ML20212A722

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Rev 0 to Rbs,Cycle 8,COLR
ML20212A722
Person / Time
Site: River Bend Entergy icon.png
Issue date: 10/11/1997
From:
ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20212A720 List:
References
NUDOCS 9710240214
Download: ML20212A722 (27)
v • d • e


Text

. . . - - . - . _ . - ~ - . - ~ . . . .- - -.~ .. . .

Page 1 of 37 I RBS CYCLE 8 COLR ,

Revision 0

- l RIVER BEND STATION, CYCLE 8  !

\

i CORE OPERATING LIMITS REPORT (COLR) l PREPARED BY: h/[ /0J77 Resp 6nsible Engineer Date: ((2((f/

REVIEWED BY: /Eje, / m Review Engineer 6 46 # Date: [ / [cr7 APPROVED BY: /nf A b,hmQ ync Date: ?.$ err ff77 Manager Safety & Engineering.

Analysis APPROVED BY: ( u Date: k2 l Director, Engineering River Bend Nuclear Station APPROVED BY: Y /gaw Date: /6/n/GA Ffcilitieshview Committee River Bend Nuclear Station 9710240214 971017 DR ADOCK 05 48

-- ~ ~ - . -- . - _ . . - - . ._ . . - - . . - .

l Page 2 of 27 l RBS CYCLE 8 COLR 1 Revision 0 INTRODUCTION AND

SUMMARY

This report provides the values of the AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR) limits, the LINEAR HEAT GENERATION RATE (LHGR) limits, and the MINIMUM CRITICAL POWER RATIO (MCPR) limits for the Cycle 8 core. These limits are given as a function of thermai power, core flow, and exposure. Also provided is the REACTOR
PROTECTION SYSTE; A (RPS) response time for APRM thermal time constant for River Bend Station for Cycle 8. Technical Specification section 5.6.5 requires these values be determined using NRC approved methodology and are established such that all applicable limits of the plant safety analysis are met.

In some cases limits in the COLR differ from the limits in the core monitoring system. This is sometimes due to limitations in the core monitoring system to model the actual limits, in which case the core monitoring limr 3 may be more conservative than the COLR limit. In other cases the limits in the COLR are presented in less detail than in the core monitonng system. When these situations exist the core monitoring limits

, will explained or be referenced by the COLR and will be made available to Operations.

j Control Rods The River Band core utilizes both GE original equipment and ABB CR-82M bottom entry cruciform control rods. These Control Rod designs are discussed in n ore detail in reference 7 2

I s

Page 3 of 27 RBS CYCLE 8 COLR Revision 0

. TECHNICAL SPECIFICATION 3.2.1 POWER DISTRIBUTION LIMITS AVERAGE PLANAR LINEAR HEAT GENERAT10N RATE (APLHGR)

The limiti.7g APLHGR (sometimes referred to as Maximum APLHGR, or MAPLHGR) value for the most limiting lattice (excluding natural uranium) of each fuel type as a function of AVERAGE PLANAR EXPOSURE is given in Figures 1,2,3,4,5. 6 and 7. These values were determined with the SAFER /GESTR LOCA and GESTR-Mechanical metnodology described in GESTAR-II (Rererence 1). Core location by fuel type is provided in Figure 20 and is the reference core loading pattern in reference 3. These figures are used if alternate calculations are required.

The limits of these figures shall be reduced to a value of 0.87 times the two recirculation loop operation limit for GE8 and 0.79 times the two recirculation loop operation limit for GE11 when in single loop operation (Reference 3). Thermal power and core flow dependent multipliers are provided. The value of the exposure dependent limit is reduced by the value of the multiplier at a given offrated power or flow condition. These multipliers are independent of the single loop multipliers and are shown on figures 18 and 19.

The APLHGR limits in the core monitoring system are in more detail than the limits that appear in the COLR due to there propri6tary nature. The core monitoring system has APLHGR limits for each lattice in a bundle ratner than listing only the most limiting value for the entire bundle (Reference 8) Reference 4 lists the core monitoring system limits.

