The proposal is aimed at the improvement of the validation of coupled neutronics / thermal hydraulic codes. Modern safety standards require a modelling of complex accident processes with significant interaction between thermal hydraulic system behaviour and space-dependent reactor kinetics. To perform the analysis of such events, thermal hydraulic system codes have to be coupled to three-dimensional core models. These coupled codes need to be validated against well-specified transient scenarios. The proposed work includes an extended validation of couple d codes against measurement data from NPPs, the development and application of an uncertainty analysis methodology for coupled codes and the validation of neutron kinetics models and nuclear cross section data libraries against kinetics.
Funding SchemeCSC - Cost-sharing contracts
250 68 Rez - Praha
919 31 Jaslovske Bohunice
918 64 Trnava