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Best Estimate Plus Uncertainty

BES-VUEM Best Estimate Plus Uncertainty

Day 1
• Opening, Introduction, Scope and Content of the training
• History and Development of System Codes
• Features & Limitations of System Thermal-Hydraulic Codes: the Origins of the Uncertainty
• V&V Process for Computer Codes
• Overview of CSNI Separate and Integral Effects Test Facility Matrices for Validation of Best Estimate Thermal-Hydraulic Computer Codes
• Exercise: SCILAB Tutorial for BEPU Hands-on Training
• Exercise: Basic Probability and Statistic Concepts


Day 2
• Historical Evolution of LOCA Regulatory Requirements
• CSAU and EMDAP (RG 1.157 and RG 1.203)
• Approaches to Calculate Uncertainty
• Exercise: Uncertainty Quantification with QD-RELAP
• Exercise: BEPU LOCA Example


Day 3
• Relevant Aspects for BEPU Applications
• The Features of the UMAE Methodology
• GRS Method for Uncertainty and Sensitivity Evaluation of Code Results and Applications
• Exercise: Uncertainty Quantification in BEPU LOCA: Exercise with “Marviken”


Day 4
• CIAU (Code with the capability of Internal Assessment of Uncertainty) Method for Uncertainty Evaluation of Code Results
• The CASUALIDAD (Code with the capability of Adjoint Sensitivity and Uncertainty AnaLysis by Internal Data ADjustment and assimilation) method
• Results and Recommendations of International OECD/CSNI BEPU Programs (UMS, BEMUSE, PREMIUIM; SAPIUM)
• Exercise: Uncertainty Quantification in BEPU LOCA: Exercise with other experimental data

 

Day 5
• Exercise: CIAU Application to LOFT L2-5
• Industrial Methods to combine Uncertainties
• The BEPU Evaluation Model for the Licensing of Atucha-II NPP
• Standardized Consolidated Calculated and Reference Experimental Database(SCCRED): a Supporting Tool for V&V and Uncertainty Evaluation of Best-Estimate System Codes for Licensing Applications

• A software platform for a fully digital and dynamic BEPU Licensing Application
• Questions, Open Issues and Individual Consultations
• Closing of the training and release of the Certificate of Attendance