Sökning: "Hydro power"

Visar resultat 6 - 10 av 262 uppsatser innehållade orden Hydro power.

  1. 6. Sustainable Production Patterns for Hydropower Units

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Hannington Kayanja; [2023]
    Nyckelord :Automatic control; Hydropower modelling; PD-controller; Sustainable power production; Water level control.;

    Sammanfattning : Globally, a significant portion of energy comes from hydropower. However, harnessing hydro energy interrupts the natural state of river flows, thus affecting the ecological processes of the surrounding communities. LÄS MER

  3. 7. The climate impact of fishways : A life cycle assessment of Blyberg’s and Spjutmo’s up- and downstream fishways

    Master-uppsats, Linköpings universitet/Industriell miljöteknik

    Författare :Ellen Lundin; Lovisa Liljenberg; [2023]
    Nyckelord :LCA; life cycle analysis; life cycle assessment; fishways; fish; fish migration; climate impact; technical fishways; co2 equivalents; co2 eq; hydro power; HPP; Sweden; construction; concrete; reinforcement steel;

    Sammanfattning : The Swedish national plan for reapproval of hydropower describes that hydropower plants (HPPs) are required to be reassessed to ensure that modern environmental conditions are set for the permits. Since dams and HPPs create barriers for migrating fish and consequently disfavor biological diversity, one consequence of the national plan is that fishways are being constructed. LÄS MER

  4. 8. Pilot Study: Test Rig for Self-lubricating Kaplan Runner Bearings

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Bhairav Khadke; [2023]
    Nyckelord :Hydropower; Kaplan turbine; Self-lubricating bearing Test rig. Hydropower; Kaplan turbine; Self-lubricating bearing Test rig.; Vattenkraft; Kaplanturbin; Självsmörjande lager Testrigg.;

    Sammanfattning : Hydropower has a relatively small impact on the climate and contributes to almost half of Sweden’s electricity production. Vattenfall own and operate roughly 125 large scale hydro power units of which about half utilizes a Kaplan turbine. LÄS MER

  5. 9. Battery-Storage Investment for a Power System with High Variable Renewable Energy Output

    Master-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

    Författare :Elva Yunyan Wallimann; [2023]
    Nyckelord :decision and risk analysis; energy economics; capacity expansion; operations research; utility-scale battery;

    Sammanfattning : Climate change is posing significant threats to human beings. Deploying renewable energy sources in electricity generation is widely accepted as an indispensable part of the solution to climate change. The vast potential lies in variable renewable energy sources, such as solar and wind. LÄS MER

  7. 10. Batteries charging into the future? Techno-economical analysis of BESS participation on the Swedish frequency regulation market using a mixed method approach

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Miljö- och energisystem

    Författare :Theodor Rosengren; [2023]
    Nyckelord :Battery Energy Storage Systems; Frequency Regulation; FCR-D; FFR; economic feasibility; Sweden; Technology and Engineering;

    Sammanfattning : As the penetration of variable renewable energy is increasing, the demand for flexibility in the electrical grid is on the rise. One way in which flexibility is needed is to provide frequency regulation. If electricity consumption and production momentarily are unbalanced there needs to. LÄS MER