ML17328A750

Rev 0 to Unit 2 Core Operating Limits Rept

ML17328A750
Person / Time
Site:	Cook
Issue date:	09/04/1990
From:	INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17328A748	List: ML17328A747 ML17328A749 ML17328A750
References
NUDOCS 9011010323
Download: ML17328A750 (16)

Text

UNIT 2 CORE OPERATING LIMITS REPORT 90ii010323 90i029 PDR ADOCK 050003' P

PNU

DONALD C

~

COOK NUCLEAR PLANT UNIT 2 CYCLE 8 CORE OPERATING LIMITS REPORT (COLR)

Revision 0

SEPTEMBER 4, 1990

COLR for DONALD C

~

COOK NUCLEAR PLANT UNIT 2 CYCLE 8 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report for Donald C.

Cook Nuclear Plant Unit 2 Cycle 8 has been prepared in accordance

~ith the requirements of Technical Specification 6.9.1.11.

The Technical Specifications affected by this report are listed below:

3/4.1.1.4 3/4.1.3.1 3/4.1.3.4 3/4.1.3.5 3/4.1.3.6 3/4.2.1 3/4.2.2 3/4.2.3 3/4.2.6 Moderator Temperature Coefficient Movable Control Assemblies Group Height Rod Drop Time Shutdown Rod Insertion Limit Control Rod Insertion Limits Axial Flux Difference

.Heat Flux Hot Channel Factor Nuclear Enthalpy Hot Channel Factor Allowable Power Level Page 1 of 12

COLR for DONALD C.

COOK NUCLEAR PLANT UNIT 2 CYCLE 8 2.0 OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in Section 1.0 are presented in the following subsections.

These limits have been developed using the NRC-approved methodologies specified in Technical Specification 6.9.1.11.2.

2.1 Moderator Tem erature Coefficient (Specification 3/4.1.1.4) 2.1.1 The Aoderator Temperature Coefficient NTC Limits are:

The BOL/ARO-MTC shall be less positive than the value given in Figure 1.

The EOL/ARO/RTP-MTC shall be less negative than

-3.80E-4 Sk/k/ F.

This limit is basded on a T

program with HFP vessel T

of 574 F

avg avg where:

ARO stands for All Rods Out BOL stands for Beginning of Cycle Life EOL stands for End of Cycle Life RTP stands for Rated Thermal Po~er HFP stands for Hot Full Thermal Power 2.1.2 The MTC Surveillance limit is:

The 300 ppm/ARO/RTP-MTC should be less negative than or equal to -3.10E-4 hk/k/ F at a HFP vessel average temperature of 574 F.

Page 2 of 12

COLR for Donald CD Cook Nuclear Plant Unit 2 Cycle 8

2.2 Rod Dro Time Dro Hei ht (Specification 3/4.1.3.4) 2.2.1 All rods shall be dropped from 228 steps.

2.3 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5) 2.3.1 The shutdown rods shall be withdrawn to 228 steps.

2.4 Control Rod Insertion Limits (Specification 3/4.1,3.6, and 3/4.1.3.1) 2.4.1 The control banks shall be limited in physical insertion as shown in Figure 2.

2.4.2 Successive Control Banks shall overlap by 100 steps.

The sequence for Control Bank withdrawal shall be Control Bank A, Control Bank B, Control Bank C, and Control Bank D.

2.5 'xial Flux Difference (Specification 3/4.2.1) 2.5.1 The Allowable Operation Limits are provided in Figure 3.

2.5.2 The AXIAL FLUX DIFFERENCE (AFD) target band during base load operations is +3%,

-3% (not applicable for this cycle) 2.5.3 The AFD target band is +5%,

-5% for a cycle average accumulated burnup > 0.0 MWD/MTU Page 3 of 12

COLR for Donald C.

Cook Nuclear Plant Unit 2 Cycle 8

2.6 Heat Flux Hot Channel Factor F (Z) (Specifications 3.2.2)

CFQ F (Z)<

---

• K(Z)

Q P

for P > 0.5 F (Z)<

2

• CFQ

• K(Z) for P < 0.5 THERMAL POWER where'----------

RATED THERMAL POWER 2.6.1 CFQ-2.335 for Westinghouse VANTAGE 5 fuel CFQ-2.10 for ANF fuel 2.6.2 K(Z) is provided in Figure 4 for Westinghouse VANTAGE 5 fuel K(Z) is provided in Figure 5 for ANF fuel Page 4 of 12

COLR for Donald C.

