ML20236L920

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Forwards Peaking Factor Limit Rept for Plant Cycle 3 Constant Axial Offset Control Normal Operation.Rept Summarizes W(Z) Functions That Are to Be Used in Proposed Tech Specs 4.2.2.2,4.2.2.3 & 4.2.2.4
ML20236L920
Person / Time
Site: Callaway 
Issue date: 08/05/1987
From: Schnell D
UNION ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
ULNRC-1569, NUDOCS 8708100407
Download: ML20236L920 (8)
v • d • e


Text

1 JEC;Umolv

1tc;aritrc

3031 1901 Gratiot Street, St. Louis Donald F. Schnell Vice President j

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August 5,

1987 k

l U.

S.

Nuclear Regulatory Commission Attn:

Document Control Desk Washington, D.

C.

20555 ULNRC-1569 Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT CYCLE 3 PEAKING FACTOR LIMIT REPORT

Reference:

" Vantage 5 Licensing Amendment Request",

ULNRC-1470, dated March 31, 1987 In accordance with the proposed Callaway Technical Specification 6.9.1.9 (as contained in the referenced submittal), Attachment 1 to thb letter provides the required Cycle 3 Peaking Factor Limit Report.

This report is being submitted now to assure submittal within the required sixty days prior to cycle startup.

The report summarizes the W(z) functions that are to be used in proposed Callaway Technical Specifications 4.2.2.2, 4.2.2.3, and 4.2.2.4 (contained in the referenced submittal) for Fg sur-veillance.

Sincesignificang(marginexistsbetweentheanalytically determined maximum F z)*P rel values and their limit, Restricted g

Axial Flux Difference Operation (RAFDO) is not expected to be required for Cycle 3.

For this reason, values of W(z) for RAFDO operation, defined as W(z)RAFDO, are not supplied for Cycle 3.

The terminology in the Peaking Factor Limit Report is consistent with the proposed Technical Specification changes as given in the referenced submittal letter.

If there are any questions please do not hesitate to contact us.

Very truly your ffjB100407970805 ADOCK 050004s3 p

PDR Donald F.

Schnell DJW/pkm Attachment

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i Maihng Address: P.O Box 149, St. Louis, MO 63166

cc:

Gerald Charnoff, Esq.

Shaw, Pittman, Potts & Trowbridge 2300 N.

Street, N.W.

Washington, D.C.

20037 Dr. J. O. Cermak CFA, Inc.

l 4 Professional Drive (Suite 110)

Gaithersburg, MD 20879 W. L.

Forney Chief, Reactor Project Branch 1 U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Bruce Little Callaway Resident Office U.S. Nuclear Regulatory Commission RR$1 Steedman, Missouri 65077 Tom Alexion (2)

Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 316 7920 Norfolk Avenue Bethesda, MD 20014 Manager, Electric Department Missouri Public Service Commission P.O. Box 360 Jefferson City, MO 65102 1

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Page 1 of 6 PeakirrJ Factor Ilmit Report for Callaway Cycle 3 CM)C Norml Operaticn This Peaking Factor Limit Report is provided in accordance with Section 6.9.1.9 of the Callaway Nuclear Plant Technical Specifications.

1

'Ibe Callaway Cycle 3 elevation dependent W(z) values for CAOC normal operation (NO) near beginning, middle, arxi end of cycle are shown in Figures 1-3, j

res W yely. 'Ihis information is sufficient to determine the height dependent W(z) g values for Cycle 3 burnups in the rarge of 0 MWD /MIU to 18200 MWD /MIU thrcugh the use of three point interpolation. 'Ihese values are provided assuming CACC operation with a +3, -12 percent d I band about the j

target flux difference. Figure 4 includes a W(z)NO function that is bouniing I

for all Cycle 3 burnups. 'Ihe bounding W(z)NO value is conservative to use for any Cycle 3 burnup, however, additional margin can be obtained by usirg the burnup deperrient values.

For Cycle 3, rargin exists between the naximum calculated F (z) *P values g

and the F (z)*P limit. 'Iherefore the Restricted Axial Flux Difference g

Operation (PAFDO) portion of the F surveillance Technical Specification is g

not expected to be used for Cycle 3.

