Sökning: "aerodynamic loss"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden aerodynamic loss.

  1. 1. Evaluation of the Weather Resistance of Ram-Air Kites Used in Airborne Wind Energy Systems

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Johanna Désirée Ambs; [2023]
    Nyckelord :Weathering Resistance; Coated Textiles; Ram-air Kite; Airborne Wind Energy;

    Sammanfattning : Airborne Wind Energy is an emerging technology that harnesses the power of the wind by using tethered wings. Among the flying devices are ram-air wings made from coated textiles that utilize dynamic pressure to gain their shape. LÄS MER

  3. 2. Defining, analyzing and determining power losses - due to icing on wind turbine blades

    Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Zandra Canovas Lotthagen; [2020]
    Nyckelord :Wind Power; De-icing; Defining; Ice losses; Task19; Temperature threshold; Power curve; Big Data;

    Sammanfattning : The wind power industry is one of the fastest-growing renewable energy industries in the world. Since more energy can be extracted from wind when the density is higher, a lot of the investments made in the wind power industry are made in cold climates. But with cold climates come harsh weather conditions such as icing. LÄS MER

  4. 3. Study and Design of an Axial Fan

    Master-uppsats, KTH/Flygdynamik

    Författare :Alexis Dorange; [2020]
    Nyckelord :;

    Sammanfattning : The cooling system is a crucial part for helicopter operations. Withoutit, hovering flight could not be operated. The cooling system for the maingearbox of a helicopter is composed of radiators and a fan. A fan is anaerodynamic body and as such it can be improved in terms of aerodynamicefficiency. LÄS MER

  5. 4. Meanline method for design and off-design turbine performance predictions

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Joel Sjödin; [2019]
    Nyckelord :Meanline program; space turbine; loss model; turbine predictions; early stage design; Technology and Engineering;

    Sammanfattning : Early designs are often based on rough estimations and assumptions. Such is also the case when designing space turbines that power rocket engine fuel pumps which generally have obscure performance and size requirements. Often times, this leads to unique, single-use designs. This complicates and restricts the amount of possible testing. LÄS MER

  7. 5. Model Predictive Control Using Neural Networks : a Study on Platooning without Intervehicular Communications

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Gustav Ling; Klas Lindsten; [2017]
    Nyckelord :MPC; platooning; neural networks; velocity profile estimation; gear shift dynamics; heavy duty vehicle; machine learning;

    Sammanfattning : As the greenhouse effect is an imminent concern, motivation for the development of energy efficient systems has grown fast. Today heavy-duty vehicles (HDVs) account for a growing part of the emissions from the vehicular transport sector. LÄS MER