ML19343C509
| ML19343C509 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 03/13/1981 |
| From: | SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| Shared Package | |
| ML19343C506 | List: |
| References | |
| TAC-43369, NUDOCS 8103240401 | |
| Download: ML19343C509 (15) | |
Text
I LN E
THERMAL POWER LEVEL, %
. 120 112 (35, 112)
(-34, 112)
- 110 l ACCEPTABLE m; = 1.69 l
- 2
.0
= -
OPE 10N
(-47, 90) l 86.85 90 (46, 90) l ACCEPTABLE I
I l
go l
l l
l4 & 3 PUMP l
l OPERATION l
l
[
l 70 l
I (46, 64.85)
(-47, 64.85) i I
l l
58.88 60 I
I IACCEPTABLE l
l l
1 4, 3 & 2 PUMP 50 I
I I CPERATION l
I I
40 I
(-47, 36.88)I I
l (46, 36.88)
I I
I 30 g,
l l
[
l I
I UNACCEPTABLE sI
., l 20 l
I UNACCEPTABLE OPERATION
'I I "I
NI N
OPERATION a I aI 10
-l
-1
- l l<
f f ?
f it I
f I
t t
I I I I t
l 50 -40
-30
-20
-10 0
10 20 30 40 50 60 70 a or SMUD CYCLE 5 CORE PROTECTION. SAFETY LIMITS CURVE REACTOR COOLANT DESIGN FLOW, GPM
- 'u;:
K01 YH ORidlAL 3
187,986 SAC 9AMENTO MUNICIPAL UTILITY DISTRICT
i Figure 2.3-2 PROTECTIVE SYSTEM MAXIMUM ALLOWABLE SETPOINTS, REACTOR POWER IMBALANCE (CYCLE 5 )
THERMAL POWER LEVEL, %
'08
(-16,108)
(16,108)
E pCCEPTABL m = 1.0 l4 PUMP 100 m = 1.0 I
3PERATION l
2
(-32,92) l
,. go (32,92)
I I
I I
I I 80.35 80 i
l ACCEPTABL E l
l l
4 & 3 PUMP.
70 l
l(32,64.35)
(-32,64.35)l qPERATION l
l I
60 l
[
52.38 l
l
.\\CCEPTABLl l
l I
4,3&2 PUMF l
I 40
(-32, 36.38) fPERATIOr, g
i I
I l
30 l
1 I
I UNACCEPTABLE l
UNACCEPTABLE l
l OPERATION
,l l
l OPERATION
~~
f I
lE 7I I
jo l
I e
a a
u i
t i* I "I
I I
i 1=
I
=1 I
I i 50
-40
-30
-20
-10 0
to 20 30 40 50 60 a?EA
,e Reactor Power Imbalance SMUD CYCLE 5 MAXIMUM ALLOWABLE SETPOINTS
.. :t tef CURVE REACTOR COOLANT DESIGN FLOW, GPM l
1 387,600 2
288,374
$MU l
3 187,986 SACRAMENTO MUNICIPAL UTILITY DISTRICT
FIGURE 3.5 2-1 Rod index Vs Power Level Rancho Seco Cycle 5 0 - 60 EFPD 110 105 (197,102)
(288, 102) 100 95 90 (280 92) 85 (270,81) 80 operation 75 Not Allowed 70 65 60
"***"IC**d 55 y
50 (122,50)
(232,50) 2 45 40 35 30 25 Operation 20 All **d 15 (60,15}
10 (0,6.6) 5 l
0 t
i i
i i
t i
t t
t o
20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index t
f f
I I
I I
I o
25 50 75 100 0
25 50 75 100 g
i I
f f
0 25 50 75 100 Bank 6 l
PROPOSEDONLY NOT YET OfflClAL 1
$SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT L,
FIGURE 3.5.2-2 Rod index vs Power Level Rancho Seco Cycle 5 50 - 250 EFPD 110 105 (259,102)
(280, 102) 100 95 (280,92) 90 85 Operation Not Allowed 80 (270,8C )
75
[g 70 65 J
60 55 y
50 (196,50)
(232,50) 2 h5 ho 35 30 25 20 Operation 15 (118,15)
Allowed (0,6,6)10 5
o i
i i
i i
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod index i
i i
i i
I I
J 0
25 50 75 100 0
25 50 75 100 e
i t
t i
0 25 50 75 100 Bank 6 PR3P03EDDNLY Nui ki uccel
