ML20196A072

Cycle 8 COLR in ITS Format & W(Z) Function

ML20196A072
Person / Time
Site:	Braidwood
Issue date:	03/16/1999
From:	Gurley J, Richard Lee COMMONWEALTH EDISON CO.
To:
Shared Package
ML20196A065	List: BW990028, Forwards Braidwood Unit 2 Cycle 8 COLR in ITS Format & W(Z) Function, IAW TS 5.6.5 ML20196A072
References
NFM9900022, NFM9900022-R, NFM9900022-R00, NUDOCS 9906220118
Download: ML20196A072 (14)

Text

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NUCLEAR FUEL M ANAGEMENT DEP/.RTMENT NUCLEAR DESIGN INFORMATION TRANSMITTAL

@ SAFETY RELATED Originating Organization NDIT No NFMoonWM O NON SAFETY RELATED @ Nuclear Fuel Management Seq No o O REGULATORY RELATED D Other(specify) Page l of 14 Station Braidwood Unit 2 Cycle 8 Generic To. { onnie K. Kepley Subject Braidwood Unit 2 Cycle 8 Core Operating Limits Report in ITS Format and Wfr) Function R. Lee Preparer Preparer's Signature 3//r/49 Date '

l

> GurIn Reviewer JA > / ~3ll1,l49 Repiewer's Signature l

Date

/'

Status ofInformation: @ Verified O Unverified O Engmeenns Judgement Method and Schedule of Verification for Unverified NDITs-Description of Information. Attached is the Braidwood Unit 2 Cycle 8 Core Operating Limits Report (COLR) in the ITS formai and Wm function Purpose of information- This COLR incorporates the ITS format and W(Z) function. Braidwood Station is requested to perform an independcat Technical Review (ITR) of this document Upon completion of the ITR, Braidwood Station is to transmit the COLR ponion to the Nu:Icar Regulatory Commission. Please provide NFM (Rob Lee) with a copy of Braidwood Station's completed ITR and COLR submittal to the NRC.

Source ofInformation 1) PND Calculation Number PC 01. "BR2CB W(z) Curve Cencration," File NDN 10 6 dated 3/BN9 f

2) PND Calculation Number 5P 14."BR2C8 SPIL UET,* File NDN 10A dated 1/21/99 I i

Supplemental Distribution: J Bauer(DG) M G. Needham (BW) P. Boyle (BW)

E. Youngs. Manges (DG) H. S. Kim/J. Dunlap (DG) D. R. Redden Braidwood Central File D G. Central Files l

l 9906220118 DR 990610 ADOCK 05000457 PDR

NDIT NFM990002:

t', Seq 0 Page 2 of 14 CORE OPERATTNG LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for draidwood Station Unit 2 Cycie 8 has been prepared in accordance with the requirements of Technical Specification 5.6.5 (ITS).

1 The Technical Specifications affected by this report are listed below: -

LCO 3.1.1 Shutdown Margin (SDM)

LCO 3.1.3 Moderator Temperature Coefficient l

l LCO 3.1.4 Rod Group Alignment Limits I LCO 3.1.5 Shutdown Bank Insertion Limits LCO 3.1.6 Control Bank Insertion Limits LCO 3.1.8 Physics Tests Exceptions- Mode 2 LCO 3.2.1 Heat Flux Hot Channel Factor (Fo(Z))

LCO 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (F%)

l LCO 3.2.3 Axial Flux Difference (AFD)

LCO 3.3.9 Boron Dilution Protection System (BDPS) i LCO 3.9.1 Boron Concentration The portions of the Technical Requirements Manual affected by this report are listed below:

TRM TLCO 3.1.b Boration Flow Paths - Operating TRM TLCO 3.1.d Charging Pumps - Operating TRM TLCO 3.1.f Borated Water Sources - Operating TRM TLCO 3.1.h Shutdown Margin (SDM)- MODE 1 and MODE 2 with keff 21.0 TRM TLCO 3.1.i Shutdown Margin (SDM)- MODE 5 l TRM TLCO 3.1.] Shutdown and Control Rods

i NDIT NFM9900022 1'. Seq 0 Page 3 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 2.0 OPERATING LIMITS The cycle-specific parame:er limits for the specifications listed in Section 1.0 are presented in the following subsections. These limits are applicable for the entire cycle unless otherwise identified These limits have been developed using the NRC-approved methodologies specified in Technical Specification 5.6.5.

