ML20050B592
| ML20050B592 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 04/02/1982 |
| From: | Zimmerman S CAROLINA POWER & LIGHT CO. |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8204060100 | |
| Download: ML20050B592 (7) | |
Text
-
GP&L Carolina Power & Light Company l
tr>
April 2, 1982 4
3 RECURO 'ch 2
T-1 APRos I%$y:
1
- 3m=
Office of Nuclear Reactor Regulation s
ATTN:
Mr. D. B. Vassallo, Chief g
Operating Reactors Branch No. 2 United States Nuclear Regulatory Commission Washington, D.C.
20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-324 LICENSE NO. DPR-62 EXTENSION OF PLANAR AVERAGE EXPOSURE FOR 7x7 FUEL BUNDLES
Dear Mr. Vassallo:
On March 15, 1982, computer surveillance indicated that several nodal exposures on 7x7 types 2 and 3 fuel bundles were approaching the 30,000 mwd /t end point identified in the Brunswick Unit No. 2 Technical Specification 3.2.1, Figures 3 2.1-1 and 3 2.1-2.
As a result, the computer was re-programmed in accordance with General Electric NEDO-24053, Revision 1, dated October 1980 for Brunswick Unit No. 2, cycle 4.
A copy of this document is attached, and it provides data to extend the average planar exposure end point from 30,000 mwd /t to 40,000 mwd /t.
At no time were the limits of the Technical Specifications or the NEDO document exceeded.
All of the affected 7x7 fuel bundles are scheduled to be removed from the core during the upcoming refueling outage scheduled to comtence on April 24, 1982. Based on the analysis performed for the NEDO document, the minimal exposure remaining in the affected 7x7 fuel bundles, and the short time period until shutdown for refueling, the health and safety of the public is not compromised. In addition, Carolina Power & Light Company (CP&L) will continue to maintain the affected fuel bundles within the limits specified by the NEDO document until the unit is shut down for :efueling.
Since this is not a safety concern and there is only a short time remaining until unit shutdown when the bundles will be discharged, CP&L does not plan to request revisions to Technical Specifications.
8204060100 820402 PDR ADOCK 05000324 p
PDR g
00 411 Fayetteulle Street
- P. O. Ocx 1551
- Rateigh. N. C, 27602 l
gwpv.
n-
=a,
--n-~m
r Mr. Vassallo April 2, 1982 Please advise us should you have any questions regarding this information.
Yours very truly, ifHthw erman ger Li en81ng & Permits JAM /1r (n-18)
Attachment 00:
Mr. J. P. O'Reilly (NRC-RII)
I
Y c/
NUCLE An ENE AGY SUSINESS Gr.OUP e GENEM AL E LECTRIC COMP ANY SAN JOSE, CALIFORNI A 95125 GEN ER AL $ ELECTRIC APPLICABLE TO:
NEDO-24053 PUBUCATION NO ERRATA And ADDENDA T. i. E. NO.
SHEET TITLE I,OSS-OF-COOLANT ACCIDENT 1
ANALYSIS REpnRT FOR BRUNSWTCK October 1980 DATE STEAM ELECTRIC PLANT UNIT NO. 2 NOTE: Correct allcopies of the applicable Seoterber 1977 publication as specifled below.
ISSUE oATE MEFERENCES INSTRUCTIONS ITEM
,js E,C TIO,N. AGE, (COR RECTIONS AND ADDITIONS) p p
gg 01 Pages 4-7 thru 4-10 Replace with new pages 4-7 through 4-10.
i l
l l
l Of l PAGE
.. Q-NEDO-24053 s'
Table 4A MAPLHGR VERSUS AVERAGE PLANAR EXPOSURE Plant: Brunswick 2 Fuel Type:
Initial Core - Type 2*
Average Planar Exposure MAPLHGR PCT 0xidation (mwd /t)
(kW/ft)
('F)
Fraction
~ 50~~
~ l'4.6 2198
~0.032 2
1000 14.7 2197 0.031 5000 15.0 2200 0.030 10000 14.7 2199 0.030 15000 14.2 2198 0.057 20000 13.8 2194 0.083 25000 13.8 2196 O.084 30000 13.3 2067 0.020 35000 12.1 1976 0.013
~
40000 10.9 1794 0.007
- FSAR designation (Reload Submittal and Technical Specification designation is Type 3) 4-7
- ?
.,.j, Table 4B MAPLHGR VERSUS AVERAGE PLANAR EXPOSURE Plant: -Brunswick 2 -
Fuel Type:
Initial Core - Tvpe 3
- I pt.
1 Average Planar Exposure
" ~ ~ ~ - ~
0xidation (Mvd/c)
(kW/ft)
'~T*F) 200
-~ ~~~ ~'14 6 2198 O.034 0.034
~ 1000 14.8 2196 5000
__,f4.9 2200 _
..._0. 03 0...
10000
. 1.4. 6
.2198 0.030.
15000 14.1 2193 0.056
-- 13. 8 -
---2194 - - - - - - - -
0.083 20000 25000 13.8 2194 0.083 30000
~
13.3'
'2067 0.020 35000 12.1 1953 0.013 40000 10.9 1791 0.007 b
- FSAR designation (Reload Submittal and Technical Specification
~
designation is Type 1)
-- w amin e 4-8
.,e-NED0-24053 Table 4C MAPLEGR VERSUS AVERAGE PLANAR EXPOSURE Plant: Brunswick 2
, Fuel Type:, 7D230 Average Planar Exposure MAPLHGR PCT 0xidation (Mwd /t)
(kW/ft)
(*F)
Fraction 200 14.9 2198 0.031 1000 15.0 2197 0.031 5000 15.1 2197 0.030 10000 14.6 2195 0.030 15000 14.1 2199 0.073 20000 13.8 2198 0.073 25000 13.7 2199 0.072 30000 13.8 2197 0.071 35000 12.8 2082 0.049 l
40000 11.5 1898 0.024 9
i 4-9 t
NEDo-24053 Table 4D MAPLHGR VERSUS AVERAGE PLANAR EXPOSURE Plant:
Brunswick 2
"" Fuel Type:
8D274L Average Planar Exposure MAPLHGR PCT 0xidation (Mvd/t)
(kW/ft)__
(*F)
Fraction 200 11.2 2064 0.020 1000 11.3 2069 0.020 5000 11.9 2144 0.026 10000 12.1 2148 0.025 15000 12.2 2178 0.028 20000 12.1 2185 0.029 25000 11.6 2136 0.025 30000 10.9 2046 0.019 l
I
{
[
i l
4-10 l -, -
t
--