ML17331B351

Rev 3 to COLR for DC Cook Nuclear Plant Unit 1 Cycle 14

ML17331B351
Person / Time
Site:	Cook
Issue date:	04/11/1994
From:	INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17331B350	List: ML17331B349 ML17331B351
References
NUDOCS 9404200266
Download: ML17331B351 (21)

Text

DONALD C.

COOK NUCLEAR PLANT UNIT 1 CYCLE 14 CORE OPERATING LIMITS REPORT Revision 3

March 1994 l

'9404200266 940%ii PDR ADOCK,05000315 PDR

COLR for DONALD C.

COOK NUCLEAR PLANT UNIT 1 CYCLE 14 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report for Donald C.

Cook Nuclear Plant Unit 1 Cycle 14 has been prepared in accordance with 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 3/4.1.3.3 3/4.1.3.4 3/4.1.3.5 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 Limits Control Rod Insertion Limits Axial Flux Difference Heat Flux Hot Channel Factor Nuclear Enthalpy Hot Channel Factor Allowable Power Level Page 1 of 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 14 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.

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

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

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

-4.54E-4 ak/k/ F.

This limit is based on a T program with HFP T of 553 F

avg avg where:

ARO stands BOL stands EOL stands RTP stands HFP stands for All Rods Out for Beginning of Cycle Life for End of Cycle Life for Rated Thermal Power 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 -3.84E-4 ak/k/ F at a vessel average 0

temperature of 553 F.

0 Page 2 of 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 14 2.2 Rod Dro Time Dro Hei ht (Specification 3/4.1.3.3) 2.2.1 All rods shall be dropped from 231 steps.

2.3 Shutdown Rod Insertion Limit (Specification 3/4.1.3.4) 2.3.1 The shutdown rods shall be withdrawn to 231 steps.

2.4 Control Rod Insertion Limits (Specifications 3/4.1.3.5 and 3/4.1.3.1) 2.4.1 The control rod banks shall be limited in physical insertion as shown in Figure 2.

2.4.2 Successive Control Banks shall overlap by 103 steps.

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

2.5 Axial Flux Difference (Specification 3/4.2.1) 2.5.1 The Allo~able Operation Limits are provided in Figure 3.

2.5 '

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 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 14 2.6 Heat Flux Hot Channel Factor

- F (Z) (Specification 3.2.2)

CFQ F (Z)< ---

• K{Z)

Q for P > 0.5 F {Z)<

2 + CFQ

• K(Z) for P < 0.5 where:

P-THERMAL POWER RATED THERMAL POWER 2.6.1 CFQ-2.15 for Westinghouse fuel 2.6.2 K(Z) is provided in Figure 4 for Westinghouse fuel Page 4 of 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 14 2.7 Nuclear Enthal Rise Hot Channel Factor

- F u.H (Specification 3/4.2.3)

F

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

aH where:

P THERMAL POWER RATED THERMAL POWER 2.7.1 CFDH - 1.49 for Westinghouse fuel 2.7.2 PFDH - 0.3 Page 5 of 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 14 2.8 Allowabie Power Level

- APL (Specification 3.2.6)

C

• K Z APL-min over Z for F (Z)

• V(Z)

• FP 2.8.1 V(Z) is provided in Table 1 for + 5$ AFD target band 2.8.2 CFQ and K(Z) are provided in COLR Sections 2.6.1 and 2.6.2, respectively 2.8.3 F

is provided in Technical Specification 3.2.6 Page 6 of ll

1.00 UNACCEPTABLEOPERATION 0.50 0.00 ACCEPTABLE OPERATION

-0.50

-1.00 0

10 20 30 40 50 60 70 80 90 100 PERCENT RATED THERMALPOWER FIGURE 1 MODERATOR TEMPERATURE COEFFICIENT (MTC)

Page 7 of ll

240 220 I

I I

54

~ 5. 23 I I i03 STEP 0~LAP 200 180 160 Ge 03 E

140 O

120 100 O0'0 0

32 BANK BANK D

( F00. LB9l 60 40 20 0

0 0

Ol 20 40 60 80, 100 RELATIVE POWER (PERCENT)

D Bank (1.89) (4 power)

+ 0 C Bank RZL = (1.89) (4 Power)

+ 128 FIGURE 2

ROD BANK XNSERTION LIMITS VERSUS THERMAL POWER FOUR-LOOP OPERATXON Page 8 of ll

0

100 90 80 70 60 50 ON OPERATI

-31, 50 UNACCEPTABLE

-11, 9 11, 0

ACCEPTABLE OPERATION UNACCEPTABLE OPERATI N 3,50 40 30 20 10 0-50

~0

-30

-20

-10 0

10 20 30 40 50 Flux Difference (dJ), %

FIGURE 3 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER Page 9 of 11

1.20 1.00 (0.0, 1.0)

(6.0, 1.0)

(12.0, 0.925) 0.80 D

0.60 0.40 OR 0.20 0.00 8

coax HEIGHT (FT) 10 12 FIGURE 4 K(Z) - NORMALIZED Fg(Z)

AS A FUNCTION OF CORE HEIGHT FOR WESTINGHOUSE FUEL Page 10 of 11

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DONALD C.

COOK UNIT 1 CYCLE 14 V(Z) FUNCTION Page ll of ll