ML17332A945

Rev 4 to DC Cook Nuclear Plant Unit 1,Cycle 15,COLR

ML17332A945
Person / Time
Site:	Cook
Issue date:	09/30/1995
From:	INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17332A944	List: ML17332A943 ML17332A945
References
NUDOCS 9510020045
Download: ML17332A945 (13)

Text

DONALD C.

COOK NUCLEAR PLANT UNIT 1 CYCLE 15 CORE OPERATING LIMITS REPORT Revision 4 September 1995 95i0020045 950930 PDR ADOt K. 050003l5 P '.,.,

PDR.

COLR for DONALD C.

COOK NUCLEAR PLANT UNIT 1 CYCLE 15 1.0 CORE OPERATING LIMITS REPORT I

This Core Operating Limits Report for Donald C. Cook Nuclear Plant Unit 1

Cycle 15 has been prepared in accordance with the requirements of Technical Specification 6.9.1.9.

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 15 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 oderator 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 1.

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

-4.54E-4 ~k/k/ F.

This limit is based on a T program with HFP T

of 553 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 Power 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 -3.84E-4 ak/k/ F at a vessel 0

average temperature of 553 F.

0 Page 2 of 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 15 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2.3 Shutdown Rod Insertion Limit (Specification 3/4.1.3.4) 2.3.1 The shutdown rods shall be withdrawn to 231 steps.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 Allowable Operation Limits are provided in Figure 3.

2.5.2 The AXIALFLUX DIFFERENCE (AFD) target band during base load operations is +3X,

-3X (not applicable for this cycle).

2.5.3 The AFD target band is +5X,

-5X for a cycle average accumulated burnup > 0.0 MWD/MTU.

Page 3 of ll

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 15 2.6 Heat Flux Hot Channel Factor

- F (2) (Specification 3.2.2)

CFQ F (Z)< ---

• K(Z)

Q for P > 0.5 F (Z)<

2

• CFQ

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

P 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 I

Page 4 of 11

COLR for Donald C.

Cook Nuclear Plant Unit 1 Cycle 15 2.7 Nuclear Enthal Rise Hot Channel Factor

- F ~H (Specification 3/4.2.3)

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

THERMAL POWER Where' M

e

~

RATED THERMAL POWER 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 15 2.8 Allowable Power Level

- APL (Specification 3.2.6)

C

• K Z APL min over Z for F (Z)

• V(Z)

• F Q

P 2.8.1 V(Z) is provided in Table 1 for + 5X 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 Fp is provided in Technical Specification 3.2.6 Page 6 of 11

1.00 UNACCEPTABLEOPERATION 0.50 0.00 ACCEPTABLE OPERATION

-0.50

-1.00' 10 20 30 40 50 60 70 80 90 100 PERCENT RATED POWER FIGURE 1 MODERATOR TEMPERATURE COEFFICIENT (HXC)

Page 7 of 11

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COOK UNIT 1 CYCLE 14 V(Z) FUNCTION Page 11 of 11