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System Thermal-hydraulics Analysis: Phenomenology and Computational Evaluation Model
  • Next Event:  NINE Headquarters, LUCCA (Italy), 22-26 September 2025
  • Early Registration 25 July 2025

MMARS - System Thermal-hydraulics Analysis: Phenomenology and Computational Evaluation Model

Day 1
•    Opening, Introduction, Scope and Content of the training
•    System Thermal-Hydraulics Codes: Capabilities, Limitations and Uncertainties
•    The OECD/NEA Computer Code Validation Matrix (CCVM)
      o    for Integral Test Facility (ITF)
      o    for Separate Effect Test Facility (SETF)
•    Exercise: Getting Familiar with a NPP Evaluation Model
•    Exercise: Implementation of scenario #1 in the NPP Model (scenario to be selected between LOFW, SGTR, SBLOCA, LBLOCA)
•    Exercise: Analysis of the “scenario #1” phenomena from CCVM and its characterization through the computed responses

 

Day 2
•    Exercise: Analysis of the “scenario #1” phenomena from CCVM and its characterization through the computed responses
•    The SCCRED methodology: Overview
•    The Qualification Process of a NPP Evaluation Model in SCCRED, Part 1. The Validation of Code and of Nodalization Techniques
•    The FFTBM Metric for Quantifying the Accuracy of a Code Calculation
•    Exercise: Implementation of scenario #2 in the NPP Model (scenario to be selected between LOFW, SGTR, SBLOCA, LBLOCA)
•    Exercise: Analysis of the “scenario #2” phenomena from CCVM and its characterization through the computed responses


Day 3
•    Exercise: Analysis of the “scenario #2” phenomena from CCVM and its characterization through the computed responses
•    Exercise: Implementation of scenario #3 in the NPP Model (scenario to be selected between LOFW, SGTR, SBLOCA, LBLOCA)
•    Exercise: Analysis of the “scenario #3” phenomena from CCVM and its characterization through the computed responses


Day 4
•    Exercise: Analysis of the “scenario #3” phenomena from CCVM and its characterization through the computed responses
•    The Qualification Process of a NPP Evaluation Model in SCCRED, Part 2. The Similarity Analysis and the Kv Scaled Calculation
•    Relevant Aspects for a BEPU methodology
•    Approaches for performing Uncertainty Analysis
      o    The GRS method
      o    The CIAU method
      o    The CASUALIDAD method
•    Exercise: Kv Scaled Calculation
      o    a) the Reference NPP and the selected scenario
      o    b) Selection of the ITF and associated Experiment
      o    c) Scaling of the Boundary Conditions


Day 5
•    Exercise: Kv Scaled Calculation:
      o    d) Setting of the Initial Conditions and I&C system
      o    e) Running and Analysis of the Kv Scaled calculation
      o    f) Sensitivity Analysis of the Kv Scaled calculation
•    Example: The Qualification Process of CNA-II NPP Evaluation Model, a licensing case
•    Questions, Open Issues and Individual Consultations
•    Closing of the training and release of the Certificate of Attendance