Paper Profile

Simulation of a Turbine Trip Transient at Embalse NPP with Full-Circuit CATHENA Model

Documents: Full paper available in Conference Proceedings.
Date: Tuesday October 20
Time:13:25 - 13:50
Session:2B1: ThermalHydraulics & Safety III
Authors: Arnaldo Rabiti (Nucleoeléctrica Argentina S. A., Argentina)
Ana Parrondo (Nucleoeléctrica Argentina S. A., Argentina)
Pablo Serrano (Nucleoeléctrica Argentina S. A., Argentina)
Antoine Sablayrolles (Nucleoeléctrica Argentina S. A., Argentina)
Hermes Damiani (Nucleoeléctrica Argentina S. A., Argentina)

Embalse NPP is carrying on a Periodic Safety Review to deal with its life extension. This review includes tasks like Deterministic Analysis review for the Final Safety Analysis Report. In 2011, NA-SA (Nucleoeléctrica Argentina S.A.) issued a first CATHENA full-circuit model representing the current plant. This model is used in this work. The simulation presented here corresponds to a turbine trip that occurred at Embalse NPP. Consistency between the simulation and the real event is demonstrated. Furthermore, NASA is currently performing Safety Analysis with a new model developed jointly with AECL and Candu Energy which includes post refurbishment changes and other improvements.

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