ML20133K844

Summary of 960123 Meeting W/Listed Attendees in Rockville,Md to Discuss Process for Reivew of Proposed Rev to ABB-CE SBLOCA Emergency Core Cooling Sys Safety Analysis Methods

ML20133K844
Person / Time
Issue date:	01/15/1997
From:	Stewart Magruder NRC (Affiliation Not Assigned)
To:	Matthews D NRC (Affiliation Not Assigned)
References
NUDOCS 9701210368
Download: ML20133K844 (37)

Text

.

[g>.R MCy k UNITED STATES NUCLEAR REGULATORY COMMISSION o

WASHINGTON, D.C. 20555-0001

.....,o January 15, 1997 MEMORANDUM T0:

David B. Matthews, Chief Generic Issues and Environmental Projects Branch Division of Reactor Program Management Office of Nuclear Reactor Regulation FROM:

Stewart L. Magruder, Project Manager Generic Issues and Environmental MN Projects Branch Division of Reactor Program Management

)

Office of Nuclear Reactor Regulation

SUMMARY

OF JANUARY 23, 1996, MEETING WITH ABB COMBUSTION ENGINEERING REGARDING REVISION TO SMALL BREAK LOSS-0F-COOLANT ACCIDENT EVALUATION MODEL On January 23, 1996, representatives of ABB Combustion Engineering (ABB-CE) and Entergy Operations, Incorporated met with representatives of the Nuclear Regulatory Commission (NRC) at the NRC's offices in Rockville, Maryland.

' provides a list of meeting attendees.

The purpose of the meeting was to discuss the process for review of a proposed revision to the ABB-CE Small Break Loss of Coolant Accident (SBLOCA) Emergency Core Cooling System safety analysis methods.

In a letter dated February 13, 1996, ABB-CE stated that they considered parts of the meeting presentation material to be proprietary information.

In a letter dated June 7, 1996, ABB-CE submitted a non-proprietary version of the presentation material.

In a letter dated December 12, 1996, the NRC agreed with ABB-CE's proprietary determination and agreed to withhold portions of the presentation material from public disclosure. Attachment 2 contains the non-proprietary presentation material.

The ABB-CE representatives opened the meeting with a short discussion of the background of the ABB-CE SBLOCA code submittals. The Entergy representative discussed the potential application of the revised SBLOCA evaluation model (EM) and the realistic evaluation model (REM) to the Waterford plant.

The ABB-CE representatives then discussed the technical background and status of the SBLOCA REM including a discussion of its compliance with the code scaling, applicability, and uncertainty (CSAU) evaluation methodology. The staff noted @h/A that it would be helpful for ABB-CE to include a discussion of the REM process N

and how it complies with CSAU in the first volume of the topical report. The i

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staff also stated that the uncertainty analysis and two-phase flow models will T

be looked at closely.

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D. Matthews

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January 15, 1997 The ABB-CE representatives next discussed the proposed revision to the SBLOCA EM. They stated that the objectives of the EM revision were to support i

Entergy's plan for a power uprate at Waterford and to minimize the impact on i

the NRC's review of the SBLOCA REM.

The staff stated that they would probably begin the review of the EM revision in the Spring and, therefore, have a better chance to support ABB-CE's proposed schedule for that model than a schedule for the SBLOCA REM because they could not predict when they could begin the review of the SBLOCA REM.

The group agreed that the next step in the process should be a letter from Entergy spelling out the need for the topical report approvals. A consensus was also reached that a kick-off meeting for the EM revision should be held after the revision is submitted and a contractor has been chosen by the staff for the review.

Attachments: As stated cc w/atts:

See next page

D. Matthews January 15, 1997 The ABB-CE representatives next discussed the proposed revision to the SBLOCA' EM. They stated that the objectives of the EM revision were to support Entergy's plan for a power uprate at Waterford and to minimize the impact on the NRC's review of the SBLOCA REM. The staff stated that they would probably begin the review of the EM revision in the Spring and, therefore, have a better chance to support ABB-CE's proposed schedule for that model than a schedule for the SBLOCA REM because they could not predict when they could begin the review of the SBLOCA REM.

The group agreed that the next step in the process should be a letter from Entergy spelling out the need for the topical report approvals.

A consensus was also reached that a kick-off meeting for the EM revision should be held after the revision is submitted and a contractor has been chosen by the staff for the review.

