ciemat activities on frapcon/fraptran applications (2012-2013)

Nuclear Safety Research Unit

FRAPCON/FRAPTRAN USERS GROUP MEETING

Charlotte , NC (USA), 19.09.13

CIEMAT ACTIVITIES on

FRAPCON/FRAPTRAN APPLICATIONS(2012-2013)

Unit of Nuclear Safety ResearchDivision of Nuclear Fission

CIEMAT-MadridSpain




FRAPTRAN-1.4

RIA (OECD)

MAIN ACTIVITIES

Steady State UA (Impact on RIA modeling)

LOCA (HALDEN)

Ramps (SCIP)

FRAPCON-3.4

Extension to DS (FRAPCON-3.4xt)

TERMOMEC (CSN)AICAST (ENRESA)




MAIN ACTIVITIES

- FRAPCON-3.4xt application to predict cladding mechanical performance based on CFD calculations

DS

UA

RIA

LOCA

Ramps

- Impact of steady state uncertainties (FRAPCON) on RIA modeling calculations (SCANAIR)

- RIA fuel code Benchmark calculations (FRAPTRAN vs SCANAIR)

- FRAPTRAN capability to model power ramps from 3rd SCIP Benchmark

- Comparison with FRAPCON results applied to similar ramps from 2nd SCIP Benchmark

- FRAPTRAN capability to model HALDEN tests: IFA-650.xx




THANK YOU FOR YOUR ATTENTION




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Burnup (GWd/tU)-Storage time (years)

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lati

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inc

rem

en

t (%

)Creep

Dissolved H

F. Feria, J. Penalva, L.E. Herranz, “Thermo-mechanical analysis of cladding behaviour under cask blockage conditions”, Top Fuel 2013

FRAPCON-3.4xt application to predict cladding mechanical performance based on CFD calculations

Cask blockage




I. Sagrado, L.E. Herranz, “Impact of steady state uncertainties on RIA modeling calculations”, Top Fuel 2013

Impact of steady state uncertainties on RIA modeling calculations




FRAPTRAN capability to model power ramps from 3rd SCIP Benchmark

GE-1 Ramp (IFA-695.2)

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0 50 100 150 200 250 300 350 400 450Axial elevation (m)

T c

lad o

ute

r (º

C)

FRAPTRAN (Conditioning end)FRAPTRAN (Begin of final ramp step)FRAPTRAN (End of final ramp step)STUDSVIK data final ramp step t=26.5 h

6%

xM1 Ramp

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Axial distance (m)

T c

lad o

ute

r (º

C)

FRAPTRAN (Conditioning end)FRAPTRAN (Begin of ramp)

FRAPTRAN (End of ramp)STUDSVIK data final ramp step t=8 min.

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GE-1, POST-RAMP RESULTS

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Axial distance (mm)

DD

post

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Av. Measur.FRAPTRAN-1.4

Clad temperatures:

Strains:

I. Vallejo, L.E. Herranz, “Simulations of four Ramp Tests from SCIP Project with FRAPCON-3.4/FRAPTRAN1.4 Codes”, DFN/SN-xx/OP-13 Technical Report (In Progress)

xM2 Ramp

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ow

er (

kW/m

)

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mic

ron

s)Peak PPN (Output code)LHR (Studsvik data)Clad Elongation (Output code)Clad Elongation (EXP. DATA)




RIA fuel code Benchmark calculations (FRAPTRAN vs SCANAIR)

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el c

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r te

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SCANAIR-7.1

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Time (s)

Cla

d h

oo

p s

trai

n (

%)

FRAPTRAN-1.4

SCANAIR-7.1

I. Sagrado, I. Vallejo, L.E. Herranz, “Analysis of Experimental RIA Scenarios: CIEMAT Contribution to the OECD RIA International Benchmark”, DFN/SN-02/OP-13. CIEMAT Technical Report




I. Vallejo, L.E. Herranz, “Modelización Post-Test del Experimento HALDEN IFA-650.10 con los Códigos de la serie FRAP”, SNE, 2013

FRAPTRAN capability to model HALDEN tests: IFA-650.xx

IFA-650.10 Test

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Diff time failure pred-exp

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RAPT S

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ciemat activities on frapcon/fraptran applications (2012-2013)

Documents