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Generic Containment A Detailed Comparison of Containment Simulations Performed on Plant Scale

pubblicazioni - Memoria

Generic Containment A Detailed Comparison of Containment Simulations Performed on Plant Scale

Questo articolo riassume i risultati di un benchmark internazionale, organizzato nell’ambito del Network SARNET. Nel benchmark code-to-code è analizzato il comportamento termoidraulico di un generico contenimento di un impianto PWR in seguito ad incidente grave senza l’intervento dei sistemi di mitigazione dell’idrogeno (Ricombinatori catalitici).

One outcome of the OECD/NEA ISP-47 (TOSQAN, MISTRA, THAI) activity was the recommendation to elaborate a ‘Generic Containment’ including all important components. On the one hand, this Generic Containment helps to rate analyses being performed with different lumped-parameter models. On the other hand, it serves as a basis for testing new model developments on a commonly available and accepted basis. Within the SARNET2 Network of Excellence, such a Generic Containment nodalisation, based on a German PWR (1300 MWel), has been developed and is applied for a lumped parameter code-to-code comparison with systematically increasing complexity. Within the second step of the benchmark exercise, run1, a detailed evaluation is performed in order to achieve an understanding of the basic differences among the codes and models and the resulting deviations. The paper discusses the general methodology and its application in the detailed evaluation of run1.

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