : Block Island Wind Farm; Offshore Wind Power; Wake Effect; Wake Modelling; WindPRO; WindSIM; Openwind; CFD modelling.;

    Abstract : This paper sets out to analyze the observed wake effect at Block Island Wind Farm. A comparison is made between several wake simulation methods and the observed data at Block Island using analytic and CFD (Computational Fluid Dynamics) modelling methods. READ MORE

  6. 5. Quantify Change in Wind Turbine Power Performance Using Only SCADA Data

    University essay from KTH/Kraft- och värmeteknologi

    Author : Marcus Carlberg; [2015]
    Keywords : ;

    Abstract : The power performance characteristic of a wind turbine is defined by its power curve and resulting estimate in annual energy production. It is a key attribute for validating the performance of newly installed wind turbines, and the power curve is monitored throughout the wind turbine life cycle. READ MORE