Severe Accident Analysis of Shutdown State Accident Using MAAP4-CANDU to Support Level 2 PSA for the POINT LEPREAU Station Refurbishment Project
32nd Annual CNS Conference - 2011 June 05-08


Presented at:
32nd Annual CNS Conference
2011 June 05-08
Location:
Niagara Falls, Canada
Session Title:
Thermalhydraulics

Authors:
Sergei Petoukhov (AECL)
Morgan Brown (AECL)
Mani Mathew (AECL)
  

Abstract

A Level 2 Probabilistic Safety Assessment was performed for the Point Lepreau Generating Station.  The MAAP4‑CANDU code was used to calculate the progression of postulated severe core damage accidents and fission product releases.  Five representative severe core damage accidents were selected:  Station Blackout, Small Loss-of-Coolant Accident, Stagnation Feeder Break, Steam Generator Tube Rupture, and Shutdown State Accident.  Analysis results for the reference Shutdown State Accident scenario are discussed in this paper.

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