ML13322A057

Summary of 841009 Meeting W/Util & C-E Re Reload Analysis & Associated Tech Spec Changes to Support Unit 2 Restart Following Upcoming Refueling Shutdown

ML13322A057
Person / Time
Site:	San Onofre
Issue date:	10/18/1984
From:	Rood H Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 8410310680
Download: ML13322A057 (23)

Text

Docket Nos.:

50-361 and 50-362 SOT 18 1984 APPLICANTS: Southern California Edison Company (SCE)

San Diego Gas and Electric Company City of Anaheim, California City of Riverside, California FACILITY:

San Onofre Nuclear Generating Station, Units 2 and 3

SUMMARY

OF MEETING TO DISCUSS SAN ONOFRE 2 & 3 RELOAD ANALYSIS On October 9, 1984, members of the NRC staff met with the licensees and their contractors to discuss the recently submitted reload analysis and the associated technical specification changes. Attendees at the meeting are given in. Material presented at the meeting by the licensees is given in. The licensees summarized the reload analysis and the technical specification changes necessary to support Unit 2 restart following the upcoming refueling shutdown.

Harry Rood, Project Manager Licensing Branch No. 3 Division of Licensing

Enclosure:

As stated cc:

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San Onofre Mr. Kenneth P. Baskin Vice President Southern California Edison Company 2244 Walnut Grove Avenue P. 0. Box 800 Rosemead, California 91770 Mr. James C. Holcombe Vice President - Power Supply San Diego Gas & Electric Company 101 Ash Street Post Office Box 1831 San Diego, California 92112 Charles R. Kocher, Esq.

Mr. Mark Medford James A. Beoletto, Esq.

Southern California Edison Company Southern California Edison Company 2244 Walnut Grove Avenue 2244 Walnut Grove Avenue P. 0. Box 800 P. 0. Box 800 Rosemead, California 91770 Rosemead, California 91770 Dr. L. Bernath Manager, Nuclear Department Orrick, Herrington & Sutcliffe San Diego Gas & Electric Company ATTN:

David R. Pigott, Esq.

P. 0. Box 1831 600 Montgomery Street San Diego, California 92112 San Francisco, California 94111 Richard J. Wharton, Esq.

University of San Diego School of Alan R. Watts, Esq.

Law Rourke & Woodruff Environmental Law Clinic Suite 1020 San Diego, California 92110 1055 North Main Street Santa Ana, California, 92701 Charles E. McClung, Jr., Esq.

Attorney at Law Mr. V. C. Hall 24012 Calle de la Plaza/Suite 330 Combustion Engineering, Inc.

Laguna Hills, California 92653 1000 Prospect Hill Road Windsor, Connecticut 06095 Region Administrator-Region V/NRC 1450 Maria Lan/Suite 210 Mr. S. McClusky Walnut Creek, California 92672 Bechtel Power Corporation P. 0. Box 60860, Terminal Annex Los Angeles, California 90060 Resident Inspector, San Onofre NPS c/o U. S. NRC Mr. C. B. Brinkman Post Office Box 4329 Combustion Engineering, Inc.

San Clemente, California 92672 7910 Woodmont Avenue Bethesda, Maryland 20814 Mr. Dennis F. Kirsh U.S. Nuclear Regulatory Commission -

Region V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Attendees at Meeting to Disciss San Onofre Reload Analysis Report October 9, 1984 Name Organization H. Rood NRC/DL/LB3 B. Badera CE C. Chin CE F. R. Nandy SCE M. A. Book CE I. C. Rickard CE H. Balukjian NRC/DSI/CPB H. Neuschaefer CE K. A. Jones CE S. Wu SCE J. T. Reilly SCE G. V. Noordennen SCE D. Bennett CE L. Phillips NRC/DSI/CPB L. Kopp NRC/DSI/CPB G. Hsii NRC/DSI/CPB SONGS-2 CYCLE 2 RELOAD ANALYSIS PRESENTATION TO THE NRC OCTOBER 9, 1984 AGENDA

1. INTRODUCTION

2. OVERVIEW OF RELOAD ANALYSIS REPORT

3. CYCLE 2 DESIGN ISECTIONS 2-61

4.

SAFETY ANALYSIS fSECTIONS 7,R1

5. CPC SOFTWARE CHANGES fSECTION-91

6. TECHNICAL SPECIFICATION CHANGES ISECTION 101

7.

