Sökning: "hydro turbine"

Visar resultat 11 - 15 av 31 avhandlingar innehållade orden hydro turbine.

  1. 11. PIV measurement in a down-scale propeller turbine

    Författare :Nahale Sotoudeh; Pål-Tore Selbo Storli; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : Renewable energy has been demonstrated to be an efficient energy production technique worldwide. Due to the geographical location of Sweden, running water has been used as a widely accessible and clean renewable source of energy for power production. LÄS MER

  3. 12. EAL's boundary lubrication performance in hydro power plants

    Författare :Jan Ukonsaari; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : This licentiate thesis concerns the possibility to change mineral based hydraulic fluid to environmentally adapted lubricants (EAL's) in water turbine applications from the point of view of boundary lubrication. A new test rig was designed to meet the conditions for a slow and/or intermittent motion journal bearing. LÄS MER

  4. 13. Hydro-mechanical optimization of a wave energy converter

    Författare :Chisom Miriam Ekweoba; Andrej Savin; Halvar Gravråkmo; Uppsala universitet; []
    Nyckelord :Ballast optimization; analytical model; pitching wave energy converter; power absorption performance; wave energy converter; geometry optimization; genetic algorithm; floating platform; extended degrees of freedom; beam model; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Wave energy conversion technology has gained popularity due to its potential to be-come one of the most preferred energy sources. Its high energy density and low car-bon footprint have inspired the development of many wave energy converter (WEC) technologies, few of which have made their way to commercialisation, and many are progressing. LÄS MER

  5. 14. Analysis of flow dynamics and flame stabilization in gas turbine related combustors

    Författare :Erdzan Hodzic; Strömningsteknik; []
    Nyckelord :LES; gas turbine; bluff-body; blow-off; swirl; POD; DMD; wavelet;

    Sammanfattning : The regulations on the emissions from combustion devices are getting more and more strict for environmental and human health reasons. Modern combustion research faces two major challenges; reduction of the pollutants, such as CO, NOx and unburnt hydro- carbons and increase of the combustion efficiency. LÄS MER

  7. 15. Wind Power Integration in Power Systems with Transmission Bottlenecks

    Författare :Julija Matevosyan; Lennart Söder; Olav Bjarte Fosso; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wind power; hydro power; transmission bottlenecks; stochastic optimization; Electric power engineering; Elkraftteknik;

    Sammanfattning : During the last two decades, the increase in electricity demand and environmental concern resulted in fast growth of power production from renewable sources. Wind power is one of the most efficient alternatives. LÄS MER