J W

- . . - - -- .. - . . .. .- _ _ ~ - - . .

Page 4 of 27 RBS CYCLE 8 COLR ,

Revision 0 B

TECHNICAL SPECIFICA T10N 3.2J POWER DISTRIBUTION LIMITS MINIMUM CRITICAL POWER RATIO (MCPR)

- The MCPR limits for use in Technical Specification 3.2.2 for flow dependent MCPR (MCPRp)(Reference 3), power dependent MCPR (MCPRp)(Reference 3) are shown in Figures 15,16 and 17. The most limiting value frvm the applicable MCPR, and MCPR, figures is the operating limit. These values were determined with the GEMINI methodology and GEXL PLUS critical power ratio correlation described in GESTAR-ll(Reference 1) and are consistent with a Safety Lirnit MCPR from Technical Specification 2.0 The Operating Limit MCPR values in Figures 15,16, and 17 must be increased by 0.01 during single loop

, operation.

4 i

4 I

I J

Page 5 of 27 RBS CYCLE 8 COLR Revision 0 TECHNICkL SPECIFICATION 3.2.3 POWER DISMIBUTION LIMITS L!NEAR HEAT GENERATION RATE (LHGR) 4 The limiting LHGR value for the most limiting lattice (excluding natural uranium) of each fuel type as a function of AVERAGE PLANAR EXPOSURE is given in Figures 8,9,10,11,12,13 and 14 These values were determined with GESTR Mechanical methodology as cribed in GESTAR ll(Reference 1). Core location by fuel type is pivvided in Figure 20 and is the reference core loading pattern in reference 3. These figures are used if attemate calculations are required. Thermal power and core flow dependent multipliers are provided in figures 18 and 19. The value of the exposure dependent limit is reduced by the value of the multiplier at a i given offrated power or flow condition.

The LHGR limits in the core monitoring system are in more detail than the limits that appear in the COLR due to their proprietary nature. The core monitoring system has LHGR limits for each lattice in a bundle rather than listing only the most limiting value for the entire bundle. Reference 4 lists the core monitoring system limits.

4

_ _ . - . . . . . ~ . - . . - . _ . . . -.- - , . _ - . - - . . - . . .- - -- . - - . - - - . - - ~

Page 6 of 27 RBS CYCLE 8 COLR Revision 0 TECHNICIL SPECIFICATION TABLE 3.3.1.1 1 The simulated thermal power time constant for use in Technical Specification Table 3.3.1.1-1, SR 3.3.1.1.14, is (Reference 6):

6 0.6 seconds.

The maximum simulated thermal power time constant for ura in Technical Specification surveillance Table 3.3.1.1-1, SR 3.3.1.1.14 is:

6.6 seconds

. - - ,e

Pace 7of 27

- RBS CYCL.E 8 COLR Revision 0 REFERENCES

1) NEDE-24011-P-A-13 and US Supplement, " General Electric Standard Application for Reactor Fuel," August 1996, 1
2) Letter, J.S. Charnley (GE) to M.W. Hodges (NRC), Recommended MAPLHGR Tec,hnical Specifications for Multiple Lattice Fuel Designs,

, March 91987

3) J1103160SRLR Supplemental Reload Licensing Report for River Bend l

Station Reload 7 Cycle 8" July 1997.  !

i

4) J110 150 MAPL, Revision 0 " Lattice Dependent MAPLHGR Report for River Bend Station Reload 7 Cycle 8" July 1997.  !

l 5) FC# 818R46, " RIVER BEND RELOAD 6 DESIGN EXPOSURE CYCLE

SUMMARY

" June 1995.

