1. Recent FRAPCON and FRAPTRAN activity at VTT
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FRAPCON/FRAPTRAN Users’ Group Meeting 2015 Ville Tulkki

2. Recent FRAPCON and FRAPTRAN activity at VTT
Statistical estimation of number of failed rods in EPR large break LOCA
And continued analysis
Assessment of FRAPCON uncertainty and sensitivity
Development of GENFLO-FRAPTRAN
Several instances of FRAPTRAN in a single flow channel
Application to assembly flow blockage in BWR
Several LOCA experiment analysis as part of FUMAC
Halden VVER experiment
AEKI burst experiments
Benchmarking of FINIX against FRAPCON and FRAPTRAN

5. Review of the results showed several mistakes / bugs
Actual number of failed rods was 14 in worst case

6. Further investigation on the reason of the simulated failures (soon to be published)

7. Uncertainty analysis of base irradiation case with FRAPCON-3.4
Sensitivity studies using Sobol’ variance decomposition

10. GENFLO-FRAPTRAN
Thermal hydraulic code GENFLO modified to run simultaneously several instances of FRAPTRAN
2013
Case study to investigate flow blockage in a BWR
2014

11. Relatively benign behaviour at low blockage ratios, harshest case (90%) shown

12. TECHNOLOGY FOR BUSINESS
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