APAL Final seminar: Advanced deterministic and probabilistic integrity analyses of RPVs subjected to PTS Loading - Lessons learned from APAL

Europe/Zurich
Description

Overview

APAL's ultimate objective was to develop comprehensive guidance for assessing the integrity of reactor pressure vessels (RPVs) through both deterministic and probabilistic methodologies. This guidance aimed to incorporate improved methodologies and recommendations for the assessment of long-term operation (LTO) enhancements. The project delved into advanced methods for both deterministic and probabilistic assessments, which are detailed within the project's scope.

In this workshop, experts closely involved with APAL will present an overview of the four years project's progress. The final seminar will offer a concise summary of the advanced deterministic and probabilistic integrity analyses of RPVs under pressurized thermal shock (PTS) loading. Emphasis will be placed on the insights gained throughout the project, encapsulating valuable lessons learned.

The culmination of the seminar represents an opportunity to review the outcomes achieved through the advanced PTS analysis conducted by professionals. These insights serve as a crucial resource for various stakeholders in the nuclear power industry, including plant owners, suppliers, regulatory bodies, and other relevant parties.


 


 

Registration
Registration to final seminar
  • Tuesday, September 17
    • Opening and registration
      • 1
        Welcome & Registration
        Speaker: Jerome Roy
      • 2
        Welcome to IRSN
        Speaker: Patrice Giordano
      • 3
        Opening and APAL project overview
        Speaker: Vladislav Pištora (UJV Řež, a. s.)
    • State-of-the-art for PTS: Overview on WP1
      • 4
        Overview on the state-of-the-art in PTS
        Speaker: Carlos Cueto-Felgueroso
      • 5
        Warm pre-stress (WPS) in PTS
        Speaker: Maksym Zarazovskii
      • 6
        Residual stresses relevant to PTS
        Speaker: Szavai Szabolcs
    • 10:45 AM
      Coffee break
    • Advanced thermal-hydraulics analysis procedures
      • 7
        Introduction to Thermo-Hydraulics
        Speaker: Pavel Kral
      • 8
        Uncertainties and BEPU analysis
        Speaker: Ivor Clifford
    • 12:25 PM
      Lunch break
    • Advanced deterministic PTS analysis procedures
      • 9
        Structural and fracture mechanics benchmark
        Speaker: Sebastien Blasset
      • 10
        Assessment of LTO improvements & Thermo-hydraulic uncertainties
        Speaker: Miroslav Posta (UJV)
    • Advaced probabilistic PTS analysis procedures I
      Convener: Peter Dillström
      • 11
        Basic probabilistic fracture mechanics benchmark
        Speaker: Petter Von Unge
    • 3:40 PM
      Coffee break
    • Advaced probabilistic PTS analysis procedures II
      • 12
        Probabilistic fracture mechanics benchmark related to LTO improvements
        Speaker: Katharina Angermeier
      • 13
        Probabilistic fracture mechanics benchmark related to TH uncertainties
        Speaker: Katharina Angermeier
      • 14
        Probabilistic margin assessment
        Speaker: Klaus Heckmann
  • Wednesday, September 18
    • Best practice for advanced PTS analysis I
      Convener: Szavai Szabolcs
      • 15
        Introduction to APAL Best practice guidance
        Speaker: Judit Dudra
      • 16
        Overview of PTS assessment
        Speaker: Carlos Cueto-Felgueroso
      • 17
        Selection of events leading to PTS
        Speaker: Vladislav Pistora (UJV)
      • 18
        Thermo-hydraulic analyses
        Speaker: Pavel Kral
    • 11:00 AM
      Coffee break
    • Best practice for advanced PTS analysis II
      • 19
        Temperature and stress field calculations
        Speaker: Ralf Tiete
      • 20
        Deterministic fracture-mechanics assessment for PTS analysis
        Speaker: Ralf Tiete
    • 12:30 PM
      Lunch break
    • Best practice for advanced PTS analysis III
      Convener: Peter Dillström
      • 21
        Probabilistic PTS analyses and uncertainties I
        Speaker: Andrey Shipsha
    • 2:45 PM
      Coffee break
    • Best practice for advanced PTS analysis IV
      • 22
        Probabilistic PTS analyses and uncertainties II
        Speaker: Andrey Shipsha
    • 3:55 PM
      Transfer to visitor center
    • Visit to PWR simulator and crisis technical center