Essays about: "Boiling Water Reactor"

Showing result 11 - 15 of 18 essays containing the words Boiling Water Reactor.

  1. 11. Modeling of the steam system in a BWR : A Model of Ringhals 1

    University essay from Tillämpad kärnfysik

    Author : Thomas Norberg; [2011]
    Keywords : ;

    Abstract : A nuclear power plant is a very complex dynamic system with a lot of built inregulators and security systems that make it almost impossible to know by reasoning,exactly how the system dynamics is going to react due to e.g. plant modifications,transients or operator behaviors. READ MORE

  3. 12. Analysis of Boiling Water Reactor Design and Operating Conditions Effect on Stability Behaviour

    University essay from KTH/Kärnkraftssäkerhet

    Author : Elias Amselem; [2011]
    Keywords : ;

    Abstract : It is well known that boiling water reactors can experience inadvertent power oscillations. When such instability occurs the core can oscillate in two different modes (in phase mode and out of phase mode). READ MORE

  4. 13. Analysis of Advanced Fuel Behaviour during Loss of Coolant Accident in Swedish Boiling Water Reactor

    University essay from KTH/Kärnkraftssäkerhet

    Author : Paul Breijder; [2011]
    Keywords : Accident analysis; BWR; LOCA; sensitivity study; thermal hydraulic system code; TRACE;

    Abstract : In accident analysis regarding nuclear power plants, it is very common to use thermal hydraulic system codes, such as TRACE, developed by U.S. NRC. In the case of licensing a power plant, this is one of the necessities. READ MORE

  5. 14. SPATIAL DEPENDENCE OF REACTIVITY COEFFICIENTS

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Sideeg Salah; [2011]
    Keywords : ;

    Abstract : The objective of this thesis is to study and understand the behavior of the reactivity coefficients (RCs) in a boiling water reactor (BWR) partially within 25 different segments with different void fractions, with enriched oxide fuel (UOX) core, as well as to evaluate the methodologies exposed in [10]. These two normalization  methods (described in chapter 3) are used to analyse the contribution of each segment of the core having different regions (fuel, clad, coolant, moderator and channel box) to the RCs. READ MORE

  6. 15. 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