ML20069H507

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Testimony of ML Lee Re Low Fuel Loading Pattern Designed to Mitigate Conditions That Might Contribute to Increased Likelihood of Pressurized Thermal Shock.Certificate of Svc Encl
ML20069H507
Person / Time
Site: Indian Point  Entergy icon.png
Issue date: 04/01/1983
From: Michael Lee
CONSOLIDATED EDISON CO. OF NEW YORK, INC.
To:
References
REF-GTECI-A-49, REF-GTECI-RV, TASK-A-49, TASK-OR ISSUANCES-SP, NUDOCS 8304060178
Download: ML20069H507 (10)


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  • a3 APR -4 N1 :20 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION i

l ATOMIC SAFETY AND LICENSING BOARD.

Before Administrative Judges:

Louis J.

Carter, Chairman Frederick J.

Shon I

Dr. Oscar H.

Paris 4

I


x In the Matter of

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Docket Nos.

CONSOLIDATED EDISON COMPANY OF NEW YORK,)

50-247 SP i

INC. (INDIAN Point, Unit No. 2) 50-286 SP POWER AUTHORITY OF THE STATE OF NEW YORK (Indian Point, Unit No. 3)

)

________________________________________x l

l CON EDISON'S TESTIMONY OF MIN L.

LEE ON LOW LEAKAGE LOADING PATTERN l

ATTORNEY FILING THIS DOCUMENT:

Brent L.

Brandenburg i

CONSOLIDATED EDISON cot 1PANY OF NEW YORK, INC.

4 Irving Place New York, New York 10003 (212) 460-4600

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8304060178 830401 PDR ADOCK 05000247 T

PDR

My name if Min L.

Lee.

Since 1978 I have been the A

Chief Nuclear Engineer at Consolidated Edison Company.

statement of my professional qualifications is attached.

The purpose of my testimony is to address the low leakage fuel loading pattern (LLLP) that is in place at Indian Point Unit No. 2 (IP2).

This design mitigates conditions that might contribute to an increased likelihood of pressurized thermal shock (PTS).

The concern over PTS derives from the fact that the reactor vessel materials lose some of their initial ductility due to neutron irradiation occurring during normal unit operation.

The LLLP reduces neutron irradiation of vessel materials, and thus the likelihood of occurrence of PTS.

Indian Point Unit No. 2 started operation in May 1973 and is currently in its sixth fuel cycle of operation.

During the first five fuel cycles, it was operated with a standard fuel loading pattern.

The standard fuel loading pattern consisted of placing only new fuel assemblies at the core periphery during each refueling.

The LLLP program utilizes a fuel loading pattern which instead strategically places some irradiated (and therefore less reactive) fuel assemblies at tne core periphery.

This reduces the number of neutrons emitted from the core

periphery achieving lower neutron irradiation of the reactor vessel wall.

During 19 79, a scoping study under the supervision cf Professor D.

R.

Harris of Rensselaer Polytechnic Institute in Troy, 1:ew York, was initiated to evaluate various fuel cycle optimization configurations for IP2.

Among the configurations found to be feasible was the low leakage arrangement described above.

Subsequently, specific designs prepared by Westinghouse, the IP2 fuel supplier, were analyzed and conclusions reached favoring the LLLP.

In July 1981, Con Edison directed Westinghouse to incorporate the LLLP into the core design for Cycle 6.

Cycle 6 commenced operation in January, 1983.

Present Company plans are to continue LLLP throughout the remaining service life of the plant, employing even more advanced procrams when they are proven effective.

Based on an IP2 specific analysis performed by Westinghouse, the LLLP design as incorporated in Cycle 6 will reduce fast neutron flux at the point of peak vessel wall exposure by 44% compared to a standard fuel loading pattern.

The LLLP design is projected to give I

approximately the same peak vessel wall exposure at the end of 32 Effective Full Power Years (EFPYs) of operation as l l

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1 the standard loading design at the end of 20 EFPYs.

Actual

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neutron flux measurements made at the beginning of Cycle 6 operation with the neutron detectors located outside the vessel wall were found consistent with the above analysis.

i The reduction in vessel wall neutron fluence will result in a slower rate of increase of RT NDT'

% reference temperature, nil-ductility transition."

Using the NRC's prescribed method of calculating RT NDT' Westinghouse calculated that the RT values at 32 MDT EFPYs, for the IP2 LLLP design, will be 274 F and 250'F for the circumferential and the axial flaws, respectively.

The NRC screening criteria (Ref: NRC Report SECY-82-465, Nov.

23, 1982 " Pressurized Thermal' Shock") are 300'F for the circumferential flaw and 270 F for the axial flaw.

Theref o re',

the NRC screening criteria will not be exceeded i_

i for the, life of the IP2 plant, assumed to be 32 EFPYs, or

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40 calendar years at an 80% capacity factor.

IP2 has accumulated 5.2 EFPYs as of January, 1983.

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0 ATTACD8 "."I' MIN L. LEE

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ChiefvNuclear Engineer SPECIAL QUALIFICATIONS:

Over twenty #1ve years in nuclear science and and r:uclear power fields, including reactor core analysis, nuclear fuel management, nuclear safety, radiological protection and related research.