6) Letter, R.E. Kingston to G. W. Scronce, " Time Constant Values for Simuisted Thermal Power Monitor' GFP 1032 November 30,1995.
7) RBS USAR Section 4.1 1

f d

_ . _ _ ~ ___-. . _ ._ _ .. _. _ -. __ _ . _ _ _ _ . _ . . _ _ _._ _ _ _ _ _. _ ._

Page 8 of 27 RSS CYCLE 8 COLR Revision 0 FIGURE 1 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR ,

EXPOSURE GE11 P9SUB386-12GZ 120T-146-T I

13 , . 1 i I I I T

I I

! i I

]12

.1 , ,. . .

A I F y i J ilk . k g FI I I h r Q 11 1. '

F  ! '4l h i 1 m Xs Z - - i g 1 1  !

I .lt O 10 .

i F l \

g ___, g Z 'i . ____

it: 't' ,

i h9 z

4_.;

s

., g s

h .

1 4 i 4 !i s Z i' '

j 8 _'_ _.,  ;

=

w x,

O \ ,

j

  • W 7 ,

o,a .i i ll>

4 a

'k

3 E i 48 a-3 5

0 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

-~ -. . - - - - .

Page 9 of 27 RBS CYCLE 8 COLR Revision 0 FIGURE 2 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11 P9SUB36012GZ 120T 146 T 13 .

I 3 a=== J Lh

  1. I 1. l i l12

(([

,' ki

[ / \

2F I L h h g FI I i 'L O 11 s P ' ' , ,,

I i W ':.

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0 10 '.

F X'

$ m z x _

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z ,

3 --

g ,<

4 ks i z

t 58

=

s

s, L W i k

l7 W

4 w

7

\'

'm

! 3 %1-i :D E ll

{6 3 l 5

0 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST) i

Page 10 of 27 RSS CYCLE 8 COLR Revt.cn 0 FIGURE 3 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE88 P8SQB334-10GZ2120 M 4WR 150-T 14 ,

f

. !\ l'A i

{13 g  ; ,-

a

.# 'u .

z g i/

ii i

's .

'I  ! i'd'

12 . . . . . m:

h i !# l l '!

'i' "

l A jI ,'!  ; 'mi' l  !

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O i-W s o i g ,___

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~3 g

g ,

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a. 8 W i ii O i II
'I

[ I W

> 7 1

4 ,

, . i 3 ,i 3

3 6

. =

l i 5

O 10 20 30 40 50 AVERAGE PLA.NAR EXPOSURE (GWd/ST)

Page 11 of 27 i RBS CYCLE 8 COLR l Revision 0 i

FIGURE 4 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE88-P85QB33411GZ 120 M-4WR 150 T a l 4

~

14 . . -

I li' i

- s"i 1 E f i%;

  1. ~

- h13 .: i v

i k<  !!!

3 .

s E ,II i Xs i ,i i l

2 1

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1 i i H- , -

i if , 1 i 5

l . I . 't -

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. w 11 , . . .

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{

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dp m

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, 5 }

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5 i

30 40 50 O 10 20 AVERAGE PLANAR EXPOSURE (GWd/ST) 4

Page 12 of 27 RBS CYCLE 8 COLR Revision 0 FIGURE 8 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11 P95UB35414GZ 120T 146 T 14 . .

I I I w< e v .

m:

g Xi I I I '1

. I [

~

' I h \,! , i i P .

r i ~~

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l

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Z 10

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>4 i

\;.

$ \.-

3 3E . .

6 3

s

<=

-4

, 5 O 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

Page 13 cf 27 RBS CYCLE 8 COLR Revision 0 FIGURE 6 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11 P95UB35413GZ 120T-146 T 14 '

I I I I k I l 13 . .

g l li l

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A R G 6 "

3 5

0 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

l 1

Page 14 of 27

{

RBS CYCLE 8 COLR j Revision 0 l

. FIGURE 7 MAXIMUM AVERAGE PLANAR LINEA 11 HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11 P9SUB353-10GZ 146-T 14 p.,-.-+y

-e i 1 1 I I . I

~

i  !

I y

! I, i i

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g 13 ,,1 j ii!,i i r .

i .

