Apparatus and method for estimating core performance

Details Apparatus and method for estimating core performance Apparatus and method for estimating core performance

1995-06-21

1997-06-10

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

376216, 36455101, 395800, G21C 1700

Patent

active

056384130

ABSTRACT:
The present invention relates to a technique for estimating core performance which includes the steps of: dividing a reactor core into a plurality of core portions, each consisting of at least one fuel assembly, then further dividing each of the core portions into segments by planes perpendicular to the axis thereof and allocating a parallel processing apparatus having a plurality of arithmetic processing units, a memory for storing processing data of the arithmetic processing units, and communications circuitry for transferring data with respect to the arithmetic processing units, in a manner such that the arithmetic processing units correspond to the segments of the core. Data on the power distribution for the entire core portion to which a corresponding segment belongs is transferred to each arithmetic processing unit, before each of the arithmetic processing units performs thermal hydraulic calculations. Each of the arithmetic processing units calculates the enthalpy distribution and void fraction of coolant in the segment on the basis of the power distribution data, independently of other arithmetic processing units.

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T. Hoshino et al., "Load Follow Simulation of Three-Dimensional Boiling Water Reactor Core by PACS-32 Parallel Microprocessor System", Nuclear Technology 56: 465-477 (1982).

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