ML20140F141

Rev 5 to Cycle 5 Colr

ML20140F141
Person / Time
Site:	Seabrook
Issue date:	04/22/1997
From:	NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:
Shared Package
ML20140F138	List: ML20140F132 ML20140F141
References
RE-21, RE-21-R05, RE-21-R5, NUDOCS 9705020123
Download: ML20140F141 (21)

Text

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RE-21 CORE OPERATING LIMITS REPORT CYCLE 5 COLR i

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RE DEPT SUPERVISOR (G T" and K = 0.0 for T s T" , where:

T =. Average temperature ("F) , and T" = Indicated T,y at RATED THERMAL POWER (Calibration temperature for AT instrumentation s 588.5 'F).

2.1.2.4 Channel Total Allowance (TA) = N.A.

2.1.2.5 Channel Z = N.A.

2.1.2.6 Channel Sensor-Enor (S) = N.A. .

2.1.2.7 Allowable Value - The channel's maximum Trip Setpoint shall not exceed its computed Trip Setpoint by more than 2.1% of AT span (150 PU_AT).

RE 21

' Rev. 01-05-05 Page 4 of 21 2.1.2.8 F2(AI) is a function of the indicated difference between top and bottom detectors of the power range neutron ion changers with gains to be selected based on measured instrument response during plant startup tests. F2(A I) is specified in Figure 1.2.

2.2 Shutdown Margin Limit For MODES 1,2,3, and 4: (Specification 3.1.1.1)

A) Th: Shutdown Margin shall be greater than or equal to 1.3% A K/K, in MODES 1,2,3.

B) The Shutdown Margin shall be greater than or equal to 1.8% A K/K in MODE 4.

2.3 Shutdown Margin Limit For MODE 5: (Specification 3.1.1.2)

The Shutdown Margin shall be greater than or equal to 1.8% AK/K 2.4 ModeratorTemperature Cxfficient: (Specification 3.1.1.3) 2.4.1 The Moderator Temperature Coefficient (MTC) shall be less positive than +2.19 x 108 AK/KFF for Beginning of Cycle Life (BOL), All Rods Out (ARO), Hot Zero Thermal Power condidons.

d 2.4.2 MTC shall be less negative than -4.7 x 10 AK/K/"F for End of Cycle Life (EOL). ARO, Rated nermal Powerconditions.

d 2.4.3 He 300 ppm ARO, Rated Thermal Power MTC shall be lest negative then -3.8 x 10 AK/K/"F l

(300 ppm Surveillance Limit).

2.5 Shutdown Rod Insertion Lhnit: (Specification 3.1.3.5) 2.5.1 The shutdown rods shall be fully withdrawn. The fully withdrawn position is defiried as the interval within 225 steps withdrawn to the mechanical fully withdrawn position inclusive.

2.6 Control Rod Insertion Limits: (Specification 3.1.3.6) 2.6.1 The control rod banks shall be limited in pbrsical insertion as specified in Figure 2.

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. . RE-21 Rev. 01-05-05 Page 5 of 21 2.7 Axial Flux Difference: (Specification 3.2.1) 2.7.1 For operation with the Fixed Incore Detector Alarm OPERABLE, the indicated AFD must be within the Acccpble Operation Limits specified in Figure 3.1.

2.7.2 For operation with the Fixed Incore Detec*nr Alarm inoperable, t$e indicated AFD must be within the Acceptable Operation Limits specified in Figure 3.2. i 2.8. Heat Mux Hot Channel Factor: (Specification 3.2.2) 2.8.1 F**n = 2.50 2.8.2 . For operation with the Fixed Incore Detector Alarm OPERABLE, the K(z) used surveillance requirements 4.2.2.2 and 4.2.2.4 is specified in Figure 4.1.

2.8.3 ' For operation WL t.he Fixed Incore Detector Alarm inoperable, the K(z) used to surveillance rear,irement 4.2.1.2 is specified in Figures 4.2,4.3,4.4, and 4.5.

2.9 Nuclear Enthalpy Rise Hot Channel Factor: (Specification 3.2.3) < '

The limir 1",, are specified in Figure 5. 'Ihe limits apply to F"in measured using either the fixed or movable incore detectors since a bounding measurement error has been allowed b determination of the design DNBR limit value.

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SEABROOK STATION CYCLE 5 Axial Flux Imbalance '-

{ CORE OPERATING LIMITS REPORT Penalty Function j

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SEABROOK STATION CYCLE 5 Axial Flux Imbalance CORE OPERATING UMITS REPORT Penalty Function -

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1 Bank A must be fully withdrawri prior to power operation. j i1 Fully Withdrawn is defined as the All-Rods Out position. The control rod insertien limits have been revised ;

ARO repositioning between 225 and 231 steps withdrawn.

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Axial Flux Dinerence Limits SEABROOK STATION CYCLE 5 as a Function of Ratad ThermalPower j for Operation WIth _,

1 CORE OPERATING LIMITS REPORT Fixed incore Detector System Alarm OPERABLE j

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Axial Flux DMerence Umits as a Function of Rated Thermal Power SEABROOK STATION CYCLE 5 for Operation With .