EDUCATION:

Bachelor of Science (Electrical Engineering), Manhattan College, New York, 1952.

Master of Science (Electrical Engineering), University of Illinois, 1953.

Graduate, International School of Nuclear Science and Engineering, Argonne National Laboratory, 1953.

Graduate, Oak Ridge School of Reactor Tecnnology, Oak Ridge National Laboratory 1959.

Master of Science (Nuclear Engineering), Massachusetts Institute of Technology, 1965.

Doctor of Philosophy (Nuclear Engineering), Massachusetts Institute of Technology, 1968.

Graduate, Executive Program of Business Administration, Columbia University, 1982.

EXPERIENCE 1978 - Present Chief Nuclear Engineer, Nuclear Engineering Department, Consolidated Edison Co. of New York, NY Responsibilities include all engineeri.ng aspects of nuclear fuel, nuclear systems evaluation, nuclear licensing and nuclear safety.

1969 - 1978 Reactor Fuel Engineer, Nuclear and Meci anical Engineering Department, Consolidated Edison Co. of New York, NY Responsibilities included fuel cycle analysis, reactor core engineering, fuel design safety evaluation, fuel perfcrmance evaluation and fuel cycle startup progras.

1968 - 1969 Engineer, Mechanical Engineering Depart:nent, Consolidated Edison Co. of New York NT Respons bilities included nuclear fuel management, nuclear fuel cycle engineering, reacter analysis and ccc.ercial aspec s c: nucimir f uel crece.

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1964 - 1968 Teaching and Research Assistant, Nuclear Engineering Depa rtment, Massachusetts Institute of Technology.

Assistant to Professors I. Kaplan, R.

Evans G. Brownell and E. Mason.

1959 - 1964 Associate Professor, Institute of Nuclear Science, National Tsing Hua Univerisity, Taiwan.

Responsibilities included Head of Health Physics Section and lectures on reactor control and nuclear instru=entation.

1954 - 1957 Engineer, Office of Steam Power Project, Taiw?

Power Co. Taiwan.

Responsibilities included Subsection Head, Gc-rerator and Switchgear Subsection, Nanipu and Shen-au Steam Power Projects.

PROFESSIONAL ACTIVITIES-American Nuclear Society EPRI - Safety and Analysis Task Force EEI - Nucl' ear Fuels Ccmmittee Chinese Institute of Engineers, USA SIGRA XI, 2 tional Honorary Society ETAhPA NU,. National Honorary Society PUBLICATIONS:

Experience with Neutron Dose on Shionent of Hich Burnuo Fuel, ANS Transactions, Volume 14, No. 1, June, 1971 Nuclear Engineerine Education from a Utility Viewcoint, ANS Transactions, Volume 14, No. 2 October 1971 Fuel Performance of indian Point Unit No. 1, ANS Transactions, Volume.16, June, 1973 Measurement and Analysis of Core Physics Parameters - A Utility Viewpoint, ANS Transactions, Volume 17, November 1973 Performance of Indian Point Unit No.

2, Utility Nuclear Fuel Performance Conference, Atlanta, Georgia, October 1975 A Review of Physics Analysis of Indian Point Unit No.

2 j

Spent Fuel Storace Packs, ANS Convention, Toronto, Canada, June 1976 An Overview of PWR Sna11 Breale LOCA Enalveis and Its Amlication Since 11

-2, Symposium on Nuclear Power, Chinese-Ae.erican Ungineering and i

Management Institute, October, 1980, New York, NY.

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UNITED STATED OF AMERICA NUCLEAR REGULATORY COMMISSION ATOMIC SAFETY AND LICENSING BOARD i

Before Administrative Judges:

James P.

Gleason, Chairman Dr. Oscar H.

Paris Frederick J.

Shon

_________________________________x CONSOLIDATED EDISON COMPANY OF Docket Nos. 50-247-SP l

50-286-SP NEW YORK, INC. (Indian Point, Unit No. 2)

POWER AUTHORITY OF THE STATE OF y

NEW YORK, (Indian Point, April 1, 1983 Unit No. 3)

__________________________-------x CERTIFICATE OF SERVICE I certify that I have served copies of Con Edison's Testimony of Min L.

Lee on Low Leakage Loading Patterns by deposit in the United States mail, first class, postage prepaid this 1st day of April, 1983.

t Mr. Frederick J. Shon Docketing and Service Branch Administrative Judge Of fice of the Secretary Atomic Safety and Licensing U.S. Nuclear Regulatory Board Commission Washington, D.C.

20555 U.S. Nuclear Regulatory Commission

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James P.

Gleason, Esq., Chairman Washington, D.C.

20555 Administrative Judge 513 Gilmoure Drive James A.

Laurenson l

Silver Springs, Maryland 20901

' Administrative Judge Atomic Safety and Licensing Dr. Oscar H.

Paris Board Administrative Judge U.S.

Nuclear Regulatory Atcmic Safety and Licensing Commission Board Washington, D.C.

