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1 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER.

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Presentation on theme: "1 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER."— Presentation transcript:

1 1 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Safety coefficients and sub-criticality levels EFIT and XT-ADS Gérald Rimpault, Commissariat à l’Energie Atomique (CEA) Cadarache Center gerald.rimpault@cea.fr EUROTRANS DM1 Safety Meeting 27-28 November, 2008 FZK, RFA

2 2 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault He-EFIT Core Neutronic characteristics (25/11/08) Results with ERANOS2.1 using JEFF3.1 Gérald Rimpault, Julian Murgatroyd, Frédéric Jean

3 3 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault He-EFIT Core Lay out

4 4 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault New Core Design – Detailed Characteristics (1/2)

5 5 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault New Core Design – Detailed Characteristics (2/2)  Under nominal conditions :  Large Margins on cladding temperature (120O °C under normal operating conditions)  Fuel max. temperature (1380 °C) respect the design criteria  To be cross-checked with CATHARE

6 6 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Decay Heat Removal Systems IHX Design Blowers Design

7 7 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Justification of He-EFIT operation reactivity  (pcm) k eff Safety limit-0.99 Core compaction9050.9812 Target removal820.9804 Void effect5020.9756 handling error4100.9717 Cold state limit (20°C)-0.9717 Hot zero power limit (100°C) 720.9711 Fuel expansion1690.9695 Doppler990.9685 Doppler structure-210.9687 Axial expansion-660.9694 Radial expansion (diagrid) 720.9687 Nominal state limit-0.9687

8 8 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault He-EFIT Feedback coefficients K D (pcm) BOC  BOC (pcm/° C)  EOC (pcm/° C) Fuel expansion--0.188-0.166 Doppler-81-- Axial expansion-0.2490.314 Radial expansion (diagrid) --0.288-0.252 Axial expansion coefficient takes into account axial expansion and “doppler structure” effects. All feedback coefficients are negative except for the axial expansion coefficient which is positive (SiC cladding). Expansion of PuMAO2 much bigger than SiC in the temperature ranges of the system: Fuel expansion superseeds SiC axial expansion

9 9 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault XT-ADS CL-P0 Core Neutronic characteristics (13/11/08) Results with ERANOS2.1 using JEFF3.1 Gérald Rimpault, Frédéric Jean Two XT-ADS data (CL-P0 Core) cores : BOL Core : 68 S/A, Pth = 57 MW BOC Core : 75 S/A, Pth = 57 MW

10 10 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault XT-ADS CL-P0 BOL Core : 68 S/A, Pth = 57 MW, Fresh Core

11 11 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault XT-ADS CL-P0 BOC Core : 75 S/A, Pth = 57 MW, Equilibrium Core

12 12 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS CL-P0 Core Neutronic characteristics (13/11/08) 1.XT-ADS data (CL-P0 Core) : Values at Room Temperature i.e. 20°C d(U,Pu)O2 at 20°C = 10,55 g/cm 3 (porosity = 0,9485) 2.XT-ADS data (CL-P0 Core) : Operating temperatures 3.K-Effective Temperature (°C) Fuel875 Clad384 Coolant350 Hot zero power200 Cold state20 Operating conditions (T op ) Hot zero power (200°C) Cold state (20°C) CL-P0 "fresh core" (68 S/A) BOL not linked0.93770.94740.9550 linked0.93890.94740.9550 CL-P0 "equilibrium core" (75 S/A) linked BOC0.94060.94870.9559 EOC0.92860.93640.9435

13 13 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS data (CL-P0 Core) from room (20°C) to Operating temperatures: Material densities : Expanded Dimensions ERANOS density (g/cm 3 ) Medium20°CT op FUEL10,5510,37 CLAD7,777,674 COOLANT10,349,965 ERANOS distance (cm) Dimension (cm)20°CT op Core height6060.229 Lattice pitch9.329.356 Pellet ext. radius0.270.27105 Clad int. radius0.280.28109 Clad ext. radius0.32750.32877 Hex. Tube Int. pitch8.928.9546 Hex. Tube Int. pitch9.329.356

14 14 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Feedback coefficients : Theory Doppler effect Absorption and fission resonance widening. Fuel expansion Axial expansion Sodium expansion Spectrum effect + Leakage effect + Capture Steel expansion Axial expansion + Radial expansion Diagrid effect  Diagrid expansion Differential expansion  Core, vessel, rods expansion

