Essays about: "control rod"

Showing result 21 - 25 of 28 essays containing the words control rod.

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

    University essay from Institutionen för fysik och astronomi

    Author : Christian Alex; [2013]
    Keywords : nuclear physics; safety analysis; control rod;

    Abstract : 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. READ MORE

  3. 22. Control rod drop during hot zero power : RIA in BWR

    University essay from Tillämpad kärnfysik

    Author : Malin Fritz; [2013]
    Keywords : Control rod; RIA; BWR;

    Abstract : 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. READ MORE

  4. 23. CONTROL-ROD GUIDE TUBES WEAR INSPECTION: IMPLEMENTATION OF THE SURVEILLANCE

    University essay from KTH/Fysik

    Author : Bich-Châu Nguyen; [2012]
    Keywords : ;

    Abstract : .... READ MORE

  5. 24. Transient behaviour in a BWR with Hafnium Cladding : Feasibility study of using BWRs as Higher Actinide Burners at the Example of Ringhals I

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Sebastian Raub; [2011]
    Keywords : ;

    Abstract : Transmutation of transuranic elements is of interest to lower storage unit cost and long-term radiotoxicity. To make use of existing infrastructure, the deployment of Boiling Water Reactors (BWRs) with hafnium cladding and Mixed Oxide (MOX) fuel was proposed, resulting in a hardening of the neutron spectrum. READ MORE

  6. 25. Detailed B-10 depletion in control rods operatingin a Nuclear Boiling Water Reactor

    University essay from Institutionen för materialkemi

    Author : John Johnsson; [2011]
    Keywords : Boron depletion; control rod; Boiling Water Reactor; BWR;

    Abstract : In a nuclear power plant, control rods play a central role to control the reactivity ofthe core. In an inspection campaign of three control rods (CR 99) operated in theKKL reactor in Leibstadt, Switzerland, during 6 respectively 7 consecutive cycles,defects were detected in the top part of the control rods due to swelling caused bydepletion of the neutron-absorbing 10B isotope (Boron-10). READ MORE