Research Insights
Public summary report 1
Work Package 1 – State of the art of LTO improvements.The report covers:Download PDF- Residual stress distributions for welds and cladding
- Warm pre-stress (WPS) approach applied in PTS
- Thermal-hydraulic (TH) analysis
- Probabilistic PTS analysis
- Identification of further LTO improvements having an impact on PTS.
Public summary report 2
Work Package 2 - Improvement of TH analysisThe report covers:Download PDF- Quantification of impact of LTO improvements and human factors on TH analysis boundary conditions
- Evaluation of uncertainties in TH analysis related to computer code models, plant parameters and human factors
- Thermal-hydraulic (TH) analysis
- Performance of the TH uncertainty analysis
Public summary report 3
Work Package 3 - Deterministic margin assessmentThe report covers:Download PDF- Structural assessment
- Evaluation of uncertainties in TH analysis related to computer code models, plant parameters and human factors
- Definition of fracture mechanics benchmark
- First fracture mechanics benchmark performance
- Margin assessment related to LTO improvements
- Margin assessment related to TH uncertainties
Public summary report 4
Work Package 4 - Probabilistic margin assessmentThe report covers:Download PDF- Structural assessment
- Definition of a probabilistic benchmarks
- Baseline probabilistic benchmark
- Probabilistic benchmark related to LTO improvements
- Probabilistic benchmark related to uncertainties in the thermal hydraulic data
- Probabilistic margin assessment
Work Package 5 - Definition of best-practice for advanced PTS analysis
The fifth work package (WP5) gathered recommendations and conclusions from performed work to define the best-practices for an advanced PTS analysis for LTO, which is addressed in this report. Close cooperation with Advisory Board (AB), regulatory bodies and end-users (NPP owners, suppliers, etc.) during the project helped to increase the acceptance of the best-practice guidance.
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