Development of a RELAP5-3D multidimensional model of a VVER-1000 NPIP for analysis of a large-break loss-of-coolant accident
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abstract
The development of a RELAP5-3D multidimensional model for the VVER-1000 nuclear power plant was discussed. The model was to be used for the analysis of large break loss of coolant accidents. The model showed a reduction in the calculated hot-spot peak-clad temperature (PCT) and an increase in PCT during the reflood stages.