ML20054K361
| ML20054K361 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 06/21/1982 |
| From: | Novak T Office of Nuclear Reactor Regulation |
| To: | Vandenburgh D YANKEE ATOMIC ELECTRIC CO. |
| References | |
| NUDOCS 8207010471 | |
| Download: ML20054K361 (2) | |
Text
a 4
e DISTRIBUTION:
b I
JUN 21 1982 A cket File NRC PDR L PDR B
Docket No. 50-309 E e t
J. Heltemes, AE0D PM Kreutzer-3 Mr.D.E.Vandenburgh,SeniorVicePresident.k Yankee Atomic Electric Company OELD 1671 Worcester Road Framingham, Massachusetts 01701 C
Dear Mr. Vandenburgh:
fR
Subject:
YAEC DNBR Limit Methodology and Applic N n to the Maine Yankee Plant By letter dated April 8, 1982, you submitted topical report YAEC-1296P, "DNCR Limit Methodology and Application to the Maine Yankee Plant", for itRC staff review. The letter also indicated your intention to apply this methodology to Maine Yankee Cycle 7 operation which is scheduled to commence in November 1982.
The YAEC-1296P Topical describes the development of a new critical heat flux correlation, YAEC-1, and a minimum DNBR limit which ensures that a fuel rod will not experience DNB, with 95% probability at a 95% confidence level. Our preliminary review of the topical revealed that more informa-tion was needed to complete this review. This matter was discussed with Mr. J. Handschuh of your staff on May 19, 1982. As a result, additional information was provided by letter dated June 1, 1982. Also during that discussion we noted the " tightness" of the review schedule and the possi-bility that we would identify the need for additional information during our in-depth review. Your staff indicated that the reload analysis for Cycle 7 is being performed using both the new and previously approved thermal-hydraulic analysis methodologies.
We are planning to complete our review of the new methodology by November 1982. However, if that review has not been completed by Cycle 7 startup or if the critical heat f. lux correlation is not approved, the analysis using previously approved methods should be available as a basis for Cycle 7 operation.
Sincerely, Original signed by:
Thocias M. Novak Thomas M. Novak, Assistant Director for 8207010471 820621 PDR ADOCK 05000309 Operating Reactors P
PDR Division of Licensing
\\ d (d' ec. p omq m-
A D
suamc >.eduutzer..
Ct!f,..,o,,nfep,, RACl ar,k,,,,,,,
K,
.. 6B.LL8.2.....
. 6lAlB2..
.. 6lly/BR...
.6
../.a2....
amy unc ronu m o&80) NRCM 0ao OFFICIAL RECORD COPY usa m e - m.m
Maine Yankee Atomic Power Company l
j cc:
E. W. Thurlow, President Judith M. Barrows, President l
Maine Yankee Atonic Power Company SAFE POWER FOR MAINE Edison Drive Post Office Box 2204 Augusta, Maine 04336 Augusta, Maine 04330 1
Mr. Donald E. Vandenburgh First Selectman of Wiscasset Vice President - Engineering Municipal Building Yankee Atomic Electric Company V. S. Route 1 20 Turnpike Road Wiscasset, Maine 04578 Westboro, Massachusetts 01581 j
1 John A. Ritsher, Esquire Atomic Safety and Licensing Board Ropes & Gray U.S. Nuclear Regulatory Commission i
225 Franklin Street Washington, D. C.
20555 Boston, Massachusetts 02110 David Santee Miller, Esq.
Mr. Rufus E. Brown 213 Morgan Street, N. W.
Deputy Attorney General Washington, D. C.
20001 State of Maine l
Augusta, Maine 04330 Mr. Paul Swetland Resident Inspector / Maine Yankee Mr. Nicholas Barth c/o U.S.N.R.C.
Executive Director P. O. Box E Sheepscot Valley Conservation Wiscasset, Maine 04578 Association, Inc.
P. O. Box 125 Mr. Charles B. Brinkman Alan, Maine 04535 Manager - Washington Nuclear Operations Combustion Engineering Inc.
Wiscasset Public Library Association 4853 Cordell Avenue, Suite A-1 High Street Bethesda, Maryland 20014 Wiscasset, Maine 04578 Mr. Robert H. Groce Mr. Torbet H. Macdonald, Jr.
Senior Engineer - Licensing Office of Energy Resources Maine Yankee Atomic Power Company State House Station #53 1671 Worcester Road Augusta, Maine 04333 Framingham, Massachusetts 01701 Robert M. Lazo, Esq., Chairman Atomic Safety and Licensing Board U.S. Environmental Protection Agency U.S. Nuclear Regulatory Commission Region I Office Washington, D. C.
20555 ATTN:
Regional Radiation Representative JFK Federal Building Dr. Cadet H. Hand, Jr., Director Boston, Massachusetts 02203 Bodega Marine Laboratory University of California Bodega Bay, California 94923 cc w/ enclosure (s) and incoming dated:
Mr. E. C. Wood, Plant Manager Maine Yankee Atomic Power Company State Planning Officer P. O. Box 3270 Executive Department Wiscasset, Maine 04578 189 State Street Augusta, Maine 04330 Regional Administrator Nuclear Regulatory Commission, Region I Office of Executive Director for Operations 631 Park Avenue King of Prussia, Pennsylvania 19406 i
--