2.1 Shutdown Marain fSDM)

The SDM limit for MODES 1, 2, 3, and 4 is:

2.1.1 The SDM shall be greater than or equal to 1.3% Ak/k (LCOs 3.1.1, 3.1.4, 3.1.5.

3.1.6, 3.1.8, 3.3.9, and 3.9.1; TRM TLCOs 3.1.b, 3.1.d. 3.1.f, 3.1.h. and 3.1.j)

The SDM limits for MODE 5 are:

2.1.2.1 SDM shall be greater than or equal to 1.0% Ak/k (LCO 3.1.1).

2.1.2.2 SDM shall be greater than or equal to 1.3% Ak/k (LCO 3.3.9, TRM TLCO 31.i and 3.1.j).

2.2 Moderator Temocrature Coefficient (LCO 3.1.3)

The Moderator Temperature Coefficient (MTC) limits are:

'2.2.i The BOUARO/HZP-MTC shall be less positive than +3.7 x 10 Ak/k/'F.

2.2.2 The EOL/ARO/HFP-MTC shall be less negative than -4.1 x 10d Ak/k/'F.

2.2.3 The EOUARO/HFP-MTC Surveillance limit at 300 ppm shall be less negative than or equal to -3.2 x 10d Ak/k/'F.

where: DOL stands for Beginning of Cycle Life ARO stands for All Rods Out HZP stands for Hot Zero Thermal Power EOL stands for End of Cycle Life HFP stands for Hot Full Thermal Power I

i 9

e.

l l

NDIT NFM9900022 t Seq.0 Page 4 of 14 CORE OPERATING LIMITS REPORT (CoLR) for BRAIDWOOD UNIT 2 CYCLE 8 2.3 Shutdown Bank Insertion Limit (LCO 31.5) 2.3.1 All shutdown banks shall be withdrawn to at least 228 steps.

2.4 Controt Bank insertion Limits (LCO 3.1.6) 2.4.1 The control banks shall be limited in physical insertion as shown in Figure 2.4.1.

'2.4.2 The control banks shall be operated in sequence by withdrawal of Bank A, Bank B, Bank C and Bank D. The control banks shall be sequenced in reverse order upon insertion.

2.4.3 The control banks shall be operated with a 113 step overlap.

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NDIT NFM9900022 I ', - Seq.0

' Page $ of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 Rgtre14.1:

Canted Bank insertion Units Versus F%rcent Rated Thermd Pomr (274 228) (774 228) m

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0 10 20 30 e 50 ED 70 80 90 100 Ruhtwo Pouir(Percart) l M

, NDIT NFM990002:

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R'. Seq.0

' Page 6 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 P'

l 2.5 tig.g' Flux Hot Channel Factor (F;(Z)) (LCO 3.2.1)

I 2.5.1

)

p9 an l

Fq(Z)5 xK(Z) for P s 0.5 0.5 l Fq(Z)s Fq"" xK(Z) for P > 0.5 P

where: P = the ratio of THERMAL POWER to RATED THERMAL POWER F"" = 2.60 K(Z) is provided in Figure 2.5.1.

2.5.2 W(Z) is provided in Figures 2.5.2.a through 2.5.2.d.

The normal operation W(Z) values have been determined at burnups of 150.

4000,10000, and 19600 MWD /MTU.

Table 2.5.2 shows the Feo (z) penalty factors that are greater than 2% per 31 Effective Full Power Days. These values shall be used to increase the F*o(z) as l

, per Surveillance Requirement 3.2.1.2. A 2% penalty factor shall be used at all l cycle bumups that are outside the range of Table 2.5.2.

