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Visar resultat 1 - 5 av 7 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Meteorological Investigation of Preconditions for Extreme-Scale Wind Turbines in Scandinavia

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Christoffer Hallgren; [2013]
    Nyckelord :extreme-scale wind turbines; wind power; wind power density; wind atlas; MERRA; reanalysis data; extremskaliga vindkraftverk; vindkraft; vindenergidensitet; vindatlas; MERRA; återanalysdata;

    Sammanfattning : During the last three decades, the hub height of wind turbines has increased from 24 to 162 meters and with an increasing demand for break-through innovations in green energy production it seems likely that this trend will continue. The meteorological preconditions for extreme-scale wind turbines are investigated for Scandinavia using 33 years of reanalysis data from MERRA (Modern-Era Retrospective Analysis for Research and Applications). LÄS MER

  3. 2. Wind Climate Estimates - Validation of Modelled Wind Climate and Normal Year Correction

    Uppsats för yrkesexamina på grundnivå, Luft- och vattenlära

    Författare :Martin Högström; [2007]
    Nyckelord :Modelled Wind Climate; MIUU-model; Normal Year Correction; Wind Energy;

    Sammanfattning : Long time average wind conditions at potential wind turbine sites are of great importance when deciding if an investment will be economically safe. Wind climate estimates such as these are traditionally done with in situ measurements for a number of months. LÄS MER

  4. 3. Downscaling of Wind Fields Using NCEP-NCAR-Reanalysis Data and the Mesoscale MIUU-Model

    Magister-uppsats,

    Författare :Mattias Larsson; [2006]
    Nyckelord :dynamic downscaling; wind field; NCEP NCAR reanalysis; MIUU-model;

    Sammanfattning : The profitability from the production wind power energy is related to the quality of the wind speed forecasts. All wind predicting methods needs meteorological data, for the prevailing synoptic situation, as input. High quality input is wanted for a better result. LÄS MER

  5. 4. Development and validation of a new mass-consistent model using terrain-influenced coordinates

    Magister-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Linus Magnusson; [2005]
    Nyckelord :mass-consistent model; terrain-influenced vertical coordinate system; model comparison; MIUU-model;

    Sammanfattning : Simulations of the wind climate in complex terrain may be useful in many cases, e.g. for wind energy mapping. In this study a new mass-consistent model (MCM), the λ-model, was developed and the ability of the model was examined. LÄS MER

  7. 5. Methods for Estimating the Wind Climate Using The MIUU-model

    Magister-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Magnus Lindholm; [2003]
    Nyckelord :wind climate; MIUU model; geostrophic wind; climatology;

    Sammanfattning : In the year 2002 the Swedish Energy Agency assigned the department of Earth science at Uppsala University a research assignment to make a detailed wind climatology mapping covering Sweden. A survey of the Swedish wind climate has been made earlier in some areas, using the Danish model WASP. LÄS MER