15 15 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS Core BOL (68 S/A) Feedback calculations results (linked / not linked) : Linked calculationNon-linked calculation Core state  (pcm)   (pcm) k eff  (pcm)   (pcm) k eff Operating state (T op )-6512 0,9389-6646 0,9377 Feedback effects (200°C --> T nom ) Coolant expansion -6158-3540,9420-6291-3550,9408 Fuel expansion-651200,9389-6465-1810,9393 Doppler-6196-3160,9417-6328-3180,9405 Doppler structure -15 -6631-150,9378 Axial expansion-6451-860,9394-6633-420,9378 Radial expansion (diagrid) -6383-1290,9400-6517-1290,9388  -900 -1040 Hot zero power (200°C)-5551-9610,9474-5548-10980,9474 Cold state (20°C)-4707-18050,9550-4707-19390,9550

16 16 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS Core BOC/EOC (75 S/A) Feedback calculations results (linked) : BOCEOC Core state  (pcm)   (pcm) k eff  (pcm)   (pcm) k eff Operating state (T op )-6314 0,9406-7691 0,9286 Feedback effects (200°C --> T nom ) Coolant density-5982-3320,9436-7354-3370,9315 Fuel expansion-631400,9406-769100,9286 Doppler-6000-3140,9434-7373-3180,9313 Doppler structure -15 Axial expansion-6256-830,9411-7633-840,9291 Radial expansion (diagrid) -6185-1290,9418-7560-1310,9297  -873 -885 Hot zero power (200°C)-5408-9060,9487-6788-9030,9364 Cold state (20°C)-4609-17050,9559-5986-17050,9435

17 17 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS Core BOL (68 S/A) and BOC/EOC (75 S/A) Feedback coefficients calculation : BOLBOC/EOC linked SCK- CEN results T1 (°C)T2 (°C)K (pcm)  linked (pcm/°C)  non linked (pcm/°C) K BOC (pcm)  BOC (pcm/°C)  EOC (pcm/°C)  (pcm/°C) K (pcm) Coolant density200350--2,360-2,367--2,213-2,247-2,36 Fuel expansion200875-0,000-0,268-0,000 - Doppler200875-356---354---370 Axial expansion200350--0,673-0,380--0,653-0,660-0,93 Radial expansion (diagrid) 200400--0,645 - -0,655- Gert currently checking his results for Axial Expansion

18 18 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS Core BOL (68 S/A) Reactivity void effects : H void (cm) target (3 S/A) ring 1 (9 S/A) rings 1&2 (21 S/A) rings 1-3 (41 S/A) 00000 10261141840 204020935878 30225243964 40-125218376-125 50-37285119-574 60-761-177-413-1430

19 19 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS Core BOL (68 S/A) k eff safety limits calculation (not linked) :  (pcm) k eff Safety limit-0,99 Core compaction18620,9721 Max Void effect4390,9680 Cold state limit (20°C)-0,9680 Hot zero power limit (200°C)8410,9601 Coolant expansion3550,9569 Fuel expansion1810,9552 Doppler3180,9523 Doppler structure150,9522 Axial expansion420,9518 Radial expansion (diagrid)1290,9506 Nominal state limit-0,9506

20 20 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Pb-EFIT CERCER Core Neutronic characteristics (26/11/08) Results with ERANOS2.1 using JEFF3.1 Gérald Rimpault, Frédéric Jean

21 21 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault Pb-EFIT CERCER Core BOL Reactivity void effects : H void (cm) target (19 S/A) ring 1 (18 S/A) rings 1 & 2 (42 S/A) rings 1 to 3 (72 S/A) rings 1 to 4 (108 S/A) rings 1 to 5 (150 S/A) 0000000 1548936790116032170 3036192794190332614310 45632801175276746125998 60723421451337855377143 75623671576366159697700 90303391483348357327469

22 22 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Pb-EFIT Core keff safety limits proposal from ANSALDO

23 23 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Pb-EFIT CERCER Core keff safety limits results  (pcm) k eff Safety limit-0.99 Core compaction14160.9763 Max Void effect 7 S/A3870.9726 Cold state limit (20°C)-0.9726 Hot zero power limit (200°C)1100.9716 Coolant expansion-970.9725 Doppler280.9723 Doppler structure140.9721 Axial expansion350.9718 Radial expansion (diagrid)1260.9706 Nominal state limit-0.9706 Under revision with 380°C as « Hot zero power temperature » Need to be discussed Maximum value => enveloppe case Pb plays a shock absorber role

