Verification of statistical method CORN for modeling of microfuel in the case of high grain concentration

Journal Article · Tue Dec 15 00:00:00 EST 2015 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778815110071· OSTI ID:22471964

Chukbar, B. K., E-mail: [e-mail] ^[1]

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1. National Research Center Kurchatov Institute (Russian Federation)

Two methods of modeling a double-heterogeneity fuel are studied: the deterministic positioning and the statistical method CORN of the MCU software package. The effect of distribution of microfuel in a pebble bed on the calculation results is studied. The results of verification of the statistical method CORN for the cases of the microfuel concentration up to 170 cm{sup –3} in a pebble bed are presented. The admissibility of homogenization of the microfuel coating with the graphite matrix is studied. The dependence of the reactivity on the relative location of fuel and graphite spheres in a pebble bed is found.

• OSTI ID: 22471964
• Journal Information: Physics of Atomic Nuclei, Vol. 78, Issue 11; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
ABUNDANCE
C CODES
COMPUTERIZED SIMULATION
CONCENTRATION RATIO
GRAPHITE
M CODES
NUCLEAR FUELS
PEBBLE BED REACTORS
POSITIONING
REACTIVITY
SPHERES
VERIFICATION