Search for dissertations about: "hydropower .phd thesis"

Showing result 1 - 5 of 8 swedish dissertations containing the words hydropower .phd thesis.

  2. 1. Graphene as Solid Lubricant in Polymer Composites : With Application in Hydropower Bearings

    Author : Julian Somberg; Nazanin Emami; Jan Ukonsaari; Gil Gonçalves; Sergei Glavatskih; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Graphene; Solid Lubricant; Polymer Composite; Friction; Hydropower; Machine Elements; Maskinelement;

    Abstract : With a rising global demand for green energy production, hydropower plays a key role in securing a reliable and sustainable energy supply. Hydropower is the largest and most efficient renewable energy source, with an ever-increasing capacity. READ MORE

  4. 2. Safeguarding nature and people : Integrating economics, politics, and human rights to transform biodiversity policies and governance

    Author : Niak Sian Koh; Thomas Hahn; Claudia Ituarte-Lima; Wiebren J. Boonstra; Grace Wong; Esther Turnhout; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; global environmental governance; human rights review mechanisms; biodiversity offsets; commensurability; commodification; economic instruments; transformations; Convention on Biological Diversity; compliance; safeguards; Sustainability Science; vetenskap om hållbar utveckling;

    Abstract : None of the world’s biodiversity goals from the last decade were fully met, as biodiversity losses are occurring at an unprecedented rate. Policies are not always effective; their use may have adverse effects on people and nature. READ MORE

  5. 3. Studies of Transient and Pulsating flows with application to Hydropower

    Author : Joel Sundström; Michel Cervantes; Mehdi Seddighi; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulent flows; Pipe flow; Unsteadiness; Friction modeling; Strömningslära; Fluid Mechanics;

    Abstract : The rotational motion of a hydraulic turbine runner makes pulsating flows ubiquitous in different locations of the machine. The cyclic loading thus induced may generate large pressure forces acting periodically on both stationary and rotating parts. READ MORE

  6. 4. An experimental and numerical investigation of a Kaplan turbine model

    Author : Berhanu Mulu; Sebastian Muntean; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Abstract : Hydropower is a renewable, reliable and highly efficient source of energy. Hydropower has the ability to run as a base load and to adjust load rapidly. This makes hydropower suitable for coupling with other renewable energy sources to stabilize frequency fluctuations. READ MORE

  7. 5. Hydraulic- hydromorphologic analysis as an aid for improving peak flow predictions

    Author : Anna Åkesson; Anders Wörman; Göran Lindström; Rolf Larsson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hydrological modelling; peak flow predictions; distributed routing; parameterisation; stage-dependency; Hydrology; Hydrologi;

    Abstract : Conventional hydrological compartmental models have been shown to exhibit a high degree of uncertainty for predictions of peak flows, such as the design floods for design of hydropower infrastructure. One reason for these uncertainties is that conventional models are parameterised using statistical methods based on how catchments have responded in the past. READ MORE