Sökning: "Burnup"

Visar resultat 1 - 5 av 16 uppsatser innehållade ordet Burnup.

  1. 1. Variabla inloppsstrypningar i kokvattenreaktorer

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

    Författare :Jonatan Hultin Rosenberg; [2022]
    Nyckelord :kärnkraft; BWR; variabla inloppsstrypningar; härdkylning; bridning; konversion; bränsleekonomi; CPR; torrkokningskvot;

    Sammanfattning : In a nuclear reactor core there are fuel assemblies with different age (i.e. how long the assembly has been in the core) and burnup (i.e. LÄS MER

  3. 2. Qualification of a Physical Model of Cladding Creep During Dry Storage of Spent Nuclear Fuel

    Master-uppsats, KTH/Fysik

    Författare :Robin Andersson; [2022]
    Nyckelord :Dry Storage; Thermal Creep; Zircaloy-4; Pellet-Cladding Interaction; Torrt Förvar; Termisk Krypning; Zircaloy-4; Kuts-Kapsling Interaktion;

    Sammanfattning : In dry interim storage of spent nuclear fuel, thermal creep is one of the major threats to the fuel cladding integrity due to the constant decay heat generation from the fission products and minor actinides in the fuel, and the increase in fuel rod internal pressure which is present after burnup. Plenty of research has been done on either empty cladding tubes irradiated in a research reactor, or on spent fuel that is defueled prior to the examination. LÄS MER

  4. 3. Determining the Sensitivity of Reactor Parameters in a Sodium Cooled Fast Reactor

    Kandidat-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Alexander Palfelt; Wilhelm Thunberg; Anders Winka; [2020]
    Nyckelord :serpent; SFR; sodium cooled fast reactor; generation 4;

    Sammanfattning : The sensitivity of two operational output parameters, criticality and isotopic composition during burnup, to specific design and operational reactor parameters in a Sodium Cooled Fast Reactor, is investigated. The computational simulation tool Serpent is used. LÄS MER

  5. 4. Monte Carlo Simulations of Bowing Effects Using Realistic Fuel Data in Nuclear Fuel Assemblies

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

    Författare :Marcus Westlund; [2019]
    Nyckelord :bowing effects; fuel assembly perturbations; nuclear; serpent; monte carlo;

    Sammanfattning : Deformations of nuclear fuel assemblies have been observed in nuclear power plants since the mid-90s. Such deformations are generally called bowing effects. LÄS MER

  7. 5. A Monte Carlo simulation study of collimators for a high-spatial-resolution Gamma Emission Tomography instrument

    Master-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Anastasios Anastasiadis; [2019]
    Nyckelord :;

    Sammanfattning : The present master thesis concerns a study of collimator designs for a high-spatial-resolution Gamma Emission Tomography (GET) instrument for used fuels utilizing Monte Carlo simulation codes. Designing a collimator for this purpose is a multilateral process that requires many interconnected and conflicting objectives to be taken into consideration. LÄS MER