24 24 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Pb-EFIT CERCER Core Feedback Coefficients Coolant expansion under scrutiny (core, reflector, density, expansion coefficient…) Massimo Sarotto made the calculation with a variation of 10% in Pb density, only in the active zone. That accounts for -48 pcm/ % density. K D (pcm) BOC  BOC (pcm/°C)  EOC (pcm/°C) Coolant expansion-0.4040.338 Doppler-31-- Axial expansion--0.204-0.213 Radial expansion (diagrid) --0.630-0.615

25 25 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Extra Viewgraphs

26 26 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Feedback coefficient calculations Références: Notes techniques CEA: M.Vanier, JC Klein (SMFR) Thèse CEA Na Byung Chan, 1996 Doppler effect : Others feedback : linear variation : Coolant expansion :

27 27 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Steel expansion: Axial: Radial: Fuel expansion: i = Fuel if not linked, i = steel if linked Diagrid effect: Feedback coefficient calculations

28 28 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault CONDITIONS_DE_FONCTIONNEMENT MILIEU (EDL_MILSTD) REFERENCE_UNIT 'BBL_REF' DILATATION RADIALE 400.0 'MSTRU' AXIALE 350.0 'MSTRU' CALCUL LIE TEMPERATURE COMBUSTIBLE 875.0 FERTILE 384.0 STRUCTURE 384.0 CALOPORTEUR 350.0 ABSORBANT 384.0 Feedback calculation method : Radial expansion (400°C  200°C) Axial expansion (350°C  200°C) Fuel expansion (875°C  200°C) Linked/not linked calculation Axial expansion (384°C  200°C) Coolant expansion (350°C  200°C) CELLULE 'CCOMB' EDITION MINI 'ASSEMBLAGE COMBUSTIBLE 1 INITIAL' TEMPERATURE 1 (TSTRU) 2 (TSTRU) 3 (TCALO) 4 (TCOMBDOP) 5 (TCOMBDOP) 6 (TSTRU) 7 (TSTRU) 8 (TCALO) 9 (TCALO) 10 (TSTRU) 11 (TCALO) ECCO calculation : Doppler (TCOMBDOP = 200°C)

29 29 FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA CEA/DEN/DER Gérald Rimpault XT-ADS Core BOL (68 S/A) Feedback coefficients calculation : Adding steel Doppler, Linked value become -0,673 Gert has found -0.93 and is currently checking his results for Axial Expansion Using the « conditions de fonctionnement » module i.e. Operating conditions Method with 1% density change and 1% height Linked-0,407 pcm/°C-0,363 pcm/°C Non linked-0,087 pcm/°C-0,341 pcm/°C

30 30 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Pb-EFIT CERCER core inner core: 42 assemblies; intermediate core: 66 assemblies; outer core: 72 assemblies,

31 31 EUROTRANS DM1 Safety Meeting, 27-28 November, 2008, FZK, RFA FI6W-CT-2004-516520: Integrated Project on European Transmutation (EUROTRANS) CEA/DEN/DER Gérald Rimpault Pb-EFIT CERCER core towards CERMET Core A Proposal Inner + IntermediateCERCERCERMET Number of Pin per S/A16991 Number of Pin rows per SA75 Pin outer Diameter8.62 mm12.67 mm Cladding RoughnessLisse Pitch to Rod Ratio1.581.46 Pitch (mm)13.63 mm18.46 mm Hydraulic Diameter8.64 mm9.04 mm Cladding Thickness0.60 mm Pellet/Cladding Gap0.160 mm Pellet Diameter7.10 mm11.15 mm Coolant Fraction54.0%46.5% OuterCERCERCERMET Number of Pin per S/A16991 Number of Pin rows per SA75 Pin outer Diameter9.52 mm13.99 mm Cladding RoughnessLisse Pitch to Rod Ratio1.421.31 Pitch (mm)13.54 mm18.34 mm Hydraulic Diameter8.64 mm9.04 mm Cladding Thickness0.60 mm Pellet/Cladding Gap0.160 mm Pellet Diameter8.00 mm12.47 mm Coolant Fraction54.0%46.5%

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