Attachments: As stated cc w/atts:

See next page Distribution:

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0FFICIAL RECORD COPY

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i NRC/ABB-CE MEETING ON SBLOCA REM LIST OF ATTENDEES January 23, 1996 1

58ME ORGANIZATION J

Philip Curtis ABB-CE Ernie Jageler ABB-CE Joe Cleary ABB-CE Ed Lee ABB-CE Dick Whipple ABB-CE

't F. Titus Entergy Ray Burski Entergy Bob Jones NRC/NRR Tim Collins NRC/NRR Frank Orr NRC/NRR 1

Stu Magruder NRC/NRR i

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SBLOCA REM NRC/ABB/EOI Meeting 1/23/96

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NRC/ABB/EOI MEETING MEETING DATE: TUESDAY, JANUARY 23,1996 MEETINGTIME: 10:00 A.M.

LOCATION: NRC OFFICES, WHITE FLINT, MD h

g SBLOCA REM REVIEW AND i

PLANNING MEETING i

SBLOCA REM PREPARED IN COOPERATION WITH THE C-E OWNERS GROUP t

A Et El Page1 NON-PROPRIETARY VERSION 7%B5Ep

SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 AGENDA NRC/ABB/EOI SBLOCA REM REVIEW AND PLANNING MEETING TUESDAY, JANUARY 23,1996 10:00 A.M.

NRC OFFICES, WHITE FLINT, MD 1.

INTRODUCTION - P. Curtis, V.P. Engineering Operations, ABB CENO - 5 Minutes 2.

ENTERGY's PERSPECTIVE AND ACTION PLAN - F. Titus, V.P. Engineering, Entergy Operations, Inc. - 5 Min

,3.

MEETING PURPOSE - P. Curtis, V.P. Engineering Operations, ABB CENO - 5 Minutes

. 4.

IIISTORY AND STATUS OF SCLOCA REM i'

- R. Burski, Director Nuclear Safety, Waterford 3, Member of CEOG Steering Committee - 5 Minutes 5.

TECIINICAL BACKGROUND AND STATUS OF TIIE SBLOCA REM - E. Jageler, ABB CENO - 20 Minutes 6.

RECONCILIATION / ROAD MAP OF SBLOCA REM TO CSAU - N. E. Lee, ABB CENO - 20 Minutes 7.

PROPOSED ACTION PLAN FOR SBLOCA REM REVIEW AND APPROVAL - E. Jageler, ABB CENO - 10 Min 8.

PROPOSED ABB SULOCA EM REVISION (1996) - J. Cleary, ABB CENO - 10 Minutes 9.

PROPOSED REVIEW AND APPROVAL SCIIEDULES FOR SBLOCA REM AND 1996 SBLOCA EM

- E. Jageler, ABB CENO - 20 Minutes

10. MEETING

SUMMARY

- P. Curtis, V.P. Engineering Operations, ABB CENO - 5 Minutes A It 59 Page 2 7%B555

SBLOCA REM NRC/ABB/EOl Meeting 1/23/96 ENTERGY'S PERSPECTIVE

+ Improve cost e:?fectiveness l + Eva.uating 2z-Mon ~::a Cycle anc. Power Uprate

+ Need success pat:a for SBLOCA

+ Alternative review approaches suggested in t:

1e XRC etter da':ec 12/13/95 t

e Page 3 kNTERGY

SBLOCA REM NRC/ABB/EdI Meeting 1/23/96 ACTION PLAN FOR WATERFORD 3 UPRATE A n K Eva_uation Moc el revision (PARCH REM)

Wi 1 fi~ e EM revision request unc.er 10CFR50.L6(a)(:.)(ii) l Short term, EM revision anrova. rec uirec. ay Decem aer,1996 Long term, SBLOCA REM wi: provic.e ac citiona.

margin Page 4 I

ENTERGY

l SELOCA REM NRC/ABB/EOI Meeting 1/23/96 l

INTRODUCTION M.EETING PURPOSE

+ ESTABLISH A PLAN FOR REVIEW AND APPROVAL OF e

SBLOCA REM Acceptable to NRC Optimizes the Use of NRC Resources Supports the Needs of Utilitics Depending on SBLOCA REM for Improved Operation

+ ESTABLISH A PLAN FOR REVIEW AND APPROVAL OF AN EM SUPPLEMENT Supports [

j for Waterford 3 Prior to Commitment of Major Capital Fun'ds Utilizes the Early Portions of the SBLOCA REM Review to Reduce the Impact of this EM Supplement A ED El Page 3 7%E9Ep

I SBLOCA REM NRC/ABB/EdI Meeting 1/23/96 SBLOCA REM Background

+ CEOG REM initia. Topica. suamittec in 1988 g

+ Previous NRC review and changes

- INEL pre..iminary review anc. questions i

answerec. in 1990

- 1991 NRC questions resu..tec. in upgradec.

