ML20137Z491

Forwards Safety Evaluation Re TR TR-092 Entitled, TMI-1 Reload Design & Setpoint Methodology

ML20137Z491
Person / Time
Site:	Three Mile Island
Issue date:	04/22/1997
From:	Buckley B NRC (Affiliation Not Assigned)
To:	Langenbach J GENERAL PUBLIC UTILITIES CORP.
Shared Package
ML20137Z496	List: ML20137Z491 ML20137Z507
References
TAC-M94908, NUDOCS 9704240207
Download: ML20137Z491 (3)

Text

.. -. . . . - . - . . . - - . . - . .. - . - - . - . - - . . . - .- - -. . _ . -

, p ea 449 4

j. .g k UNITED STATES l# .c g j NUCLEAR REGULATORY COMMISSION o A WASHINGTON, D.C. 30666 0001

g" g% + April 22, 1997 i

Mr. James W. Langenbach '

Vice President and Director, TMI

, GPU Nuclear Corporation P.O. Box 480 1 Middletown, PA 17057 i

i 4

SUBJECT:

REVIEW OF TOPICAL REPORT TR-092 ENTITLED "TMI-1 RELOAD DESIG SETPOINT METHODOLOGY" FOR THE THREE MILE ISLAND NUCLEAR POWER STATION, UNIT NO. 1 (TAC NO. M94908)

Dear Mr. Langenbach:

Please disregard, in total, our March 27, 1997, letter regarding the above i-subject material in which we referred to two incorrect dates. That letter is ,

superseded by this correspondence. We regret any inconvenience this may have i -caused. l

} By letter dated February 27, 1996, as supplemented October 28, 1996, GPU Muclear Corporation submitted Topical Report TR-092 for staff review and j approval. Topical Report TR-092 describes the GPU Nuclear reload design methodology applied to nuclear, thermal-hydraulic and safety analyses. It l

also presents setpoint methodology including safety and acceptance criteria to determine various safety limits, reactor trip setpoints and alarm limits for l future THI-1 fuel cycles.

l The staff has completed its review, as described in'the enclosed Safety Evaluation, and finds the GPU Nuclear methodology as delineated in the above

submittals acceptable with the limitation that

1 This approval is based on the current licensing basis of THI-1; any change to the current licensing basis requires that this methodology be reevaluated for applicability;  !

This approval is based on the use of the codes (CASH 0, RETRAN, and l

1 VIPRE) subject to the limitations stated in the staff safety i i

evaluations, and in the manner described in TR-092; any use beyond these descriptions requires reevaluation for applicability.

i Future references to the staff acceptance of this Topical Report must cite

this letter and limitations stated therein.

i 24001.8  !

Dfoi \

NRC FR.E CENTER COPY 4 9704240207 970422 \

l PDR ADOCK0500g29 P

i.

i

Mr. James W. Langenbach I This completes our review of this_ issue, and we are, therefore, closing out-

] TAC No..M94908.

Sincerely, 1

Original signed by 1

Bart C. Buckley, Senior Project Manager

, Project Directorate I-3 4

Division of Reactor Projects - I/II i Office of Nuclear Reactor Regulation I

Docket No. 50-289

{

Enclosure:

As stated I

cc w/ enc 1: See next page 4

4 Distribution Docket File I 'PUBLIC

! PDI-3 RF SVarga t

PMilano i B8uckley EDunnington OGC i ACRS l PEselgroth, RI DOCUMENT NAME: G:

4- T. w.. n.em.m \BUCKLEY\.M94908.LTR

.w m . wm c con ww.m .n w.na. r - con on .n w.new. r - wo con 0FFICE PM:PDI-3 [7/6 ET LA:PDII-1 _E (A)D: POI-3 l SRXB* l l J

NAME BBuckley ULD EDunningtoff0 PMilSho ~ JLyons i DATE 04/31/97 04/11/97 0442 /97 03/27/97 3

0FFICIAL RECORD COPY l

1 i

i i

4 t

1

~

~ Three Mile Island Nuclear Station, Unit No. 1 I cc

1

' Michael Ross Director, O&M, TMI Robert B. Borsum GPU Nuclear Corporation B&W Nuclear Technologies i P.O. Box 480 Suite 525 Middletown, PA 17057~ 1700 Rockville Pike l Rockville, MD 20852

! John C. Fornicola Director, Planning and William Dornsife, Acting Director i

Regulatory Affairs Bureau of Radiation Protection i GPU Nuclear Corporation Pennsylvania Department of 100 Interpace Parkway Environmental Resources

'Parsippany, NJ 07054 P.O. Box 2063

} Harrisburg, PA 17120 1 Jack S. Wetmore i Manager, TMI Regulatory Affairs Dr. Judith Johnsrud  !

! GPU Nuclear Corporation National Energy Committee  !

P.O. Box 480 Sierra Club '

' 433 Orlando Avenue Middletown, PA 17057  !

' State College, PA 16803 i

i Ernest L. Blake, Jr., Esquire i

Shaw, Pittman, Potts & Trowbridge 2300 N Street, NW.

} Washington, DC 20037  ;

i Chairman j Board of County Commissioners of Dauphin County

Dauphin County Courthouse i Harrisburg, PA 17120

] Chairman

, Board of Supervisors 1

of Londonderry Township R.D. #1, Geyers Church Road l Middletown, PA 17057 l Michele G. Evans

! Senior Resident Inspector (TMI-1)

U.S. Nuclear Regulatory Commission

. P.O. Box 311 j Middletown, PA 17057 I Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of. Prussia, PA 19406 l' l

l

,