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=

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O 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

i I l Page 15 of 27 RBS CYCLE 8 COLR Revision 0 FIGURE 8 LINEAR HEAT GENERATION RATE (LHGR) LIMIT VERSUS AVERAGE PLANAR EXPOSURE GE)1 P95UB38612GZ.

1 120T 146 T i

i 15 I I I I I I I I 1 I i I I I I I I ,

I I "'E T I I , I 1 I I 16 'a. __--

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5 0 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

I l

4

[

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Page 16 of 27 RSS CYCLE 8 COLR Revision 0 4

FIGURE 9 LINEAR HEAT GENERATION RATE (LHGR) LIMIT VERSUS AVERAGE PLANAR EXPOSURE GE11-P9SUB38012GZ-120T 146-T 15 I I I I I I I I I I I I I 1 I I I I I I I I

~ L I 14 '.

I M I I I I I I g h, '

  • I I I I I 1

1 '

+=g r 1
; ~__+_;

13 * " .

E  :

~

4

] ,

E I i ',.!

I M.

l l I I I I I h I I I p., ==' '

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I
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--+ ,

5-0 10 20 30 40 50 60 AVERAGE MANAR EXPOSURE (GWd/ST)

i l

Page 17 of 27 RBS CYCLE 8 COLR Revision 0 8

FIGURE 10 LINEAR HEAT GENERATION RATE (LHGR) LIMIT VERSUS AVERAGE PLANAR EXPOS'JRE GE88 P8SQB33410GZ2- j l

120 M 4WR 150-T l l

i 1 15 I I I I 7

I I I I I . I I I I Y

,mm, I I I I ' I I I 'E I I I I I M I I I I I 1 14 .. . --

1 , m  ;

1 I ,1 . ,

. 1  : . , ,

I 1 'L' I I I 1 1 I I I I 13 '

E , , -Y l l ,

g

.g i

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,--,~; , ,
5 0 10 20 00 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

Page 18 of 27 i RBS CYCLE 8 COLR Revisbn 0 4

FIGURE'11 LINEAR HEAT GENERATION RATE (LHGR) LIMIT  :

l VERSUS AVERAGE PLANAR EXPOSURE GE88-P8SQB334-11GZ 120 M 4WR 150 T

)

1 i i l

l 15 .

l  ; l~ 'it i 1

I IM.

I

+ 1 1 1 14 7.' e '

1  : , ,  ;

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+

, . 1 5

i 0 1'O 20 30 40 50 60 l AVERAGE PLANAR EXPOSURE (GWd/MT)

Page 19 of 27 RBS CYCLE 8 COLR Revision 0 l l

1 FIGURE'12 LINEAR HEAT GENERATION RATE (LHGR) LIMIT I VERSUS AVERAGE PLANAR EXPOSURE GE11 P9 SUS 35414GZ-120T.146-T IS .

1 , ,  ; i  ; 1 1 ,1 1 1 1 1 1

l1 1 A-'  ; ,1 1 1 ,

I 'd

. 1 i i 1 i i 1 1 l 1 .N E-14 , ;X. 1 , m-1 1 1 1 l 1 ' 3d 1 ' '

1

, 1 %i 1 1 i l 'm: . M 1

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1 y;

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6 I I I I I I , I 1 I I I I I I I 1 I E I I I I I I I I I 7 7 I I I I 1 I I I , I I I I 5

0 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST)

Page 20 of 27 RBS CYCLE 8 COLR Revision 0 FIGURE 13 LINEAR HEAT GENERATION RATE (LHGR) LIMIT VERSUS AVERAGE PLANAR EXPOSURE GE11 P9SUB354-13GZ-120T-146 T 15 1 I I I I I 1 I I I I I I I I I I I I I I I I

~

I I I I I I I I I N I 1 1 14 ' "

I 1'M I l I I I M I I I I I I I I I . M I I I L I I I

q I I I

.M' I I 1 13 -h I I I I I

I I L I I g I I I

I I

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I I I 1 M i I I I I I I I I :M I I I I I I I I r I M I I I I I . M I I I I I I I I . . I . I Mk I .