Topica. Report submittec. in : 993

+ CEOG dialog wita XRC managemeig Page 6 ENTERGY

l!

SBLOCA REM NRC/ABB/EO Meeting 1/23/96 l

1 Technical Background and Status of the SBLOCA REM

,i k

E. F. Jageler Sr. Consultant - Systems and Transients Program Manager for REM Methodologies ABB Combustion Engineering Nuclear Operations A BR Et Page 6 pggggy

.. l; SBLOCA REM NRC/ABB/EO Meeting 1/23/96 i

Objectives Review t1e status of the SBLOCA REM Plan and kickoff the approval process s

Determine how we can work together to t

bring closure to t:1e SBLOCA REM

)

review within a schedtte consistent with Our clients needs Establish action items 1

A Et Et Page 7 E%EEEE

h-i SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Elements of SBLOCA REM i

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CEFLASH-4AS/ REM j

PARCH / REM Uncertainty Evaluation Methods Ap%ications to C-E XSSSs A ED Et Page 8 7%B555

SBLOCA REM NRC/ABB/EO Meeting 1/23/96 Responses to NRC Questions New documentation addressed official questions Included additionalIETs and SETS 3

Greater detail in model and correlation definitions Clarifications in virtually every section Addressed difficult issues on the uncertainty evaluation by adding [

]

Work performed by team of engineers not originally involved in development as independent che'ck A BR BD l

i

SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 1991 Official Question Categories Type 1 - Clarifications and explanations (26)

Type II - Justificationa, assessments, and basis (12)

Type III - Comparisons to data (10)

Type IV - Uncertainty Evaluation (11) i Type V - Question #63 i

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Page 10 8%EEEE

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SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Results of SBLOCA REM Documentation Eaca important moc.e. anc. corre..ation was redocumentec. as fo.ows:

Description Assessment (Data Base, Accuracy, and Scaling)

Application to SBLOCA analysis Coding Documentation mac.e consistent wita CSAU Somejustifications incluc.ec. ac.c.itiona. sensitivity stuc.ies [

t A Et 59 Page11 ESEEEE

t. i SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 l

Results of SBLOCA REM Documentation (continuec.,2 of 3)

Increasec.num3er anc coverage ofIETs Strengthened code assessment i

j Code comparison to data continued to [

]

Continued overall excellent agreement on transient pressure and inventory distribution l

Increasec. num aer anc. coverage of SETS Strengthened justification of applicability range l

Page 12 7%B555 i

+.

SBLOCA REM NRC/ABB/EO Meeting 1/23/96 Results of SBLOCA REM Documentation (continued,3 0:?3)

~

Performec. [

]

L 1

Define level of confidence Better ensure "no compensating errors" Furtherjustification for [

] scaling and geometric uncertainties Provide a comparison and evaluation of how the SBLOCA REM addresses each element in CSAU A Et 59 Page 13 7%EEEE

NRC/ABB/EOI Meeting 1/23/96 SBLOCA REM Reconciliation / Road Map of SBLOCA REM to the Code Scaling, Applicability, and Uncertainty (CSAU)

Evaluation s'

January 23,1996 Naugab E. Lee Sr. Consultant - Systems and Transients ABB Combustion Engineering Nuclear Ope' rations A It Et Page 14 7%B555

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NRC/ABB/EOI Meeting 1/23/96

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SBLOCA REM Objectives Comparison Between CSAU and ABB SBLOCA REM Approach

1. Documentation

2. Evaluation Methodology v

CSAU

1. NUREG-1230: Compendium of ECCS Research

2. NUREG/CR-5249: LBLOCA CSAU Report

3. NUREG/CR-5818: SBLOCA CSAU Report ABB CE SBLOCA REM Topicals CEN 420-P: 1,11, lil and Two Supplements JL ED ED Page 15 7%B555

'g..

SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Documentation Mapping CSAU Required Documents SBLOCA REM CEN 420-P Annotated Codes

<-> CEFLASH-4AS/ REM PARCH / REM

,i Theory Manual

<-> Volume i Users' Manual

<-> Volume ill Programmers' Manual

<-> Volume 1 Code Assessment

<-> Volume 11 (Sect. 2 & 3)

Volume I (SET)

Plant Analysis and

<-> Volume 11 (Sect. 3, 4, 5)

Uncertainty Evaluation Volume ll, Supplement 1 Volume 11, Supplement 2 AElEt Page 16 7%E555

at

't.

SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Summary on Documentation 1.

Submitted topicals (CEN 420-P) have all required elements.

2.

