Sökning: "control rods"

Visar resultat 21 - 25 av 33 uppsatser innehållade orden control rods.

  1. 21. Crank Angle Based Virtual Cylinder Pressure Sensor in Heavy-Duty Engine Application

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Mikael Gustafsson; [2015]
    Nyckelord :CLCC; in-cylinder pressure; cylinder separation; torsion.;

    Sammanfattning : The in-cylinder pressure is an important signal that gives information about the combustion process. To further improve engine performance, this information can be used as a feedback signal in a control system. Usually a pressure sensor is mounted in the cylinder to extract this information. LÄS MER

  3. 22. Sensitivity study of control rod depletion coefficients

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

    Författare :Joel Blomberg; [2015]
    Nyckelord :nuclear power; control rod; control rods; depletion; kärnkraft; styrstav; styrstavar; utbränning;

    Sammanfattning : This report investigates the sensitivity of the control rod depletion coefficients, Sg, to different input parameters and how this affects the accumulated 10B depletion, β. Currently the coefficients are generated with PHOENIX4, but the geometries can be more accurately simulated in McScram. LÄS MER

  4. 23. Optimization of RIA-calculations : Simulating Falling Control Rods at Forsmark Nuclear Power Plant

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för fysik och astronomi

    Författare :Christian Alex; [2013]
    Nyckelord :nuclear physics; safety analysis; control rod;

    Sammanfattning : This report accounts for investigations of ways to reduce the calculation times forsimulations of falling control rods in boiling water reactors done prior to everyreactor startup, known as RIA-calculations. Two methodologies to lower thecalculation times have been proposed, developed and implemented in a set ofmatlab-scripts, which are fully compatible with the previously used methodology. LÄS MER

  5. 24. Control rod drop during hot zero power : RIA in BWR

    Uppsats för yrkesexamina på avancerad nivå, Tillämpad kärnfysik

    Författare :Malin Fritz; [2013]
    Nyckelord :Control rod; RIA; BWR;

    Sammanfattning : During operation of nuclear power reactors reactivity initiated accidents (RIA) can occur, such as a control rod drop. If this occurs, the reactivity increase dramatically and leads to an increase in power, fuel enthalpy and fuel temperature. The fuel and reactor can be damaged. LÄS MER

  7. 25. Pelletskvalitet : Test av olika råvarumixer i pelletstillverkningen vid Rindi Västerdala AB:s bioenergikombinat i Vansbro

    Uppsats för yrkesexamina på avancerad nivå, Akademin för hållbar samhälls- och teknikutveckling

    Författare :Tina Lidberg; [2012]
    Nyckelord :;

    Sammanfattning : Fuel pellets are a refined bio fuel mostly consisting of residues from sawmills and wood industry. At Rindi Västerdala AB's combined bio energy plant in Vansbro fuel pellets are produced, while the waste heat from the process is used for district heating. LÄS MER