20555 U.S.

Nuclear Regulatory Commission Washington, D.C.

20555 i

s

Joan Miles Alan Latnan, Esq.

Indian Point Coordinator 44 Sunset Drive New York City Audubon Societ' C ro ton-on-liud s o n, New ~crk 105:~

71 W. 23rd Street, Suite 1323 New York,.;ew York 10010 Richard M.

Parraman, Esc.

Lorna S<112 man Greater New York Council on Friends of the Carth, Inc.

Energy 208 West 13th Strae c/o Dean R.

Corren, Director New York, New York 10011 New York University 26 Stuyvesant Street Zipporah S.

Fleisher New York, New York 10003 West Branch Conservation 443 Buena Vista Road Atomic Safety and Licensing New York, New York 10956 Board Panel U.S.

Nuclear Regulatory Mayor F.

Webster Pierce Commission Village of Buchanan Washington, D.C.

20555 236 Tate Avenue Buchanan, New York 10511 Atomic Safety and Licensing Judith I:essler, Coordinator Appeal Board Panel Rockland Citizens for Safe U.S.

Nuclear Regulatory Energy Commission 300 New IIempstead Road Washington, D.C.

20555 New City, ';ew York 10956 Richard L.

Brodsky David :I. Pikus, Esq.

Member of the County Legislature Richard F.

Czaga, Esq.

Westchester County 330 Madison Avenue County Office Building New York, New York 10017 White Plains, New York 10601 Phyllis Rodriguez, Spokesperson Amanda Potterfield, Esq.

Parents Concerned About New York Public Interest Indian Point Research Group, Inc.

P.O.

Box 125 9 Murray Street, 3rd Floor Croton-on-Hudson, New York 10520 New York, New York 10007 Charles A.

Scheiner Janice Moore, Esq.

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Co-Chairperson Offica of the Execitive l

Westchester People's Action Legal Director l

Coalition, Inc.

U.S.

Nuclear Regulatory l

P.O.

Box 488 Commission White Plains, New York 10602 Washington, D.C.

20555 Stewart M.

Glass Regional Counsel, Room 1347 Federal Emergency Management l

Agency

'6 Federal Plaza New York, New York 10278 1

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Paul F. Colarulli, Esq.

Charles J.

Maikish, Esq.

Joseph J.

Levin, Jr.,

Esq.

Litigation Division Pamela S.

Horowitz, Esq.

The Port Authority of Charles Morgan, Jr.,

Esq.

New York and New Jersey Morgan Associates, Chartered One World Trade Center 1899 L Street, N.W.

New York, New York 1004S Washington, D.C.

20036 Ezra I.

Bialik, Esq.

Charles M.

Pratt, Esq.

Steve Leipsiz, Esq.

Stephen L.

Baum New York State Attorney Power Authority of the State General's Office of New York Two World Trade Center 10 Columbus Circle New York, New York 10047 New York, New York 10019 Andrew P.

O'Dourke Ellyn R.

Weiss, Esq.

Westchester County Executive William S.

Jordan, III, Esq.

148 Martine Avenue Harmon & Weiss White Plains, New York 10601 1725 I Street, N.W.,

Suite 506 Washington, D.C.

20006 Renee Schwartz, Esq.

Paul Chessin, Esq.

Joan Holt, Project Director Laurens R.

Schwartz, Esq.

Indian Point Project Botein, Hays, Sklar & Herzberg New York Public Interest 200 Park Avenue Research Group New York, New York 10166 9 Murray Street New York, New York 10007 Stanley B.

Klimberg New York State Energy Melvin Goldberg 2 Rockefeller State Plaza Staff Attorney Albany, New York 12222 New York Public Interest Pesearch Group Ruth Messinger 9 Murray Street Member of the Council of the New York, New York 10007 City of New York District #4 Jeffrey M.

Blum City Hall New York University Law School New York, New York 10007 423 Vanderbilt Hall Washington Square South Marc L.

Parris, Esq.

New York, New York 10012 County Attorney County of Rockland Donald Davidoff, Director 11 New Hempstead Road Radiological Preparedness New City, New York 10010 Group Empire State Plaza Craig Kaplan, Esq.

Tower Building - Room 1750 National Emergency Civil Albany, New York 12237 Liberties Committee 175 Fifth Avenue - Suite 712 New York, New York 10010

Jonathan D.

Feinberg New York State Public Service Commission David 3.

Duboff Three Empire State Pla?.a

'!estchester People's Albany, New York 12223 Action Coalition 255 Grove Street Steven C. Sholl:

White Plains, ':ew York 10601 Union of Concerned Scientists Spence W.

Perry 1346 Connecticut Avenue, u.W.

Office of General Counsel Suite 1101 Federal Emergency Washington, D.C.

20036 Management Agency 500 C Street Southwest David Lewis, Esq.

Washington, D.C.

20472 Atomic Safety and Licensing Board Panel Andrew S.

Roffe, Esq.

U.S.

Nuclear Regulatory New York State Assembly Commission Albany, New York 12248 Washington, D.C.

20555 April 1st, 1983 Dated:

New York, New York 0

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