3  ;

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6 I  ! I I I I I I I I I I l llI 1 I l ,

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0 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST) 1 l

l' l

Page 21 of 27 RBS CYCLE 8 COLR Revision 0 FIGURE 14 LINEAR HEAT GENERATION RATE (LHGR) LIMIT ,

I VERSUS AVERAGE PLANAR EXPOSURE GE11 P9SUB353-120T-10GZ 146-T 15 -- ' ' ' >

,, , , i i 1 i 1 l 1 1 1

, iM M: '

1 1 1 ir i i

_',a i 1 I' I I 14 ~'%. '

m; . , ,

1 i'= i  !

1 1 - s- 1 + 1 1

1 I I

, 3 I I

.*d

M 2 I I sI I r I

1 "miM . I W I I I I M I I

m. ;

E

, z 12 . .

I a 2 I

5' l h  !

l 1

I '

L l

g 11 1

X -

+

3 .

l+

10 -

y ,, , , ,

y .  :  :

s w , , ,

O O 1 > 1

%' > i &

>- , , 1  : m g '

'L

,8

p .

1 tt: , " ,;

g ~

++-!

I I 'kl I

I I

a 7

.1 z , - .

3_..

I I I T 6

I I 5

O 10 20 30 40 50 60 AVERAGE PLANAR EXPOSURE (GWd/ST) 1.

p... .. . .. . - - - - _

Page 22 of 27 RBS CYCLE 8 COLR Revision 0 x

FIGURE 15 OPERATING LIMIT MCPR (MCPRr)

VERSUS CORE FLOW FOR GE8 AND GE11 FOR EXPOSURES LESS THAN OR EQUAL TO FOC-1820 mwd /ST*

1.800 1 . .. . .

l l l ,

! 1 l  !

I l l .

ii  ! i i b I  !

i i 1.700 I i 1.600 -

! i i , i i l li i i l 1.500 l *40 ~~

l . ,ii i 1.43 i ,

h h 1.400  % m 1.38 , ,

g g iii-q 1.34 k I 7k 1.30 t

1.300 y '

1.29 y 1.200 i

1.100 1.000 i '

20 30 40 50 60 70 80 90 100 110 120 CORE FLOW (W), % OF RATED CORE FLOW

  • These values must be increased by 0.01 during single loop operation.

Page 23 of 27 RBS CYCLE 8 COLR Revision 0 FIGURE 16 OPERATING LIMIT MCPR (MCPRr)

VERSUS CORE FLOW FOR EXPOSURES GREATER THAN EOC-1820 mwd /ST*

1.800 . .

- ' i I i I

I

j _-+  ;

1.700 l

Y

~

1.600

'l

! 1 *GE8 1.500 .

1,4s~"'{

Wi I *GE11

's.

! 1.43 M iI I' %

lO1.400 '

'Nw 1.3s ,

a ~

,i i

. 4 -

A 's-1.34 ---

1,34ZZ g --

1.300

! i'5 3,3o.:. Z 1.2 s  ::

i 1.200 I

1.100 i

1.000 20 30 40 50 60 70 80 90 100 11J 120 CORE FLOW (W), % OF RATED CORE FLOW

  • These values must be increased by 0.01 during single loop operation.

Page 24 cf 27-RBS CYCLE 8 COLR Revision 0

. FIGURE 17 OPERATING LIMIT MCPR (MCPRp)

VERSUS THERMAL POWER FOR GE8 AND GE11' 4

2.10 . .i' 2 . .

g I .

I I I I I I I

' - *M 1  ! . . .1 d[ ' !I ll 2.00 &

.-r.. M > 50% Flow i i 1 i

i L~~~ 't . 9 5 "J ' '

1 iM -

.7h

. l 1.91

! . I i i I

i I I . . i 1.90 1 g,, i+;j ,

, , 1.ss m .

1.ss i, 'i; 1.s1 i l' 'i'

! i ,  !  ; ,

1 . 81 0 ..

