ML20100P926

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Forwards Rev 6 to Sections 2.4.1,2.5 & Figure 7 of Core Operating Limits Rept.Revised Axial Flux Difference Target Bands Applicable Through End of Cycle 5
ML20100P926
Person / Time
Site: Callaway 
Issue date: 01/29/1992
From: Schnell D
UNION ELECTRIC CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ULNRC-2551, NUDOCS 9202030266
Download: ML20100P926 (7)
v • d • e


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Eu(. INION

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'i3 January 29, 1 92 U.S. Nucleas Regulatory Commission Attn: Documes'.c Control Desk Mail Station F1-137 Washington, D.C.

20555 ULNRC-2 551 Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT - CYCLE 5 CORE OPERATING LIMITS REPORT

References:

1) ULNRC-2323 dated November 3 4, 1990
2) ULNRC-2360 dated January 31, 1991
3) ULNRC-2379 dated March 19, 1991
4) ULNRC-2513 dated November 13, 1991
5) ULNRC-2532 dated December 12, 1991 j

Reference 1 transmitted the Callaway Plant Cycle 5 Core Operating Limits Report (COLR).

Attached please find Revision 6 to Sections 2.4.1, 2.5 and Figure 7 of the COLR.

Revision 6-modifies the Axial Flux Difference (AFD) target band and corresponding W(Z) values to +12%, -7% for Normal Operation.

The revised AFD target bands are applicable through the end of Cycle 5.

Should you have any questions concerning this information, please contact us.

Very truly yours, f) lf,J

,- t -. ' f2ff g Art- '< ~

Donald F.

Schnell WEK/ dis Attachment T

?j 9202030266 92C129 i

PDR ADOCK 05000483 g (

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T. A.. Baxt er, Isq.

Shaw, -- Pittman, Potts & Trowbridge 2300 N.-Street, N.W.

Washinoton, D.C. 20037 Dr. J. O. Cermak CFA, Inc.

18225-A~ Flower Hill Way.

Gaithersburg, MD 20879-5334 R.

C.

Knop.

Chief, Reactor Project Branch 1 U.S. Nuclear Regulatory Commission Region III 1

799 Roosevelt Road J

Glen Ellyn, Illinois 60137 Bruce Bartlett Callaway Resident Office U.S. Nuclear Regulatory Commission RR#1 Steedman, Missouri 65077 L. R. Wharton (2)

Office of' Nuclear Reactor Regulation U.S. Nuclear: Regulatory Commission 1 White Flint,. North, Mail Stop 13E21 11555 Rockville Pike Rockville, MD 20852 Manager,fElectric Department Missouri Public Service Commission P.O.-Box 360 Jefferson City, MO 65102

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bc'c:-D.-Shafer/A160.761

/QA Record (CA-758)

Nuclear Date E210.01-

.DFS/ Chrono D..F.

Schnell J. E..B12:k J. V.

Laux M.- A. Stiller-G.

L. Randolph

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Irwin P.

Barrett C. D. Naslund.

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Passwater D.

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W.-E.

Kahl(4 S. Wideman (WCNOC)

R. C. Slovic (Bechtel)

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r JAN 26 '92 17:06' FROM COM HUCLEAR FUEL D!V PAGE.003 Westinghouse Proprietary Cass 3 -

f catim, cwe 5 g,yy 1.4 - - Arial hr Difference (Specification 3.2.1) _

2.4.1 The Axial Rux Difference (AFD) taryct bands are,

+l'LT a._

48%, 7% for Normal Operation b.

3% for Restricted AFD Operation 2A.2 The Acceptable Operation Lindts are shown in Figure 3.

2A.3 The minimum allowable power level for Restricted AFD Operation. APLN, is 90% of RATED THERMAL POWER.

x l

1 Page 7 of 15 i

~ - - - - --

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.)AN.EG '92 17:07 FROM COM NUCLEAR FUEL DIV PAGE.005 Callaway Cycle 5 Rev. /

2.5 ' Hant' El'ur Hot channel Factgr - F (Z)

^

(specification 3.2.2) 9 RTP Y

F (2) 5 E---

g K(Z) for P > 0.5 P

RTP T

T (Z) $ A--

  • K(Z) for P $ 0.5 g

o.s THERMAL POWER where P = ----------

RATED THERFAL POWER RTP 2.5.1 F

= 2.50 0

2.5.2 K(c) is providad in Figure 4.

2.5.3 The W(z) functions that are to be used in Technical Specifications 4.2.2.2, 4.2.2.3, and 4.2.2.4 for FQ surveillance are shown in.^1gures 5 through 8.

Becauno significant nargin exists between the analyt1cally deterr.ined max 1:=na P0(z)*Prel values and their lisait, Restricted Arial Flux Difference (RAFDO) operation is not expected to be required for Cycle 5. Por this reason, no W(2) values are supplied for Cycic 5.

