„FULL-CORE“ VVER-440 RK3+ calculation benchmark

28th Symposium of AER on VVER Reactor Physics and Reactor Safety (2018, Olomouc, Czechia)
[2] Reactor physics experiments and code validation (benchmarks)

Authors

P. Mikoláš, J. Vimpel, J. Závorka (ŠKODA JS)

Abstract

This work deals with “Full-Core” VVER-440 with PK-3+ fuel assemblies. This benchmark comes from the original “Full-Core VVER-440 benchmark [1, 2]. Loading pattern for this core is very similar to the first pattern of the Mochovce NPP. This core is loaded with fuel assemblies with enrichment of 1.6 %w U235, 2.4 %w U235 and 4.25 %w U235. Difference from benchmark ¹ is that in this new benchmark is 6 PK-3+ fuel assemblies (in the 60° degree core symmetry). Also next difference between this new benchmark, and the benchmark ² is, that this new benchmark doesn’t have inserted control rods. Preliminary reference solution MCNP will be presented on this Symposium and this solution will be compared to SERPENT 2.1.30 code with different nuclear data library. For this purpose, special cross-section library was created by the program makxsf for the specific temperature of 543.15 K. Also reference solution is compared to MCU code ³.

¹ V. Krýsl, P. Mikoláš, D. Sprinzl, J. Švarný, ŠKODA JS a.s.: “FULL-CORE”-VVER-440 core periphery power distribution benchmark proposal, In: 21st Symposium of AER on VVER Reactor Physics and Reactor Safety, Dresden, September 19-23, 2011.
² V. Krýsl, P. Mikoláš, D. Sprinzl, J. Švarný, ŠKODA JS a.s.: “Full-Core”-VVER-440 benchmark extension, In: 26th Symposium of AER on VVER Reactor Physics and Reactor Safety, Helsinki, Finland, 10-14. October, 2016
³ S.S Aleshin, A.S. Bikeev, D.S. Oleynik, A.I. Scherenko, Kurchatov Institute: Calculation of „full core“ VVER-1000 benchmark. Proposal for some new VVER-440 benchmarks.