Sökning: "vindkraft"

Visar resultat 1 - 5 av 402 uppsatser innehållade ordet vindkraft.

  1. 1. Sensors for intelligent and reliable components

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

    Författare :Pontus Lundman; [2020]
    Nyckelord :Wind turbine; Gearbox; Sensor; Condition monitoring; Cyber-physical system; Vindkraftverk; Växellåda; Sensor; Tillståndsövervakning; Cyberfysiskt system;

    Sammanfattning : One way to tackle the climate change society is facing today is through the change to renewable energy sources, such as wind power. Today, a trend when it comes to technology is that products are evolving into becoming more cyber-physical systems (CPS) by integrating functions realized with mechanics, control and communication. LÄS MER

  2. 2. Do feed-in tariffs promote environmental efficiency among wind farms? : a two-stage LCA + DEA efficiency case study on 75 Danish wind farms

    Master-uppsats, SLU/Dept. of Economics

    Författare :Gustav Berglöf; [2020]
    Nyckelord :DEA; efficiency; environmental efficiency; feed-in tariff; operational efficiency; renewable energy; subsidy; wind power;

    Sammanfattning : It is generally known that wind power has an offsetting effect on emissions by crowding out fossil dependent energy sources. What has not been studied to any further extent is the variability in environmental impacts caused by wind turbine erection and manufacturing. Also, it is not known how economic incentives could affect these impacts. LÄS MER

  3. 3. Dimensionering och konstruktion av passiv mekanisk pitch för småskaliga horisontalaxlade vindkraftverk

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :David Oljelund; [2020]
    Nyckelord :Wind; turbine; wind; power; pitch; mechanical; passive; design; dimension; sizing; HAWT; axis; horizontal; axle; small; scale; torsion; spring; spring; loaded; torsion; BEM; blade; element; mechanical; engineering; power; production; over; rated; wind; tip; speed; ratio; Vindkraft; vind; kraft; pitch; mekanisk; passiv; konstruktion; dimensionering; horisontalaxlad; horisontal; axlad; horisontalaxlat; småskala; småskalig; små; skala; vridfjäder; torsionfjäder; fjäderbelastad; fjäder; vrid; torsion; BEM; Blad; Element; maskinteknik; effektproduktion; över; märkvind; löptal;

    Sammanfattning : För vindkraftverk i mindre skala används i huvudsak två sätt att avlasta vid höga vindhastigheter, stallreglering och girning ur vind. En tredje metod är att pitcha rotorbladet till en mindre attackvinkel. Då minskar belastningen på rotorbladet samtidigt som effektgenerering kan bibehållas. LÄS MER

  4. 4. Balansering av Sveriges elsystem år 2040 – En teknoekonomisk analys

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

    Författare :Max Kennerland; Emily Garney; [2020]
    Nyckelord :Elsystem; effektbalans; balanskraft; uthållighet; gasturbiner; efterfrågeflexibilitet; energilager Electricity system; power balance; balance power; endurance; gas turbines; demand response; energy storage; Technology and Engineering;

    Sammanfattning : Sweden's future electricity system is facing a transformation, where nuclear power will gradually be phased out, while there is a large expansion of wind power. The declining wind power prices, together with Sweden's goal of a 100% renewable electricity system in 2040, makes it an attractive resource. LÄS MER

  5. 5. Strategic Assessment of Drinking Water Production Systems Environmental impacts from a Life cycle perspective : A case study of Norrvatten future drinking water production alternatives

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Rahul Aggarwal; [2020]
    Nyckelord :Life cycle assessment LCA ; Drinking water treatment; Environmental impacts; Sustainability; Global warming; Nanofiltration; Conventional water treatment; Ultrafiltration; Expansion alternatives; Water Quality; Water treatment plant; Environmental optimization; Drinking water quality;

    Sammanfattning : Climate change is a global challenge that requires proactive action from municipalities, companies, and other organizations to prioritize sustainability in their daily operations. In the past few decades, life cycle assessment (LCA) approach has been successfully applied for environmental assessments in the drinking water sector. LÄS MER