Multiplication Factor = 1.02 4

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l NDIT NFM9900022 t>, Seq.0 Page 7 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 i

Figure 2.5.1: K(Z)- Normalized Fq(Z) as a Function of Core Height 1.1 (0.0, 1.0) (6.0, 1.0) 1 (12.C,0.925) 0.9 O.8

, q 0.7 -

~

cr W

I 0.6 2e z

h0.5 ,

~

E +LOCA Limiting

• O'd i Envelope 0.3 0.2 0.1 -

0 0 1 2 3 4 5 6 7 8 9 10 11 12 BOTTOM Core Height (ft) TOP

=.

NDIT NFM94000" t'. Seq.0 Page 8 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 PeCht MAX W(Z)

Feet Braiowood Urvt 2 Cyce 8 0.00 1.0000 0.20 1.0000 Figure 2.5.2.a 0 40 1.0000 0.60 1.0000 Summary of W(Z) Function at 150 MWD /MTU 0.80 1.0000 (Top and Bottem 15% Esduced per WCAP.10216) 1 00 1.0000 1.20 1.0000 -

1.40 1.0000  !

1.60 1.0000 ' 1.20 .

1.80 1.1925 ,,, ,

2.00 1.1892 i *

~ 1 2.20 1.1858 ,l '

2 40 l

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, , i 2.80 3.00 1.1733 1.1683 1 ,

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1.15 4.20 1.1458 .i *: l j 4 40 1.1413

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• 6 40 1.1070 1.10 .

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7.20 1.1153

• i 7 40 1.1151 ,

• I 7.60

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8 00 1.1088 8 20 1.1045 -

8 40 1.0994 i l l [ j i l .

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l,'l ll;l 10.80 1.0000  ;

i , i ' ' I t 11.00 1.0000 1.00 i 11.20 1.0000 O.00 2.00 4.00 6.00 8.00 10.00 12.00 11 40 1.0000 i 11.60 1.0000 CORE HOGHf (FEET) 11.80 1.0000 12.00 1.0000 u___

NDIT NFM99000:2 9I. Seq.0 j o- Page 9 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 Hei9ht MAX W(Z) .

Feet Braidwood Urut 2 Cyde 8 I 0.00 1.0000 0.20 1.0000 Fgure 2.5.2.b l 0.40 1.0000 l 0.60 1.0000 Summary of W(Z) Funmort at 4000 MWD /MTU J

0 80 1.0000 (Top and Bottom 15% Erduded per WCAP 10216) 1.00 1.0000 l 1

1.20 1.0000 --

1 40 1.0000 l 1.60 1.0000 1.20 1.80 1.1789 i 2.00 1.1777 I I '

2.20 1.1759 2.40 1.1738 ' '

l 2.60 2.80 1.1714 1.1685 llj,. "ijl +

llj,' j j j 3.00 1.1655 * '

3.20 1.1621 ' i

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3 40 1.1583 'e- > <

3 60 1.1551 . . ,

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4.00 1.1500 1.15 4.20 1.1470 4 40 1.1436 l ,  ;

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4 60 1.1396  !  ; ,, ; ,

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5.00 1.1300 5.20 1.1244 *

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5 60 1.1112 I +

5 80 1.1034 x

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11.80 1.0000 I l 12.00 1.0000 l

NDIT NFM9900022 o  % . Seq.O r Pace 10 of 11 l

CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 i

Hesght MAX W(Z) l Feet Bradwood Urut 2 Cyde 8 0.00 1.0000 0.20 1.0000 Figure 2.5.2.c 0 40 1.0000 I

l 0.80 1.0000 Summary of W(Z) Funson at 10000 MWD /MTU 0 80 1.0000 (Top and Bottom 15% Emduded per WCAP.10216) 1.00 1.0000 -

1.20 1.0000 --

l 1.40 1.0000 i l

1.60 1.0000 e I 1.80 ,

1.2020 ,

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2.20 1.1961 ,i

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4.00 1.1577 f , ,*,  !

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4 60 1.1419 1.15 4 80 1.1361 ' * , - I 5 00 1.1299 .

