ML042800541

Meeting Handouts on Salem Units 1 & 2 Full AST Implementation

ML042800541
Person / Time
Site:	Salem
Issue date:	09/09/2004
From:	Public Service Enterprise Group
To:	Office of Nuclear Reactor Regulation
References
Download: ML042800541 (7)

Text

hRfCERIJUCEEAK SALEM UNITS I AND 2 FULL AST IMPLEMENTATION SEPTEMBER 9, 2004 Jack Grant - Project Manager ateven Mannan -.Lcunsng Suparvtart Jesus (Jay) Arias - Project U.censing Barry Barkley - Project Engineer

copai rotei - Nucore AGENDA Introduction.........

...... Steve Mannon Overview......

......... Jack Grant Licensing Submittal.............. Jay Arias Dose Analysis...............

Gopal Patel Additional Evaluations.......... Barry Barkley Summary.......

........ Jack Grant Action Items..........

..... Jay Arias Overview Project Summary Project Team Schedule I

Licensing Submittal

• LCR S03-05 submitted 4126/2004

• Licensing Basis Changes knplementaUonofAltemant Sourue Term Claw iRG 1.183)

• ESF Leakage

• Control Room In4eekage

• AuxiNary Bnitding Filtraton - no credil takn

• Auoitiary BuL.fdnp Vengilatn - expanded LCO eppliblity

• Industry AST Submittals

• Addressed RAts in our submittal

. Atended pubitc meeting DBA Dose Analysis

• Control Room In-Leakage

• Atmospheric Dispersion

• DBA Dose Calculations DBA Dose Analysis Control Room In-leakage

-Control Room Habitability Model

• CLB Analysis: 60 dcm unfiltered inleakage

• AST Analysis: Assumed 150 dim unfiltered in-leakage

• Tracer Gas Test Results

• 96 cdm or less measured by NCSILagus. completed 6103

• GL 2003-01, TSTF 448 - Not Addressed I

2

DBA Dose Analysis Atmospheric Dispersion

• 1996 Combined Control Room Design Change: Modified version of ARCON95

• 2002 Amendments 251 and 232:

ARCON96 & DG-11l1 (for selective AST Implementation for FHAs)

• Current submittal: ARCON9G & RG 1.194 (for full Implementation of the AST)

DBA Dose Calculations LOCA: ESF Leakage Model Based on -1 gpm leakage 40% of core iodine inventory in sump Only a fraction of iodine In recirculated sump water Is available for release to the environment (0.4 x 4.85 x 3

- 6% of core Inventory) 10% flash fraction No ABV filtration credited 3

DBA Dose Calculations LOCA: Containment SDrav Model

• 75% coverage

• Injection and recirculation sprays are credited

• 10 minute gap Is modeled between the Injection and recirculation phases I.............

DBA Dose Calculations LOCA

• Assumptions

• Evaluations

• Results:

3.83 rem Control Room 3.47 rem EAB 1.21 rem LPZ D a DBA Dose Calculations SGTR

• AssumptIons

• Evaluations

• Results:

(Largest of the Concurrent & Preaccident Iodine Case) 0.59 rem Control Room 0.22 rem EAS 0.33 rem LPZ 4

DBA Dose Calculations MSLB

• Assumptions

• Evaluations

• Results (Concurrent Iodine Case):

0.85 rem Control Room 0.54 rem EAB 0.19 rem LPZ I-DBA Dose Calculations Locked Rotor

• Assumptions

• Evaluations

• Results:

1.30 rem Control Room 1.26 rem EAB 0.51 rem LPZ 71-DBA Dose CalculatIons Control Rod MEUifon

• Assumptions

• Evaluations

• Results:

1.37 rem Control Room 0.25 rem EAB 0.13 rem LPZ 5

= DBA Dose Calculations Dose Results

• LOCA 3.83 rem Control Room 3.47 rem EAB 1.21 rem LPZ

• SGTR 0.58 rem Control Room

• MSLB 0.85 rem Control Room

• Locked Rotor 1.30 rem Control Room

• CRE 1.37 rem Control Room DBA Dose Calculations Dose Comrarlsons CLE CR thyroid dose AST CR TEDE dose margins (TID):

margins:

LOCA-5%

LOCA - 23%

SGTR-90%

SGTR - 88%

MSLB-80%

MSLB - 83%

LRA - 75%

LRA - 74%

CRE-56%

CRE -73%

Additional Evaluations

• Hope Creek control room habitability

• TSC habitability

• EQ Program Impact

• Vial area access mission doses

• SumppH

• Waste Gas Decay Tank and Volume Control Tank Ruptures

• Letdown Line Break Accident 6

Additional Evaluations RH Analysis

• Current Licensing Basis - Sump pH Is >7 Radoltysis of cable In containment was not part Of onginal Westinghouse Calculation

• Effects of cable radiolysis and other factors known to be minor

• Salem confirmation evaluabon was done with bounding Hypalon vatues (8.4 to 7.4)

• Results pH remains above 7

• Salem has a T.S. Limit on NaOH. Spray Additive Tank Summary

• Conservative Approach (assumptions)

• Operational Flexibility

• Dose Margins

• Schedule 7