Abstract:
The integral severe accident analysis code and RELAP5 were directly coupled for improving the overall safety analysis of the containment and primary system.Two kinds of coupling were implemented,i.e.breaks on the pressure boundary between the primary system and containment,interfaces between the safety injection systems and primary system.The feasibility of this coupling methodology and the applicability of the coupling code were verified through the calculation of a numerical case Marviken CFT 24 in which a pressurized vessel inflow to the containment reactor cavity.
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