5.20 1.1231 e; ; l ,. l 5 40 '

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$ 80 I' * -

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6.00 1.0964 $ ,

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6.80 1.1106 g 1.10 ,,

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8 60 1.0915 ,  ; ; i

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8 80 1.0850 1.05 9 00 1.0804 i

.l1 9 20 1.0778 8 I I r ' l  !

9 40 1.0764 i .

9 60 9 80 1.0779 1.0799 ljl llf l{}[ "l i ,

10.00 10.20 1.0822 1.0836

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10 40 10.60 1.0000 1.0000 l

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j 11.20 1.0000 l 0 00 2.00 4.00 6.00 8.00 10.00 12.00 11.40 1.0000 1 11.60 1.0000 i CORE HEIGHT (FEET) i 11.80 1.0000 i 12.00 1.0000

NDIT NFM9900022 gy, Seq.O r *

, Page iI of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 Heght MAX W(Z)

Feet Braedwood Urvt 2 Cyde 8 0.00 1.0000 0.20 1.0000 Fi9ure 2.5.2.d 0.40 1.00 %

0.60 1.0000 Summary of W(Z) Funson at 19600 MWD /MTU 0.80 1.0000 (Top and Bottom 15% Exduded per WCAP.10216) 1.00 1.0000 1.20- 1.0000 _

1.40 1.0000 1.60 1.0000 1.80 1.2236  ; ,

2.00 1.2179 .

2.20 1.2114 i ' r - -

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'2.60 1.1980 i l 1' 'l el l i

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3.00 3.20 1.1778 1.1683 , 120 lll y! j !il l ll

' ll 3.40 1.1609

• l 3.60 1.1574 '

3.80 1.1546  ;* '

l j j 4.00 1.1515 .

4.20 1.148C , 6 ' l

' l 4 40 1.1440 , ,

4.60 1.1397 . 1 ,

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• 5.00 1.1295 e i

-l 5.20 1.1238 1.15 5 40 1.1182

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6.20 1.1174 h l ;e l **f** '

6 40 1.1212 5 , * , ' ,

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NDIT NFM9900022 g? ,

Seq.0 Page 12 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 Table 2.5.2 Fq Margin Decreases in Excess of 2% per 31 EFPD i

Cycle Burnup Max % Decrerse  !

(MWD /MTU) in Fq Margin 150 5.27 314 521 478 5.10 642 4.95 806 4.75 970 439 1134 3.94 1298 3.44 1462 2.98 1626 2.55 1790 2.18 1954 2.00 11301 2.00 11465 2.09 1 11629 239 11793 2.66 11957 2.89 12121 3.09 12285 3.26 12449 3.37 12613 3.36 12777 3.28 12941 3.14 13105 3.00 13269 2.83 13433 2.59 '

13597 2.31 13761 2.02 i I3925 2.00 Note: All cycle burnups outside the range of the table shall use a 2% decrease in Fq margin for compliance with the 3.2.1.2 Surveillance Requirements. i

s NDIT NFM9900022 9

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Page l'> of 14 !

CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 j 2.6 Nuclear Enthalov Rise Hot Channel Factor (Q (LCO 3.2.2) 2.6.1 F," s F7[1.0 + PF,(1.0 - P)]

wheref P = the ratio of THERMAL POWER to RATED THERMAL POWER  ;

FW = 1.70 1 PF, = 0.3 1

2.7 Axial Flux Difference (AFD) (LCO 3.2.3) 2.7.1Y The AXIAL FLUX DIFFERENCE (AFD) target band is +3, -12% of the target flux t difference.

2.7.2 The AFD Acceptable Operation Limits are provided in Figure 2.7.1. I 2l8 Boron Concentration (LCO 3.9.1) 2.8.1 The refueling boron concentration shall be greater than or equal to 2000 ppm.

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NDIT NFM990002:

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, , t'. Seq.0 Page 14 of 14 CORE OPERATING LIMITS REPORT (COLR) for BRAIDWOOD UNIT 2 CYCLE 8 FIGURE 2.7.1: Axial Flux Difference Limits As A Function of Rated 1 Thermal Power ,

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