Sökning: "Turbulence intensity"

Visar resultat 21 - 25 av 43 uppsatser innehållade orden Turbulence intensity.

  1. 21. The impact of wind conditions on wind turbines

    Master-uppsats, KTH/Energiteknik

    Författare :Lovisa Eriksson Petersen; [2016]
    Nyckelord :;

    Sammanfattning : The world is facing global warming and the challenge to reduce greenhouse gas emissions. Wind power is a renewable source of energy with no greenhouse gas emissions when operating. Therefore, it could contribute in this challenge. LÄS MER

  3. 22. A stochastic analysis of Turbulence Intensity influence over various sizes of HAWT : Study of hypothetical relationship between Rotor Diameter and influence level of Turbulence Intensity

    Magister-uppsats, Högskolan i Halmstad/Energivetenskap

    Författare :Allen Christo Nicholas; [2016]
    Nyckelord :Turbulence intensity; power performance; power deviation; power coefficient; tip speed ratio.; Turbulensintensitet; effektuttag; effektavvikelse; verkningsgrad; löptal;

    Sammanfattning : This disquisition aims for the study of turbulence intensity influence over the power performance of different sizes of turbines with the intent to validate a hypothesis. The hypothesis formulated for the analysis is the relationship between the rotor diameter (turbine size) and turbulence intensity. LÄS MER

  4. 23. POWER DEVIATION ANALYSIS OF THE ROCKNEBY WIND FARM

    Magister-uppsats, Högskolan i Halmstad/Energivetenskap

    Författare :FRANCISCO JOSÉ RIVERO CÁMARA; [2015]
    Nyckelord :Wind farm; turbulences; power deviation; power analysis;

    Sammanfattning : Nowadays the globalization and the economy expansion of the emerging countries demand anincreasing amount of energy. Therefore, energy production as well as the efficiency of energyusage, is essential for future developments of societies. LÄS MER

  5. 24. Analytical and Numerical Study of Thermally Stratified Flow above a forest

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Ellinor Hultmark; [2015]
    Nyckelord :forest; thermal stratification; large-eddy simulation; LES; Richardson number; atmospheric boundary layer; wind power; Technology and Engineering;

    Sammanfattning : In order for our energy consumption to be sustainable, we need to rely more and more on renewable energy resources, such as solar power and wind power. In Sweden, 69% of the land area is covered in forest. LÄS MER

  7. 25. An experimental study in the near field of a turbulent round free jet

    Magister-uppsats, Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Författare :JORGE SORBE; [2014]
    Nyckelord :turbulent; piv; jet;

    Sammanfattning : This work is about the study of the turbulent round jet to low Reynolds number in the outlet of a nozzle due to the countless uses in the industrial field. The objectives of the thesis are the verification of the Particle Image Velocimetry (PIV) data with other methods and authors and the analysis of the near and transition region of the flow. LÄS MER