COMPARISON OF THE RESULTS OF THE 7th DYNAMIC AER BENCHMARK – VVER-440 PRESSURE VESSEL COOLANT MIXING BY RE- CONNECTION OF AN ISOLATED LOOP

Kotsarev A.V., Lizorkin M.P., NRC «Kurchatov Institute», Moscow, Russia

24th Symposium of AER on VVER Reactor Physics and Reactor Safety (2014, Sochi, Russia)
Reactor dynamics and safety analysis

Abstract

COMPARISON OF THE RESULTS OF THE 7th DYNAMIC AER BENCHMARKVVER-440 PRESSURE VESSEL COOLANT MIXING BY RE-CONNECTION OF AN ISOLATED LOOP
Kotsarev A.V., Lizorkin M.P.
NRC «Kurchatov Institute», Moscow, Russia
ABSTRACT
The 7th dynamic benchmark is a continuation of the efforts to validate systematically codes for the estimation of the transient behavior of VVER type nuclear power plants. This benchmark is a continuation of the work in the 6th dynamic benchmark. It is proposed to be simulated the transient – re-connection of an isolated circulating loop with low temperature in a VVER-440 plant. It is supposed to expand the benchmark to other cases when a different number of loops are in operation leading to different symmetric and asymmetric core boundary conditions. The purposes of the proposed benchmark are:

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