Sökning: "oil housing"

Visar resultat 1 - 5 av 41 uppsatser innehållade orden oil housing.

  1. 1. Thermal Analysis of Tap- Changers

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Daniel Lundberg; [2023]
    Nyckelord :Thermal analysis; COMSOL; tap-changers; heat transfer;

    Sammanfattning : This thesis provides a way of mapping the temperature development of the tap-changer oil for some different standardized loading cases. The project was in collaboration with Hitachi Energy for one of their production cites situated in Ludvika, Sweden. The software used for the simulation environment was COMSOL 6.1 which is a finite element solver. LÄS MER

  3. 2. Design changes to simplify maintenance and condition assessment on a tap changer

    Master-uppsats, Jönköping University/JTH, Industriell produktutveckling, produktion och design

    Författare :Arvid Fermér; Jakob Modling; [2023]
    Nyckelord :Power transformer; Chemical degradation; Electrical insulation; Tap changer; Insulation Electrical; Transformer insulation; Insulating oil; Insulation condition assessment; Transformer; Power grids; Power distribution; Oil filled transformer; Transformer oil;

    Sammanfattning : This master thesis investigates a redesign for a maintenance tube, used for both sampling and draining transformer oil from a tap changer compartment. With the current design, one can do one or the other of sampling and draining. LÄS MER

  4. 3. Vi ville bara ha ett plejs för sånna som oss : Exploring the Swedish Punk Movement in Two Swedish Newspapers 1978-1980

    Master-uppsats, Södertörns högskola/Journalistik

    Författare :Moa Ekström; [2023]
    Nyckelord :Punk; suburb; Oasen; Punk; Folkhemmet; förort; Oasen;

    Sammanfattning : In 1920s Sweden the concept of Folkhemmet was born and described as a concept and an idea of the modern Swedish well-fare state where the nation was considered a family. Through governmental founding, a new modern Sweden was planned. LÄS MER

  5. 4. Från Hasse och Tage till Ebba Grön : Kulturskildringar av svenska förorten mellan 1954-1984

    Kandidat-uppsats, Södertörns högskola/Historia

    Författare :Moa Ekström; [2021]
    Nyckelord :Suburbs; Folkhemmet; space; place; modern;

    Sammanfattning : In the year of 1933, a large housing survey was carried out in Sweden, which was carried out against the background of the large housing shortage in the country, but most of all in the big cities such as Stockholm and Gothenburg. The results of the survey showed that the country needed housebuilding but foremost modern new houses and apartments which suited a modern lifestyle. LÄS MER

  7. 5. Development of Inlet Valve in an Oil­-free Novel Steam Engine

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Gautam Rajeev; Dinesh Thirunavukkarasu; [2021]
    Nyckelord :Steam engine; rotational valve; actuator mechanism; sealing; Ångmotor; rotationsventil; ställdon; tätning;

    Sammanfattning : A novel compact steam engine design could be used to replace current combustion engines in the rapidly changing world of renewable energy. Especially with the increased research into alternative fuels such as hydrogen fuel cells and methane, which would vastly improve the efficiency of a steam engine. LÄS MER