Sökning: "Accumulation model"

Visar resultat 1 - 5 av 156 uppsatser innehållade orden Accumulation model.

  1. 1. 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

  3. 2. Improvement of Wind Power Forecasting and Prediction of Production Losses Caused by Ice Formation on Wind Turbine Blades : - A Machine Learning Approach

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Emelie Sjökvist; [2023]
    Nyckelord :;

    Sammanfattning : In the ongoing climate crisis, transitioning to renewable energy sources is essential to manage the increasing energy demand. One such renewable energy source is the weather-dependent energy source, wind power. Many wind farms are located in Cold Climate (CC) regions, known for their vast potential for wind power production. LÄS MER

  4. 3. Modelling the Impact of Climate and Socio-Economic Changes on Nutrient Dynamics in the Catchment of Lake Vomb

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Yanhe Zhou; [2023]
    Nyckelord :Climate change; hydrological modelling; nutrient; RCP; socioeconomic development; SSP; SWAT; water quality modelling;

    Sammanfattning : Climate change and socio-economic development are greatly affecting the quality of freshwater, especially the excessive accumulation of nutrients (N and P), which eventually leads to the occurrence of eutrophication. Lake Vomb is one of the main sources of drinking water in southern Sweden and the nutrient load from the catchment makes it a eutrophic lake with recurring algal blooms. LÄS MER

  5. 4. Identifiering och validering av potentiella översvämningsriskområden med hjälp av GIS-baserad multikriterieanalys

    M1-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Författare :Bahaa Thabet; [2023]
    Nyckelord :GIS; MKA; AHP; Flood risk; Klarälven; Vänern; Urban; GIS; MKA; AHP; Översvämningsrisk; Klarälven; Vänern; Urban;

    Sammanfattning : Floods are natural disasters that often have significant socio-economic consequences. Urban areas with uncontrolled urban development, rapid population growth, an unregulated municipal system and an unplanned change in land use belong to the very sensitive areas where floods cause devastating economic and social losses. LÄS MER

  7. 5. RBC with Endogenous Health

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

    Författare :Linnéa Ekberg; Rasmus Grehn; [2023]
    Nyckelord :Business cycle; Health; Health investment; Time allocation;

    Sammanfattning : The purpose of this paper is to contribute to the limited literature on RBC models with endogenous health accumulation. To this end, we develop an infinitely lived agent model with endogenous health, productivity shocks, and health shocks. Health is conceptualized as a capital stock in accordance with the Grossman model. LÄS MER