Cook Nuclear Plant Unit 2 Cycle 8

2.7 Nuclear Enthal Rise Hot Channel Factor

- F' (Specification 3/4.2.3)

F ~ < CFDH * (1 + PFDH * (1-P))

THERifAL POWER where:

P W

RATED THERMAL POWER CFDH - 1.56 for Westinghouse VANTAGE 5 fuel 1..49 for ANF fuel 2.7.2 PFDH - 0.3, Westinghouse VANTAGE 5 fuel PFDH - 0.2, ANF fuel Page 5 of 12

\\

I COLR for Donald C.

Cook Nuclear Plant Unit 2 Cycle 8

2.8 Allowable Power Level APL (Specification 3.2.6)

APL-min over Z of Q *

(Z) * '(7(Z)

• F Q

P 2.8.1 V(Z) is provided in Table 1 for +5% AFD target band 2.8.2 CFQ and K(Z) is provided in COLR Section 2.6.1 2.8.3 F

is provided in Technical Specification 3.2.6 P

Page 6 of 12

1.0

.50 UNACCEPTABLE OPERATION 0.00

-.50 C7

-1.0 ACCEPTABLE OPERATION

~

1 5

-2.0

-2.5

-5.0 0

10 20 50 40 50 60 70 PERCENT RATEO THERMAL PONER 80 90 100 F IGURE 1

MODERATOR TEMPERATURE COEFFICIENT (MTC)

Page 7 of I2

~

~

\\J FULLY WITHDRAWN 0 529,228 200 BANK C 150 t/l 0

CL IVl 0, 128 BANK D 100 5

50

(.00 0.0 FULLY INSERTED

.20

.i0

.60 FRACTION OF RATED THERLlAL POWER

.80 FIGURE 2

ROD BANK INSERTION LIMITS VERSUS THERMAL POWER FOUR LOOP OPERATION Page 8 of 12

<<r 8

h C

100 90 80 70 60 50 40 30 20 UNACCEPTABLE OPERATION

-31 58 98 ACCEPTABLE OPERATION 98 UNACCEPTABLE OPERATION 31 58 10 0-50

-40

-30

-20

-10 0

10 20 30 FLUX DIFFERENCE (hl),

40 50 FIGURE 3 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER Page 9 of 12

1.2 1.0 0.0,1.0 6.0, 1.0

>2.0.0.925

.80

.40

.20 0.00 6

8 CORK HEIGHT (FT)

IO I2 FIGURE 4

K(Z) - NORMAI IZED FQ(Z)

AS A FUNCTION OF CORE HEIGHT FOR WESTINGHOUSE VANTAGE 5 FUEL page 10of 12

1.2 I.O 6.0, 1.0

11. 14,0 937 SO CC M

hC

.60 PV 12.0.0. 710

.40

.20 0.00 S

CORE HEIGHT (FT)

IO 12 FIGURE 5

K(Z) - NORMAI IZED FQ(Z)

AS A FUNCTION OF CORE HEIGHT FOR ANF FUEL Page 11 of 12

a, MKSH AXIAL fd). HKIGffT TNLK 1 g.

C.

COOK LNIT 2 CYCLE 4 Y(7) fUNCTINf SU~P ffANOKS (Mfff5/ICTU) o iso 1oOO 2000 1OOO eoOO SOoO 10000..

12oOO 150 1000 2000 1000 dooo 8000 10000 12000 14000 14000 18500 18500 KOL

'0 % %\\

1 2

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5 8

7 d

0 10 11 12 13 14 15 te 17 18 10 20 21 22 23 24 25 2d 27 2$

20 30

'1 32 33 34 3$

38 37 38 30 10it 12 43 44 45 48 47 14 10 50 51 S2 53 51

$5 se57" 5$

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5.0 8.2 d.4 5.8 8.8 7.0 7.2 7.1 7.8 7.8

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1

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1

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~ 1015

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1. 2243 1

~ 2370 1.2435

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~ 2444 1

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1. 2303 1.2'f01

1. 2055

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1. 170$

1

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1. 0000 Top and bottoe 10% of core are excluded as per Tecftnfcal Specff fcatfons.

Page 12 of 12