SUMMARY

SONGS-2 CYCLE 2 RELOAD ANALYSIS

1. INTRODUCTION 0

PURPOSE IS TO ASSIST IN THE REVIEW OF THE CYCLE 2 DESIGN 0

METHODOLOGY CHANGES WERE PRESENTED ON JUNE 29 CEN-2P4(S)-P 0

CYCLE 2 DOCUMENTATION

SONGS-2 CYCLE 2 MILESTONES DAIE STATUS MILESTONE ACTIVITY 6/29/84 MEETING HELD MEETING TO DISCUSS METHODOLOGY CHANGES 7/20/84 SUBMITTED SUBMITTAL OF CPC SOFTWARE CHANGE DOCUMENT 9/28/84 SUBMITTED

-RELOO NLSSREPORT AND PART 10/1/84 SUBMITTED RELOAD LICENSE AMENDMENT REQUEST 10/21/84 END OF CYCLE 1 11/15/84 CPC PHASE I/PHASE II TEST REPORTS 11/15/84 FINAL SCU NUMBERS AVAILABLE 1/30/85 STARTUP OF CYCLE 2

SONGS-? CYCLE 2 RELOAD ANALYSIS

2. SONGS-? CYCLE 2 RELOAD ANALYSIS REPORT (RAR)

TABLE OF CONTENTS SECTION

1.

INTRODUCTION AND

SUMMARY

2.

OPERATING HISTORY OF THE REFERENCE CYCLE

3.

GENERAL DESCRIPTION

4.

FUEL SYSTEM DESIGN

5.

NUCLEAR DESIGN

6.

THERMAL-HYDRAULIC DESIGN

7.

TRANSIENT ANALYSIS R.

ECCS ANALYSIS

9.

REACTOR PROTECTION AND MONITORING SYSTEM

10.

TECHNICAL SPECIFICATIONS

11.

STARTUP TESTING

12.

REFERENCES

SnNGS-2 CYCLE 2 RELOAD ANALYSIS

3. SONGS-2 CYCLE 2 DESIGN RAR SECTIONS 2 AND 3 0

CYCLE 1 BASICALLY FULL POWER UNRODDED OPERATION 0

CYCLE 2 IS ANNUAL CYCLE (10,000 MWD/T)

CONVENTIONAL OUT-IN FUEL MANAGEMENT 72 FRESH ASSEMBLIES FULL POWER ESSENTIALLY UNRODDED OPERATION EOC-2 MAX FUEL ROD RURNUP <32,600 MWD/T

SONGS-? CYCLE 2 RELOAD ANALYSIS REPORT SECTION 4 FUEL DESIGN O

MECHANICAL DESIGN ESSENTIALLY IDENTICAL TO FIRST CORE INCREASED SHOULDER GAP O

THERMAL PERFORMANCE ANALYSIS WITH FATES3A CEN-161(B)

WITH 3/83 RESTRICTIONS

SONGS-2 CYCLE 2 RELOAD ANALYSIS SECTION 5 NUCLEAR DESIGN 0

NOMINAL CORE PHYSICS PARAMETERS PEAKING FACTORS REACTIVITY COEFFICIENTS CEA WORTHS 0

ROCS/DIT PHYSICS CODE SYSTEM CENPD-266 n

FIESTA FOR SCRAM REACTIVITY INSERTION CEN-122(F) 0 3D REACTIVITY EFFECTS FOR MODERATOR FEEDBACK SECTION 6 THERMAL-HYDRAULIC DESIGN 0

NOMINAL CORE PARAMETERS 0

STANDARD METHODOLOGY TORC/CETOP CE-1 CORRELATION

4.

CYCLE 2 SAFETY ANALVSIS SECTION 7 NON-LOCA o ALL DESIGN BASIS EVENTS IN THE FSAR WERE REVIEWED FOR CYCLE 2 o FSAR BOU!DS MOST CYCLE 2 EVENTS o SEVEN EVENTS PRESENTED o ANALYTICAL CHANGES FOR CYCLE 2 CESEC-3 CODE

[ENCLOSURE TO LD-R2-0011 SECTION 8 ECCS ANALYSIS o CYCLE 2 ANALYSIS BOUNDED BY CYCLE 1

CYCLE 2 SAFETY ANALYSES PRESENTED A.

