Development of the new pin-by-pin core calculation method with embedded heterogeneous assembly calculation

Conference · Sat Jul 01 04:00:00 EDT 2006

OSTI ID:22039760

Yamaji, K; Matsumoto, H; Nakano, M ^[1]; Takeda, T ^[2]; Yamamoto, A ^[3]

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1. Mitsubishi Heavy Industries, Ltd., Minatomirai 3-3-1, Nishu-ku, Yokohama, 220-8401 (Japan)
2. Osaka Univ., Yamada-oka 2-1, Suita, Osaka 565-0871 (Japan)
3. Nagoya Univ., Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan)

In this paper, the next generation method (NGM), which is being developed in Mitsubishi Heavy Industries, Ltd., is proposed. Our NGM is based on 'On-flight' calculations with 2D cell-heterogeneous transport calculation for generating cell average constants and 3D cell-homogenous pin-by-pin core calculations. A new MOC module, GALAXY, with energy and space dependent boundary condition is being developed as a 2D cell-heterogeneous flux solver. To verify our NGM, whole system calculation was performed against 2D-C5G7 MOX benchmark problem. The result was compared with whole core cell-heterogeneous calculation results. Those results are in good agreement. We confirmed that this method is very effective and useful for parallel computing because heterogeneous calculation of each assembly can be independently performed. (authors)

• Research Organization: American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 22039760
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
97 MATHEMATICS AND COMPUTING
BENCHMARKS
BOUNDARY CONDITIONS
FUEL ASSEMBLIES
FUEL PINS
HETEROGENEOUS REACTOR CORES
HOMOGENIZATION METHODS
MIXED OXIDE FUELS
NEUTRON FLUX
NEUTRON TRANSPORT THEORY
PARALLEL PROCESSING
REACTOR CELLS
SPACE DEPENDENCE
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS