ML20203H230

Rev 0 to COLR Surry 2 Cycle 15 Pattern Uz

ML20203H230
Person / Time
Site:	Surry
Issue date:	09/30/1997
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML18153A199	List: ML20203H230
References
NUDOCS 9712180352
Download: ML20203H230 (6)

Text

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Attachment 1 Core OpeIAtl093.imusleged -

Aurfy_ Unit 2 Cycle 15 PatteffLUZ i Baylalom_Q i t

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,... m m W- e m 3- p u , y -p n y y,- yyg*e-wgy- -- -v-+,-p-- .y,-aww

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o CORE OPERATING LIMITS REPORT SURRY 2 Cycle 15 Pattern UZ Revision 0 September 1997 S2C15/UZ COLR Rev 0 Page 1 of 5

a- . . f t

1.0 INTRODUCTI0tt  !

(COLR) for Surry Unit 2 Cycle 15 This Core Operating Limits Reporthas been prepared in accordance with th Specification 6.2.C.

The. technical specifications affected by-this report ares l

TS 3.1.E and T9-5.3.A.6.b - Moderator Temperature Coefficient '

TS 3.12.A.2 and TS 3.12.A.3 - Control Bant Insertion Limits TS 3.12.B.1 and TS 3.12.B.2 - Power Distribution Limits ,

2.0 OPERATING LIMITS I

The cycle specific parameter limits for the specifications listed in These ,

section 1.0 are presented in the following subsections.  ;

limits have -been developed using the NRC-approved methodologies specified in Technical Specification 6.2.C. c 2.1 Moderator Tesserature Coefficient (TS 3.1.E and TS 5.3.A.6.b) 2.1.1 The Moderator Temperature Coefficient (MTC) limits are I

+6.0 pcm/*F at less than 50 percent of RATED POWER, or

+6.0 pcm/*F at 50% of Rated Power and linearly decreasing '

to O pcm/*F at Rated Power

-2.2 control Bank Insertion Limits _ (TS 3.12.A.2) 2.2.1 The control rod banks shall be limited in physical insertion as shown in Figure l'.

1 Page:2 of 5 -

S2C15/UZiCOLR'Rev 0-e

. - .. . . - . -. _- , - - - = _ . - . . . - - . - - . . . - .-

. ._. _=- - - _. .- . - _ _ _ .

2.3 "--t Flux Mot Ph====1 Factor-F0fal (TS 3.12.B.1)

CFO FQ(z) $ ---

• K ( z ) POR P > 0 . 5 j P

CFQ FQ(z) 5 ---

• K (z) for P $ 0.5

. 'i ,

THERMAL POWER where P = ---.----------

RATED POWER  !

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2.3.1 CFO m 2.32

.2.3.2 K(z) is provided in Figure 2.

2.4 Muelear Enthainy Rise Mot Ch===e1 Factor- F3 (M) (TS 3.12.B.1)

FAH(N) $ CFDH * {1 + PFDH * (1 - P))

THERMAL POWER where P = -------------

RATED POWER 2.4,1 CFDH = 1.56 for Surry Improved fuel (SIF) 2.4.2 PFDH = 0.3 i

P S2C15/UZ COLR Rev 0 Page 3:of 5 i

. . , , .-v_r,., _ - . . _ . . . . _ - . _ _ . . .

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

i 1 I Flpure1 I ROD GROUP INSERTION LIMITS f Fully w/d poshion = 229 steps [

230  ;

(0.4875,;229) t r

220 210 200 -

C BANK (1.0,183) 180 170 100 150 h (0,15Q _ _ _

140 130 ,

i 120 -

i ! D BANK l,l 110 h

100 90

=--

70 so _ _ _

7 50

/

40 / -

i i

30 -

20 ~~ -

(0,23; 10 ,

0 0.0 0,1 0.2 0.3 0.4 0.5 - 0.6 0.7 0.8 0.9 1.0 Fraction of Rated Thermal Power S2CiS/UZ COLR Rev 0 Page 4 of 5

Figure 2 K(Z) NORMAUZED FQ AS A FUNCTION OF CORE HEIGHT t

1.2

=

1.1 I6,1.0) 1.0  %

0.9 -

7 127 925) -

0.s

~----- -- -- - - -

0.7 < ---- ---- -

0.0 -

g0.5- -

x OA -

0.3 ---- - -- -

0.2 -

0.1 0.0 -- -

0 1 2 3 4 5 6 7 8 9 10 11 12 CORE HEIGHT (PT)

S2015/UZ COLR Rev 0 Page 5 of 5

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