Volume I has been substantially upgraded to address NRC question #63.

3.

Code assessments (IETs and SETS) are described in Volumes I and II.

i y

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SBLOCA REM NRC/ABB/EO Meeting 1/23/96 Evaluation Methodology Mapping

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LOCA REM NRC/ABB/EO Meeting 1/23/96 SAMPLE RESULT FOR 2700 MWt PWR l

eliuumi 1

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A EtIt Page 19 7%B559

t-SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 t

Summary on Evaluation Methodology A

1 3i f

A It Et Page 20 7%E559 l

t

..t SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Conclusions I

1.

CEN 420-P meets CSAU requirements 4

emumm i

t A ED Et Page 21 7%NDED i

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' y. l

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SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Proposed Action Plan for SBLOCA REM Review and Approval Key Elements NRC and contractor begin review on existing documentation l

Intensive detailed technical meeting

,i Integrate lessons learned - define new documentation needs General Concepts Presentation to ACRS j

Question / Comment resolution with NRC ACRS revicw Question / Comment resolution with ACRS SER I

i A ED ED Page 22 7%B555 i

U.

SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Proposed Action Plan for SBLOCA REM Review and Approval Next Steps NRC, Contractor, and ABB hold detailed technical i

review meeting Initiate review of the SBLOCA REM on the PARCH / REM [

1 l

i JL ElEt I

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SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 j

ABB SBLOCA EVALUATION MODEL REVISION J.M. Cleary Supervisor - LOCA Analysis Group l

ABB Combustion Engineering Nuclear Operations l

Page 24 7%EREN

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SBLOCA REM NRC/ABB/EO Meeting 1/23/96 ABB SBLOCA EVALUATION MODEL REVISION Objectives of the SBLOCA EM Revision f

l Support EOI's plan for Waterford 3 power uprate

-[

]

Spring 1997 license submittal Minimize impact on NRC review of SBLOCA REM A BR 59 Page 25 pggggg

'I SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 l

1 k

ABB SBLOCA EVALUATION MODEL REVISION Description of the SBLOCA EM Revision i

1 l

Jk ED ER Page 26 7%EDE5 f

c SBLOCA REM NRC/ABB/EO Meeting 1/23/96 ABB SBLOCA EVALUATION MODEL REVISION 1

Features of the SBLOCA EM Revision

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1. %EDED

NRC/ABB/EOI Meeting 1/23/96 SBLOCA REM ABB SBLOCA EVALUATION MODEL REVISION Summary The SBLOCA EM revision will [

]

for Waterford 3. Preliminary calculations indicate a Peak Cladding Temperature of approximately 2050oF versus the i'

acceptance criterion of 2200oF.

The revision minimizes impact on the NRC review of the SBLOCA REM

-[

]

Documentation will rely heavily on information already reviewed by the NRC A Et 59 Page 28 7%E559

r SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Review and Approval Schedule for SBLOCA REM TASK DATE NRC initiate review, technical meeting with ABB NRC provide comments on PARCH / REM review l

NRC and ABB establish additional documentation General concepts presentation to ACRS ABB submit additional documentation

~

NRC issue review questions on SBLOCA REM ABB question / comment resolution with NRC ACRS review I

ABB question / comment resolution with ACRS/NRC NRC issue SER i

JL ER Et i

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SBLOCA REM NRC/ABB/EOI Meeting 1/23/96 Review and Approval Schedule for 1996 SBLOCA EM TASK DATE NRC initiate review, technical meeting with ABB NRC provide comments [

]

ABB submit documentation for revised EM NRC issue review questions on EM submittal ABB respond to review questions NRC issue SER for revised EM A ED ED Page 31 E%EEEE

5.

SBLOCA REM NRC/ABB/EOI Meeting 1/23/96

)

SUMMARY

1 Firm scaeduLe for XRC and ABB on SBLOCA REM review XRC-approved EM revision plan required before committing furtaer resources to (prate ABB action items EOI action items A ED ED Page 32 E%EEEE

h

$l' ABB-Combustion Engineering, Inc.

cc:

Mr. Charles B. Brinkman, Director Nuclear Systems Licensing ABB-Combustion Engineering, Inc.

Post Office Box 500 1000 Prospect Hill Road Windsor, Connecticut 06095-0500 Mr. Ian C. Rickard, Director t

Operations Licensing ABB-Combustion Engineering Nuclear Operations Post Office Box 500 1000 Prospect Hill Road

}

Windsor, Connecticut 06095-0500 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations ABB-Combustion Engineering, Inc.

12300 Twinbrook Parkway, Suite 330 Rockville, Maryland 20852 L

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