As such, the minimum allowable power level for RAFDO operation, API

, for Callaway Cycle 3 is 100 percent of rated therral power. No values of W(z) are provided for Cycle 3.

1 The W(z) values were calculated using the method described in Part b of Reference 1.

The appropriate W(z) function is used to confirm that the heat flux hot

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channel factor, F (z), will be limited to the Technical Specification values g

of:

j F (z)$ 2.32 (Kfz)i for P >.50 q

l F (z)$ 4.64 (K(z)) for P $.50 q

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'Ibe apprgriate elevation dependent W(z) values, when applied to a power distribution measured under equilibrium conditions, demonstrates that the initial conditions assunal in the IDCA analysis are met, along with the ECCS acceptance criteria of 10CFR50.46.

(1) WCAP-10216-P-A, Relaxation of Constant Axial Offset Control F0 1

i Surveillance Technical Specification, i

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=

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l HEI(MT BOL i

(FEET)

W(Z) e 0.00 1.0000 1.30 e

0.25 1.0000 s 0.50 1.0000

  • 0.75 1.0000 e

1.00 1.0000 e

1.25 1.0000 e

1.50 1.0000 1.75 1.0000 1.25 2.00 1.1922 j

2.25 1.1885 2.50 1.1820 2.75 1.1771 3.00 1.1700 l

l 3.25 1.1855 3.50 1.1622 l

1.20 3.75 1.1588 i

U 4.00 1.1546 l

X 4.25 1.1406 y

4.50 1.1438 x

4.75 1.1373 X

5.00 1.1302 v

i 5.25 1.1224 i

N U

i $$

x 5.50 1.1139

{

X l 5.75 1.1027 l

y X

6.00 1.1011

]

6.25 1.1082 q

Y 6.50 1.1130 i

y y " ^X, 6.75 1.1168 X

7.00 1.1191 3

X 7.25 1.1188 i

ys,

O X

7.50 1.1189 y

7.75 1.1161 ngu 8.00 1.1115 8.25 1.1049 8.50 1.0975 8.75

1. f.i916 9.00 1.0874 1.05 9.25 1.0845 9.50 1.0846 9.75 1.0879 l

10.00 1.0885

  • 10.25 1.0000
  • 10.50 1.0000
  • 10.75 1.0000 1 -XXXXXXXX XXXnXXXX
  • 11.00 1.0000 11.25 1.0000 0

2 4

6 8

10 12 8 11.50 1.0000

  • 11.75 1.0000 B0HOM W
  • 12.00 1.0000 CORE HEIGHT (FEET)

FIGURE 1 Callaway Unit 1 Cycle 3 W(z) at 150 MWD /MTU NO T op a nd B o t t orn 15% E x c l uded a s pe r T ech Spec 4. 2. 2. 2 G

Page 4 of 6 I

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HEIGHT 8EOL (FEET)

W(Zi 0.00 1.0000

  • 0.25 1.0000 1.30 i

0.50 1.0000 J

s 0.75 1.0000 l

1.00 1.0000 1.25 1.0000 1.50 1.0000 1.75 1.0000 2.00 1.1934 1.25 2.25 1.1901 2.50 1.1862 2.75 1.1816 3.00 1.1783 3,25 1.1708 3.50 1.1858 3.75 1.1872

(

1.20 4.00 1.1599 l

y 4.25 1.1560 y

4.50 1.1514 v

4.75 1.1481 X

M 5.00 1.1398 XX-.

