ML20203H230
| ML20203H230 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 09/30/1997 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML18153A199 | List: |
| References | |
| NUDOCS 9712180352 | |
| Download: ML20203H230 (6) | |
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Attachment 1
Core OpeIAtl093.imusleged Aurfy_ Unit 2 Cycle 15 PatteffLUZ i
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CORE OPERATING LIMITS REPORT SURRY 2 Cycle 15 Pattern UZ Revision 0 September 1997 S2C15/UZ COLR Rev 0 Page 1 of 5
f a-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 section 1.0 are presented in the following subsections.
These have -been developed using the NRC-approved methodologies limits specified in Technical Specification 6.2.C.
c 2.1 Moderator Tesserature Coefficient (TS 3.1.E and TS 5.3.A.6.b)
The Moderator Temperature Coefficient (MTC) limits are 2.1.1 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)
The control rod banks shall be limited in physical insertion 2.2.1 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 i
i 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
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ROD GROUP INSERTION LIMITS f
Fully w/d poshion = 229 steps
[
230 (0.4875,;229) t 220 r
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
/
i 40 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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