Preliminary Evaluation of a Severe Flooding Effects in an Innovative SMR

Abstract

The dramatic consequence of the magnitude 9.0 earthquake and of the following tsunami occurred in Fukushima NPP highlighted and confirmed that the existing and future nuclear plants should be designed to be highly secure and capable to withstand this type of extreme events.In the proposed study the effects induced by an extreme flooding/tsunami was evaluated with reference to a SMR adopting a deterministic approach, setting up a detailed reactor building FEM model and taking into account suitable materials behaviour and constitutive laws.The obtained results were analyzed to evaluate the safety margin of considered SMR plant.