5.25 1.1329 I

i 5.50 1.1260 Q

N 5.75 1.1182 1.15 X

'iB 8.00 1.1091 "y

6.25 1.0990 5.50 1.0933 1

x 6.75 1.0866

^

7.00 1.0878 7.25 1.0889

^

7.50 1.0889

^

7.75 1.0881 m

'xH^^^]; ^^ X B.00 1.0870 y'

8.25 1.0881 Xu 8.50 1.0880 8.75 1.0855 9.00 1.0835 9.25 1.0*/54 1.05 g,$o g, o753 9.75 1.0731 10.00 1.0706 e 10.25 1.0000 e 10.50 1.0cco a 10.75 1.0000 e 11,00 1.0000 XXXXXXXX e 11,25 t.00CC 1HEMMXXXXX e 11.50 1.0cco 0

2 4

6 8

to 12 = 11.75

1. 00'.C TOP BOHOM CORE HEIGHT (FEET)

FIGURE 2 Callaway Unit 1 Cycle 3 W(z) at 8000 MWD /MTU NO

Page 5 of 6 l

l HE!QHT EOL (FEET)

W(Z)

= 0.o0 1.00o0 1.30

  • 0.25 1.0000 s 0.50 1.0000 l

e 0.75 1.0000 a

1.00 1.0000 1.25 1.0000 e

1.50 1.0000 l

[

1.75 1.00o0 1.25 2.00 1.2110 2.25 1.2018 2.50 1.1917 2.75 1.1811 i

3.00 1.1880 l

3.25 1.1589 3.50 1.1574 v

3.75 1.1556 1'20 4.00 1.1533 y

4.25 1.1503 v

4.50 1.1466 l

4.75 1.1422 5.00 1.1366 r,

5.25 1.1302 Q

^X EX 5.50 1.1283 l

Xn X

v y

m 1.15 x

5.75 1.1356 l

3 6.00 1.1446 l

k, X X

6.25 1.1506 "A

x 6.50 1.1551 6.75 1.1575 X

7.00 1.1577 d'

7.25 1.1558 1.10 7.50 1.1516 v

7.75 1.1450 J

8.00 1.1361 y

8.25 1.1254 8.50 1.1132 8.75 1.1008 9.00 1.0883 9.25 1.0837 1*05 9.50 1.0920 9.75 1.1011 10.00 1.1091 e 10.25 1.0000 a 10.50 1.0000 s 10.75 1.0000

= 11.00 1.0000 1 --)LXXX;CM XXXT 7:

  • 11.25 1.0000
  • 11.50 1.0000 0

2 4

6 8

to 12 w

3,oooo CORE HEIGHT (FEET)

FIGURE 3 Callaway Unit 1 Cycle 3 W(z) at 18200 MWD /MTU NO

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l l

1 l

l HEIcerr NAX (FEET)

W(Z)

=

0.00 1.0oo0 l

  • 0.25 1.0000 j

1.30 e

0.50 1.0000 l

  • 0.75 1.0000 I

1.00 1.0000 1.25 1.0000 e

1.50 1.0000 1.75 1.0000 2.00 1.2111 l

1.25 2.25 1.2018 2.50 1.1917 l

2.75 1.1842 1

3.00 1.1791 3.25 1.1742 l

3.50 1.1698 3.75 1.1659 v

1.20 -

4.00 1.1619 Y

4.25 1.1576 X

4.60 1.1530 4.75 1.1482 d-x 5.00 1.1434 5.25 1.1374 Q

K xXJ4 5.50 1.1295 y

5.75 1.1356 1.15 -

x 3c X

N X

6.00 1.1448 i

X X X

6.25 1.1506 i

l X

5.50 1.1551 i

X j

S.75 1.1575 7.00 1.1577

}

i y

l n

7.25 1.1558 i

v v

7.50 1.1516 1

,,3e 7.75 1.1450 l

y 8.00 1.1361 g

8.25 1.1254 i

8.50 1.1132 6.75 1.1008

{

9.00 1.08S2 9.25 1.0854 l

1.05 9.50 1.0920 9.75 1.1011 i

10.00 1.1001

  • 10.25 1.0000 e 10,50 1,oooo
  • 10.75 1.0000
  • 11.00 1.0000 l

1 JXXXXXXX XXWEXXX)

  • 11.25 1.0000 e 11.50 1.0000 O

2 4

6 8

10 12

  • 11.75 1.0000 TOP BOTTOM CORE HEIGHT (FEET)

FIGURE 4 Callaway Unit 1 Cycle 3 Bounding W(z) for Cycle 3 NO Top and Bottorn 15% Excluoed as per 7ech Spec 4.2.2.2G e

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