EVENTS PRESENTED - RESULTS NOT ROUNDED BY tSAR RUT WITHIN SRP CRITERIA EVENTS PARAMETERS AFFECTED EXCESS LOAD + SINGLE FAILURE RADIATION RELEASE STEAM LINE BREAK RADIATION RELEASE PLUS COOLABLE GEOMETRY FEEDLINE BREAK PEAK RCS PRESSURE BORON DILilTION SHUTDOWN MARGIN B. EVENT FORMALLY PRESENTED FOR FIRST TIME ASYMMETRIC STEAM GENERATOR TRANSIENTS C. EVENTS PRESENTED DUE TO CPC CHANGES EVENTS REASON LOSS OF FLOW REACTOR COOLANT PUMP SPEED TRIP CEA DROP NO CREDIT FOR CPC TRIP

CPC TRIP FOR LOSS OF FLOW ANALYSIS CURRENT CPC TRIP METHODOLOGY FLOW ALGORITHM PROVIDES PROJECTION OF DNBR BASED ON FLOW CHANGES INDEPENDENT OF STATIC AND UPDATE CALCULATIONS CPC TRIPS ON MINIMUM OF PROJECTED DNBR AND STATIC/UPDATE DNBR CPC RANGE TRIP ON PUMP SPEED SET AT 90%

LOSS OF FLOW ANALYSIS CREDITS CPC TRIP BASED ON FLOW PROJECTION CYCLE 2 CPC TRIP METHODOLOGY NO CHANGE TO STATIC/UPDATE DNBR CALCULATIONS LOSS OF FLOW ANALYSIS CREDITS CPC PUMP SPEED RANGE TRIP INSTEAD OF FLOW PROJECTION CPC PUMP SPEED RANGE TRIP SETPOINT RAISED TO 95%

PROVIDES LOSS OF FLOW PROTECTION TO SAME CRITERION - NO VIOLATION OF DNBR SAFDL AVOIDS UNNECESSARY TRIPS DUE TO UNDERFREQUENCY TRANSIENTS

CYCL 2E RPAALYSIS o SAME METHODOLOGY AS TECH. SPEC. CHANGE NPF-10/15-138 o NO CREDIT FOR CPC TRIP IN CEA DROP SAFETY ANALYSIS CEAC STATIC AND XENON -PENALTIES FOR INWARD CEA DEVIATIONS SET = 1.0 STATIC DISTORTION + 15 MIN. XENON OF LIMITING CEA DROP INCLUDED IN DETERMINATION OF REQUIRED DNR MARGIN FOR COLSS TECH. SPEC. CHANGE (T/S 3.1.3.1) WOINDS REMAINING XENON REDUCES UNNECESSARY TRIPS DIUE TO SPURIOUS CEA POSITION INDICATIONS

5. CYCLE 2 CPC SOFTWARE CHANGE [SECTInN 91 o REVISE SELECTED DATA RASE CONSTANTS TO BETTER ACCOMMODATE RELOAD CORE VS. FIRST CORE DIFFERENCES o USE OPPORTUNITY TO MAKE ALGORITHM CHANGES AND TO IMPLEMENT SCO METHODOLOGY o CHANGES ARE EVOLUTIONARY IN NATURE AND PROMOTE CONSISTENCY OF DIGITAL PLANTS START WIITH PALO VERDE ALGORITHMS PLAN SAME SOFTWARE FOR SONGS ('NIT 3 o CPC SOFTWARE MODIFICATIONS DOCUMENT CEN-2R1(S) o SOFTWARE MODIFICATION PROCEDURE CEN-39(A) AND SUPPLEMENT 1 o CONFIRMATORY PHASE I AND II TEST REPORTS

CPC CHANGES FOR CYCLF 2 o CHANGES TO CONSTANTS "ORDINARY" DATA RASE CONSTANTS GRID LOSS COEFFICIENTS REACTOR COOLANT PUMP SPEED TRIP SETPOINT PFMLTD AND PFMLTL RANGE LIMITS*

o MINOR CALCULATIONAL CHANGES HOT PIN TO HOT CHANNEL CONVERSION*

NON UNIFORM HEATING FACTOR MODIFICATION*

REACTOR COOLANT PUMP PRESSURE RISE CALCULATION*

MODIFY HEAT FLUX DISTRIBUTION EXTRAPOLATION o

IMPROVE OPERATIONAL FLEXIBILITY STATISTICAL COMBINATION OF NCERTAINTIES" IMPROVEMENT TO UIPDATE ALGORITHM POWER UNCERTAINTY AS FUNCTION OF CORE POWER o

