Analyses of the MSLB benchmark V1000CT-2 by the coupled system code ATHLET-BIPR8KN

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

OSTI ID:22039653

Nikonov, S P ^[1]; Langenbuch, S ^[2]; Lizorkin, M P ^[1]; Velkov, K ^[2]

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1. RRC KI, 123182 Moscow (Russian Federation)
2. GRS mbH, 85748 Garching (Germany)

Within the activities of OECD/NEA is being initiated the second phase of the VVER-1000 Coolant Transient Benchmark (V1000CT-2). It considers the best estimate analyses of a Main Steam Line Break (MSLB) of a VVER-1000 NPP with two exercises. The analyses have been performed with the coupled system code ATHLET-BIPR8KN which enables to perform realistic simulation of three-dimensional neutron kinetics and thermal-hydraulic processes in VVER NPP. Results are presented and analysed for the two proposed scenarios. These results are supplemented by sensitivity studies varying the number of the thermo-hydraulic channels (THC) in the core and by comparisons with point kinetics calculations. This work is of considerable importance for the validation of the coupled system code ATHLET-BIPR8KN in case of asymmetric core inlet conditions. (authors)

• Research Organization: American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 22039653
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
97 MATHEMATICS AND COMPUTING
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COMPUTERIZED SIMULATION
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REACTOR KINETICS EQUATIONS
SENSITIVITY ANALYSIS
STEAM LINES
THERMAL HYDRAULICS
THREE-DIMENSIONAL CALCULATIONS
VALIDATION
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