Sökning: "small wind turbines"

Visar resultat 1 - 5 av 88 uppsatser innehållade orden small wind turbines.

  1. 1. Vindkraftens påverkan på smålom

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Joel Hallingfors; Marcus Åsberg Genctürk; [2023]
    Nyckelord :smålom; vindkraftsetablering; skyddszon; buffertzoner; QGIS; habitatpåverkan;

    Sammanfattning : Vindkraftsetableringar i Sverige ökar och har ökat kraftigt de senaste åren. Etableringen leder till att olika intressen krockar med varandra och hänsyn måste tas till drabbade arter som exempelvis smålom (Gavia stellata). LÄS MER

  3. 2. Tribological characterization of a ball bearing subjected to an electric field : Electric drivetrain tribology

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Muhammad Umar Farooq; [2023]
    Nyckelord :Ball bearing; electric drivetrain; tribology; electric field; characterization; bearing currents; discharge;

    Sammanfattning : Electric machines are widely used in for instance the automotive industry in electric vehicles and in wind turbines. The electrical machines have mechanical bearings as an integral part used to transmit power and load. In addition, the main function includes reducing friction between interacting surfaces. LÄS MER

  4. 3. Modeling of the trajectory of ice thrown from a wind turbine

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Elena Rocchi; [2023]
    Nyckelord :Ice thrown - Ice fall - RANS - LES - CFD - simulations - ballistic model; Technology and Engineering;

    Sammanfattning : There is a growing number of wind turbines installed in cold temperature zones as a result of the restricted space for new construction. Due to ice deposition on the turbine blades, the increasing installation of wind turbines in freezing temperature areas presents many challenges: ice accumulation increases weight, unbalances the rotor, diminishes aerodynamic efficiency, and creates safety issues. LÄS MER

  5. 4. Win-Wind situation? The Local Labor Market and Wind Power Investments in Sweden

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

    Författare :Alfred Arnborg; [2023]
    Nyckelord :Renewable energy; Labor market; Difference-in-differences; Local projections;

    Sammanfattning : This thesis examines the local economic impacts of wind power deployment in Sweden, focusing on the net labor market effects. Using a difference-in-differences model and a local projections model, the study quantifies the impact of wind power investments on unemployment at the municipal level. LÄS MER

  7. 5. Using a GIS to enable an economic, land use and energy output comparison between small wind powered turbines and large-scale wind farms: the case of Oslo, Norway.

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Colin Potter; [2023]
    Nyckelord :Geography; GIS; Wind power; Renewable energy sources; urban wind energy; urban areas; planning; vertical axis wind turbines; comparative studies; urban integrated energy systems; Oslo; Roan; Earth and Environmental Sciences;

    Sammanfattning : Responding to an identified knowledge gap, the study aims to determine if smaller wind turbines located on top of existing urban buildings are more resource efficient (land utilization and economically) than large scale wind farms. To answer this question, using a GIS, the resource efficiency of the Roan wind farm in Northern Norway was compared to a theoretical modeled installation of small-scale wind turbines on top of buildings within a 2km radius study zone in central Oslo. LÄS MER