CORE OPERATING UMITS REPORT Fixed incore Detector System Alarm Inoperable FIGURE 3.2

RE-21

. Rev. 01-05-05 Page 11 of 21 s

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F (Z) Umit As A Function of Core Height SEABROOK STATION CYCLE 5 f8r Operation with s CORE OPERATING LIMITS REPORT Fixed incore Detector System Alarrn OPERABLE FIGURE 4.1 '

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" SEABROOK STATION CYCLE 5 Fixed incore Detector System Alarm Inoperable CORE OPERATING UMITS REPORT and Cycle Average Bumup < 3.0 GWD/Mtu i

FIGURE 4.2

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SEABROOK STATION CYCLE 5

, Fixed Incore Detector System Alarm inoperable CORE OPERATING LIMITS REPORT and Cycle Average Bumup 3.0 to B.0 GWD/Mtu FIGURE 4.2A

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F (Z) Limit As A Function of Core Height f8r Operation with SEABROOK STATION CYCLE 5 Fixed incoro Detector System Alarm inoperable CORE OPERATING LIMtTS REPORT and Cycle Average Burnup 10.0 to 12.0 GWD/Mtu FIGURE 4.3A

RE-21 Rev. OI-05-05 Page 16 of 21 2.2 ,

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l F (Z) Limit As A Function of Core Height l ;

10r Operation with '

i SEABROOK STATION CYCLE 5 Fixed incore Detector System Alarm inoperable l CORE OPERATING LIMITS REPORT and Cycle Average Bumup 14.0 to 16.0 GWD/Mtu I

FIGURF. 4.4 i

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RE-21 e Rev. 01-05-05 Page 18 of 21 2.2 2.1 #

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F (Z) Limit As A Function of Core Height (Or Operation with SEABROOK STATION CYCLE 5 Fixed incore Detector System Alarm inoperable CORE OPERATING LIMITS REPORT and Cycle Average Bumup 16.0 to 18.0 GWD/Mtu FIGURE 4.4A

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F (Z) Limit As A Function of Core Height f0r Operation with SEABROOK STATION CYCLE 5 Fixed incore Detector System Alarm inoperable CORE OPERATING LIMITS REPORT and Cycle Average Bumup >18.0 GWD/Miu FIGURE 4.48

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a 1 , . RE 21 l Rev. 0 I-05-05 Page 20 of 21 Height Exposures (GWD/MTU)

(Ft) 03 3-8 8 10 10 12 12 14 14 - 16 16 18 > 18 0.2500 1.931 1.931 1.987 1.970 1.953 1.953 1.995 2.036 0.7500 1.952 1.952 2.006 1.985 1.965 1.965 2.006 2.047 1.2500 1.973 1.973 2.023 2.004 1.986 1.986 2.027 2.068 1.7500 j 2.000 2.000 2.047 2.031 2.014 2.014 2.055 2.095 2.2500 2.035 2.035 2.079 2.066 2.053 2.053 2.079 2.105 2.7500 2.076 2.076 2.119 2.111 2.103 l 2.103 2.108 2.114 3.2500 2.050 2.124 j 2.125 2.094 2.063 2.033 2.003 1.972 3.7500 1.987 2.129 2.082 2.034 1.986 1.939 1.891 1.843 4.2500 1.934 2.079 2.025 1.971 1.917 1.867 1.817 1.766 4.7500 1.913 2.053 1.997 1.940 1.884 1.836 1.788 1.740 5.2500 1.926 2.057 2.000 1.943 1.886 1.836 1.786 1.736 5.7500 1.934 2.051 1.987 1.923 1.859 .

1.811 1.763 1.716 t 6.2500 1.917 2.002 1.947 1 892 1.836 1.797 1.759 1.720 6.7500 1.929 1.957 1.919 1.882 1.844 1.814 1.784 1.754 7.2500 1.950 1.944 1.921 1.898 1.875 1.856 1.837 1.819 7.7500 1.983 1.951 1.942 1.934 1.926 1.919 1.913 1.906 8.2500 1.959 1.950 1.950 1.960 1.970 1.980 1.983 1.985 8.7500 1.939 1.939 1.941 1.960 1.980 1.999 2.016 2.032 9.2500 1.927 1.927 1.935 1.963 1.991 2.019 2.048 2.077 9.7500 1.919 1.919 1.934 1.967 2.000 2.033 2.072 2.110 10.2500 1.914 1.914 1.933 1.968 2.004 2.040 2.083 2.126 10.7500 1.905 1.905 1.932 1.972 2.012 2.052 2.092 2.133 11.2500 1.890 1.b90 1.923 1.966 2.008 2.050 2.089 2.128 11.7500 1.856 1.856 1.890 1.937 1.985 2.032 2 058 2.083 I

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Coordinates for i SEABROOK STATION CYCLE 5 Fq(Z) Limit As A Function of Core Height for Operation with CORE OPERATING LIMITS REPORT Fixed incore Detecter System Alarm inoperable FIGURE 4.5

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All-Rods-Out SEABROOK STATION CYCLE 5 Nuclear Enthalpy Rise Hot Channel Factor CORE OPERATING LIMITS REPORT Versus Power Level FIGURE 5 A