. t.

,  ? - i! . '; '4 , l l l ' 'W . .i

__.' g_ ,

, sg l1 .

1.71 1 I I I M I 'E l I I I 1.70 < = 50% Flow d g,7j 7 -

", i i 'u" i

, i a  ! i O 1.60 i

'.g 1,64

! l 3 ' '

1 i  ; l

' i

! I k i 1.50 1. .

i ".

'M I

1 i

; g ___ .

1 = 1.39 1.40 '

i i r  %& i!  ; &

i 'm 1,32

'%^' 1 i i l i i aj i 1.30 '. m .

'm!

'n y

' 1.26 g l li 1.20 i !! i!

l l; il i

Il

! . . . l l' l l l l l 1.10 10 20 30 40 50 60 70 80 90 100 110 i

THERMAL POWER, % OF RATED THERMAL POWER

  • These values must be increased by 0.01 during single loop operation.

i

Page 25 ef 27 RBS CYCLE 8 COLR Revision 0

'~

FIGURE 18 LHGR AND MAPLHGR MULTIPLIER VERSUS CORE FLOW FOR GE8 AND GE11 1.1 3g I _ l _

3 -

_ _L ' i l I I I Ill ii l 7 ; j

.000

/ ~0.9779

/

0.9

!/ 0.9141 Y

I f

. _0.8481 0.8 '

a, f I [ -

? >

d 0.7 <

O I I I l b --

0.6873 1

' I 0.6 4 I

I IO.5457 0.5 0.4 20 30 40 50 60 70 80 90 100 110 CORE FLOW, % OF RATED CORE FLOW t

Page 1

-- - . - . . . - - - . - .- . . . . - . . - - . - _ - . ~ . - - . . - . _ - . - -

Page 26 of 27 i

RBS CYCLE 8 COLR l Ftevision 0

' ~

FIGURE 19 LHGR AND MAPLHGR MULTIPLIER VERSUS THERMAL POWER FOR GE8 AND GE11 i l

l 1.1 I

j i 0.9876- l

{ 1 -

1.000 -

i /

i t

1 i

0.9 .

/ 0.9523 -

l J

f

& {

/

$0.8 i l 4 /

4 a

f k I --

! d 0.7 lj 0.7250 m

a \ A r

[

/

O.6 j UI l I

, p- '

  1. 0.5894 - -
_ . / t l- l~

- l 0.5389 0.5391 0.5 -

! 0.4 20 30 40 50 60 70 80 90 100 110 THERMAL POWER, % OF RATED THERMAL POWER l

1 i

Page 27 of 27 RSSCYCLA8COUR

, R6v6elon 0 FIGURE 20 MEFERENC1 CORE LOADING PATTERN su CD CD WE CD EF.J O

eMMMMMMMo
~ oMMMMMMMME
i"C M M M M M M M M M Mo
HMMMMMMMMMMMM
- m H M M M M M M M M M M M M o '
s H M M M M M M M M H H H H i
s M M M M M M M M M M M M M E
!MMMMMMMMMMMMME
qMMMMMMMMMMMMM5 -

ll MMMMMMMMMMMMM L5H M M M M M M M M M M"

': "MMMMMMMMM5 '

2

  • MMMMMMM5 DWWDDDDD IIIIIIII i i e li si n it i: :: n n er te n n n u n ei .e .i e .e ii n n Fuel Type A= Gell-MSUB34120Z-120T-14T (Cycle 8) E= Gell-MSt'MI JZ-130T-IST (Cycle 7)

B= Gell-MSUS)40-120Z-120T-14T (Cycle 8) F=GEss-M agen aGZ2-120M-4WR-lWT (Cycle 6)

CrCEll-MSUB3414GZ-120T-14T (Cycle 7) G=CE48-rs5QBT t lGZ-120M-4WR-IST (C)cte 61 D= Gell-MSUB3Wl)CZa 120T-14T (Cycle 7)

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