A core burnup simulation method for reload BWR fuel optimization

Conference · Mon Jan 01 04:00:00 EST 1990 · Transactions of the American Nuclear Society; (United States)

OSTI ID:7091390

Hida, Kazuki; Yoshioka, Ritsuo

In order to improve uranium utilization, axial enrichment and gadolinia distributions have been optimized for boiling water reactor (BWR) fuel. These studies were made with reference to the initial fuel for simplicity of calculation. However, it is more practical to optimize the reload fuel, which accounts for the majority of nuclear fuel used. The axial one-dimensional (1-D) core model used to simulate the burnup performance of the initial fuel is no longer suitable for the reload core. On the other hand, the use of a three-dimensional (3-D) core model would make the computing time prohibitive, because the optimization calculation involves a large number of core burnup simulations. The authors have therefore developed a rapid and reasonably accurate core model, which is presented here. In addition, a method is given for calculating the equilibrium core performance in a single-cycle burnup.

• OSTI ID: 7091390
• Report Number(s): CONF-901101--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 62
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
ACTINIDES
BOUNDARY CONDITIONS
BUCKLING
BURNUP
BWR TYPE REACTORS
CHALCOGENIDES
COMPUTER CODES
COMPUTERIZED SIMULATION
CONTROL ROD WORTHS
CONVERGENCE
ELEMENTS
ENRICHED URANIUM REACTORS
FUEL MANAGEMENT
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
MATHEMATICAL MODELS
METALS
NEUTRON FLUX
ONE-DIMENSIONAL CALCULATIONS
OPTIMIZATION
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PHYSICS
POWER DENSITY
POWER REACTORS
RADIATION FLUX
RARE EARTH COMPOUNDS
REACTOR COMPONENTS
REACTOR CORES
REACTOR PHYSICS
REACTORS
SIMULATION
THERMAL REACTORS
THREE-DIMENSIONAL CALCULATIONS
URANIUM
VOID FRACTION
WATER COOLED REACTORS
WATER MODERATED REACTORS