CPC PERFORMANCE ENHANCEMENT TEMPERATURE SHADOWING FACTOR ALGORITHM IMPROVEMENT

• CHANGES DERIVED FROM IMPLEMENTATION OF PVNGS-1 CYCLE 1

• • SAME METHODOLOGY AS OTHER CPC PLANTS

SCU METHODOLOGY APPLIED TO SONGS SCU METHODOLOGY EXPERIENCE CALVERT CLIFFS UNIT 1 (A)

CALVERT CLIFFS UNIT 2 (A)

ST. LUCIE UNIT L-(CYCLE 5) (A)

ST. LUCIE UNIT 2 (CYCLE 2) (S)

ANO UNIT 2 (A)

PALO VERDE UNITS 1, 2 & 3 (A)

CESSAR-F*

(A)

A -

SUBMITTED AND APPROVED.

S -

SUBMITTED -

UNDER REVIEW,

• SER NUREG 0852, SEPT. 1983, DOCKET NO. STN-50-470

1S CYCLE 2 TECHNICAL SPECIFICATION CHANGES fSECTinN 101 CATEGORIES OF CHANGES RESULT FROM CPC CHANGES IMPLEMENTATION OF ANALYSIS ASSUMPTIONS REVISION OF NUMERICAL VALUES BASED ON CYCLE 2 ANALYSES

TECH. SPEC. CHANGES FOR CYCLE 2 (IMPLEMENTATION OF CPC CHANGES)

REDEFINITION OF CPC ADDRESSABLE CONSTANT USED IN EXCORE DETECTOR TEMPERATURE SHADOWING ALGORITHM ADDITION OF CPC ADDRESSABLE Cf)NSTANT FOR REVISED CORE POWER BIAS ALGORITHM CHANGES RESULTING FROM IMPLEMENTATION BASED ON PVNGS CPC ALGORITHMS

TECH. SPEC. CHANGES FOR CYCLE 2 (BASED ON ANALYSIS ASSUMPTIONS)

POSITIVE MTC LIMIT FROM +0.13 (XIO K/K/oF)

TO

+0.0 POWER > 70%

+0.5 POWER < 70%

RESTRICTION OF REGULATING CEA TRANSIENT INSERTION LIMITS (AND TRANSIENT INSERTION LIMIT FOR PART LENGTH CEAS)

POSITIVE ASI LIMIT FROM +0.50 TO +0.28 (AND FROM +0.50 TO

+0.20 COLSS OUT-OF-SERVICE)

TECH. SPEC. CHANGES FOR CYCLE 2 (BASED ON ANALYSIS RESULTS) o DNBR LIMIT (SC) o MODE 5 SHUTDOWN MARGIN (BORON DILUTION) o COLSS OUT-OF-SERVICE LIMIT LINES (REQUIRED DNR MARGIN ANALYSES) o BORATED WATER SOURCE DATA (COOLDOWN/BORATION ANALYSES) o CEAC/RSPT INOPERABLE PENALTY (REOUIRED DNB MARGIN ANALYSES) o RTD RESPONSE-TIME-DEPENDENT PENALTIES (VARIOUS SETPOINT ANALYSES)

7.

SUMMARY

OF SONGS-2 CYCLE 2 RELOAD ANALYSIS REPORT o

NO SIGNIFICANT FUEL DESIGN CHANGES o

CONVENTIONAL FUEL MANAGEMENT o

IMPLEMENTATION OF LATEST APPRfOVED CODES/NETHODOLOGIES o CPC SOFTWARE CHANGE INCLUDING SEVERAL ALGORITHM CHANGES o SUPPORTING TECH. SPEC. CHANGES

MEETING

SUMMARY

DISTRIBUTION ocket Nols) s75.0-7361362i NRC PDR Local PDR NSIC PRC System LB3 Reading Attorney, OELD GWKnighton Project Manager HRood JLee NRC PARTICIPANTS H. Rood L. Phillips L. Kopp G. Hsii bcc:

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