RAFDO The Norral Ope. ration W(z) values, W(z) were orig hn11y N3 determined fer three specific burnupc in Cycle 5, accu =ing Cycle 5 operates with the CAOC strategy and unce a +3%,

-12% dalta-I band about the target flux dif ference. This permita determination of W(z) at any cycle burnup through the use of three point interpolation. The end of cycle W( ) value has been revised based on Ch0C operation with a +12.

  • 1% deltn I band about the target flux difference.

Une of this M(L) value for Cycle 5 burnups from 16000 MND/MTU until end of cycle is conservative. Interpolation with the +3%,-12% W(:) values from esalier burnups should not be perf omed. Also included is a W(z) function that bounds NO the W(=)

curyca based on a +3%,-12% delta-I band for NO all Cycle 5 burnupo. Thie in not appropriate to une t -

for delta-I handa other than +M,-12% about the target flux l

difference.

Page 3 of 15 l

l l

,JAN 2B '92 17 06 FROM COM NUCLEAR FUEL DIV PAGE.004 Rev. 6 INCORE Height W(Z)

INCORE Height W(Z)

- Point-(Feet)~

16000.

Point (Feat) 16000.

Top _

1.

0.00000

  • 1.0000 37.

6.0000 1.1974 2.

0.16700

  • 1.0000 38.

6.1670 1.2033 3.

0.33300

  • 1.0000 39.

6.3330 1.2076 4.

0.50000

  • 1.0000 40.

6.5000 1.2104 5.

0.66700

  • 1.0000 41.

6.6670 1.2116 6.

0.83300

  • 1.0000 42.

6.8330 1.2112 7.

1.0000

  • 1.0000 43.

7.0000 1.2089 8.

1.1670

  • 1.0000 44.

7.1670 1.2056 9.

1.3330

  • 1.0000 45, 7.3330 1.2032 10.

1.5000

  • 1.0000 46, 7.5000 1.2030 11.

1.6670

  • 1.0000 47, 7.6670 1.2045 12.

1.8330 1.1629 48.

7.8330

.2057 13.

2.0000 1.158E 49.

8.0000 1.2055 14.

2.1670 1.1536 50.

8.1670 1.2047 15, 2.3330 1.1483 51 8.3330 1.2044 16.

2.5000 1.1426 52.

8.5000 1.2037 17.

2.6670 1.1365 53.

8.6670 1.2016 18, 2.8330 1.1300 54.

8.8330 1.1982 19, 3.0000 1.1228 55, 9.0000 1.1958 20.

3.1670 1.1162 56.

9.1670 1.1953 21, 3.3330 1.1125 57, 9.3330 1.1964-

-22, 3.5000 1.1149 58.

9.5000 1.1977 23.

3.6670 1.1205 59.

9.6670 1.1999 24, 3.8330 1.1250 60.

9.8330 1.1995 25.

4.0000 1.1300 61, 10.000 1.1998 26, 4.1670 1.1360 62.

10.167 1.2007 27, 4.3330 1.1421 63.

10.333

  • 1.0000 28.

4.5000 1.1476 64, 10.500

  • 1.0000 29, 4.6670 1.1523 65.

'O.667

  • 1.0000 30.

4.8330 1.1562 66.

.0.833

  • 1.0000 31.

5.0000 1.1597 67, 11.000

  • 1.0000-32.

5.1670 1.1622-68.

11.167

  • 1.0000 33.

5.3330 1.1646 69.

11.333

  • 1.0000 34.

5.5000 1.1715 70.

11.500

  • 1.0000 35, 5.6670 1.1813 71, 11.667
  • 1.0000 36.

5.8330 1.1900 72.

11.833

  • 1.0000 73.

12.000

  • 1.0000 Figure 7 Callaway Unit 1 Cycle 5 W( )

at 16000 MWD /MTU NO Applicable for Delta-I bands of +121,-7t For burnups from 16000 MWD /MTU until end of cycle

,:;, tj EE 'u

. tic 7 rnon Con tssCLE M FLEL Liv HGE.006 lo callaway cycle 5 Rev. /

-- _ _1Z...,.. 4 a,.-y< _. _ %:, C, _ 2.. y y g x.

._s u

The W(z) isuming the core height boundaries of-values are provided for 73 axial points as 0 and 12 feet and intervals of.167 feet between the core boundaries.

2.6 Nuclear Enthalov Rise Met Channel Factor -

F (Specification 3.2.3)

N T N,p RTP gy,p7g(y,p))

g g

where:

THERMAL POWER y....................

RATED THERF.AL POWER I

2.6.1 F

- 1.59 g

2.6.2 PTg = 0.3 2.7 Refuelina Boron __ concentration (Specification 3.9.1) 2.7.1 The refueling boron concentration to maintain k,ff 5 0.95 shall be 1 2000 ppm.

1 Page 15 of 15

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