ML19345G475
| ML19345G475 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/31/1981 |
| From: | Martin R Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8104070329 | |
| Download: ML19345G475 (5) | |
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'o UNITED STATES
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NUCLEAR REGULATORY COMMISSION ey a K WASHINGTON, D. C. 20555 e
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March 31, 1981 f( s
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-Docket No. 50-368 wff
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y LICENSEE: Arkansas Power & Light Company
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FACILITY: Arkansas Nuclear One-Unit 2 (ANO-2) 4 re
SUBJECT:
SUMMARY
OF MEETING ON ANO-2 CYCLE 2 RELOAD REPORT On March 26', 1981 members of the staff met with the licensee and representatives of Combustion Engineering, Inc., in Bethesda, Maryland to discuss technical issues requiring resolution to support the operation of ANO-2 during Cycle 2.
The attendees are listed on the enclosure.
The licensee has made the following submittah related to the reload review (1) The Cycle 2 Reload Report submitted in two parts dated February 20, 1981 and March 5,1981 (2) CEN-143 "CPC/CEAC Software Modifications for ANO-2" submitted January 9,1981 and (3) CEN-139
" Statistical Combination of Uncertainties" submitted December 1,1980.
The principal purpose of this meeting was to address those areas of the submittals listed above related to the new methodolo lating the departure from nucleate boiling ratio (DNBR) gy for calcu-in the plant protection system's Core Protection Calculator System '(CPCS)', ANO-2.
Cycle 1 operation, scheduled to end about March 28, 1981, utilized COSM0/W-3 based DNBR correlation whereas Cycle 2 operation proposes to rely on the TORC /CE-1 correlation. The Reload Report for proposed Cycle 2 operation also includes the effects of statistically combining the uncertainties (SCU) on system parameters and the effects of a less l
conservative rod bow DNBR penalty.
The staff discussed various concerns regarding the implementation of the TORC /CE-1 correlation in the Cycle 2 transient analyses and CPCS software with AP& L Co., and CE. Agreement was achieved that AP&L Co.,
and CE understood the staff's concerns and would promptly begin preparing responses to them.
The staff state that the soncerns would be sent to AP&L Co., by letter and AP&L Co./CE indicated they would respond to the concerns by April 10, 1981.
i 81040703A
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. Resolution was not reached in this meeting regarding the use of SCU in the
-eload analyses and CPCS software. The staff's position was that SCU effects sh:uld be nulled out of the CPCS since it is an unapproved methodology and is
- nlikely to receive approval prior to Cycle 2 restart. The licensee could c; agree to the staff's position due in part to difficulties in implementing
-he deletion of SCU effects within the time available before restart.
- esolution wcs reached regarding the rod bow penalty. The staff's position was that the penalty currently specified in the Technical Specifications for ANO-2 would continue to be in effect until AP&L Co./CE justified the
- se of other penalty values. The review of this justification is currently
.nderway with expected completion date of September 1981. AP&L Co./CE Icknowledged this staff position and indicated they would meet it.
]ther topics of discussion included the information the staff seeks e".ative to the operation of the CPCS/ Plant Computer data links during
- ycle 2 operation, arrangements for the staffs software consultant to audit the ANO-2 CPCS files in Windsor, Connecticut and discussions of information needed to evaluate the non-CPCS issues in the proposed
- ycle 2 Technical Specifications and Safety Analyses.
The staff indicated that the discussions held in this meeting of March 26, 1981 did not reflect a complete review of the Cycle 2 reload inform-ition package and that further efforts would be necessary by the staff ind the licensee to support restart of the plant by early June.
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lRobertE. Martin,ProjectManage Operating Reactors Branch #3 Division of Licensing in:lesure: As stated
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Arkansas Power & Light Company cci Mr. David C. Trimble Director Criteria and Standards Division Manager, Licensing Office of Radiation Programs (ANR-460)
Arkansas Power & Light Company U.S. Environmental Protection Agency -
P. O. Box 551 Washington, D. C.
20460 Little Rock, Arkansas 72203 U.S. Environmental Protection Agency Mr. James P. O'Hanlon Region VI Office General Manager.
ATTN: EIS COORDINATOR Arkansas Nuclear One 1201 Elm Street P. O. Box 608 First International Building Russellville, Arkansas 72801 Dallas, Texas 75270 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power. Generation Division Suite 420 7735 Old Georgetown Road Director, Bureau of Environmental Sethesda, Maryland 20014 Health Services 4815 West Markham Street Nick Reynolds Little Rock, Arkansas 72201 c/o DeBevoise & Liberman 1200 Seventeentn Street, N.W.
Washington, D. C.
20036 Arkansas Polytechnic College Russellville, Arkansas 72801 i
Honorable Ermil Grant Acting County Judge of Pope County
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, Pope County Courthouse Russellville, Arkansas 72801 Mr. Paul F. Levy, Director Arkansas Department of Energy 3000 Kavanaugh Little Rock, Arkansas 72205 l
l Mr. Charles B. Brinkman Manager - Washington. Nuclear l
3perations
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C-E Power Systers l
4853 Cordell Avenue, Suite A-1 l
Bethesda, Maryland 20014 L
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s MEETING
SUMMARY
DISTRIBUTION L':ensee: Arkansas Power and Light ~ Company
- :ies also sent to those people on service (cc) list for subject plant (s).
D:cket File f5~ ?DR L ?CR fCIC T9.A 0:3i3 Rdg J~lsninski J-eltemes, AE00
~Bir1:1es R* lark P ofect Manager L':ensing Assistant A*'.S (10) ft; Summary Dist, ff; ?articipants h
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LIST OF ATTENDEES March 26, 1981 NAME ORGANIZATION / FUNCTION R. Martin NRC/PM/ANO-2 J. C. Ennaco C-E R. A. Clark NRC/ Chief,ORBf3 Don Kirkpatrick NRC/IE Harry Balukjian NRC/CPB T-H Y. H. Hsii ARC /OSI/CPB S. C. Gupta NRC/DSI/CPB Lambros Lois NRC/OSI/CPB Larry Phillips NRC/OSI/CPB T. J. Rozek C-E David-S. Berto C-E R. B. (Bob) Lang MSS /APOL Dick Darling C-E Michael A. Book C-E
-John Lobre C-E Carl Coppersmith C-E Dave Trimble AP&L Tony Mansell AP&L Tom Cogburn AP&L - AN0 Plant Analysis e
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