$sMun SACRAMENTO MUNICIPAL UTILITY DISTRICT
~
FIGURE 3.5 2-3 Rod index Vs Pcwer Level Rancho Seco Cycle 5 J
Four Pump Operation 110 105 (244,102)
(273,102) 100 95 (267,92<
90 85
[
(240,80) 80 Operation Not Allowed g>
75 70 65 60 55 (174,50) y 50 2
45 40 Operation 35 Allowed 30 25 20 15 (96,15) 10 5
0 t 0 3) e i
i 0
20 40 60 80 100 120 140 160 180 200 220 240 260 280 300-Rod index t_
i i
t i
0 25 50
-75 100 0
25 50 75 100 e
i i
i 0
25 50 75 100 Sank 6 PROPOSEDONLY NDT YEfOfflCIAL l
esuuo SACRAMENTO MUNICIPAL UTILITY DISTRICT
FIGURE 3.5 2-4 Rod index Vs Power Level Rancho Seco Cycle 5 0 - 60 EFPD 3 Pump Operation 110,
105 100
.(197,102)'
(270,10:')
95 90 operation 85 Not Allowed 80 75 70 Restricted 65 (232,64) 60 55 (122,50) 50 j
ct 45 40 operation 35 Allowed 30 25 20 15 (60,15) 10 (0,6.6) 5 o
e
's i
0 20 40 60 30 100 120 140.160 180 200 220 240 260 280 300 Rod Inde>
i f
f i
i 1
1 I
1
..j 0
25 50 75 100 0
25 50 75 100 I
I t
I i
o 25 50 75 100 Bank 6 f
PROPOSEDgyLy NOT YET OFRug gsuuo SACRAMENTO MUNICIPAL UTILITY DISTRICT
FIGURE 3.5.2-5 Rod Index Vs Power Level Rancho Seco Cycle 5 50 - 250 EFPD 3 Pump Operation 110 105 (259,102)
(270,10t) too 95 90 85
[
80 3
Operation not Allowed l
75
~
,n 4
(232,64) 65 60 55 (196,50) j 50 2
45 LO 35 30 Operation 25 Allowed 20 15 (118,15) 10 (0,6.6) 5 0
i i
i i
i i
i e
i e
i i
i e
o 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index-t
{
t__
t t
I I
f i
t 1
i 0
25 50 75 100 0
25 50 75 100 t
I f
f f
0 25 50 75 100 Sank 6 Pil0P03ED ONLY enrveiorrelAl.
nerem kut iL l
l 9suuo SACRAMENTO MUNICIPAL UTILITY DISTRICT l
FIGURE 3 5.2-6 Red index vs Power Level Rancho Seco Cycle 5 230 EFPD - EOC (APSR Out) 3 Pump Operation 110 105 (244,102) 100 95 90 85 80 75 operation Not Allowed-70 65 60 55 (174,50)
E 50 b
45 60 35 30 Operation 25 AII
- d 20 15 (96,15) 10 5
0 i (0 4) i i
i i
i i
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod index 1
i i
i j
l l
t l
0 25 50 75 100 0
25 50 75 100 1
1 f
f f
0 25 50 75 100 Bank 6 PROPOSECONLY Id.tt i7 y,i y r$o, N, Ili b L
G
$SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT
FIGURE 3.5.2-7 APSR Withdrawal Vs Power Level Rancho Seco Cycle 5 APSR Position Limits (0-600) 110 (6,102)
(29,102) 100 (6,92)
(30,92)
RESTRICTED REGION 90 80 (0,80) 7,80) 70
~
m 3
60 (100,50) 50 O
PERMISSIBLE OPERATING 40 REGION g
3 2
30 20 10 0
I f
f f
I I
1 I
I I
o 10 20 30 40 50 60 70 80 90 100 110 APSR withdrawal, %
nai ioa, r
h\\h ft 3
e esuuo SACRAMENTO MUNICIPAL UTILITY DISTRICT e
FIGURE 3.5.2-8 APSR Withdrawal Vs Power Level Rancho Seco Cycle 5 APSR Position Limits (50-2500) 110 (6,102)
(32,102)
RESTRICTED 100 REGION
,92)
(38,92) 90 (0,80) 45,80) 80 70 e
3 h 60 C
(100,50) 50 0
PERMISSIBLE OPERATING 0
REGION uv 3'
30 20 10 0
O 10 20 30 40 50 60 70 80 90 100 110
.aPSR withdrawal, %
rnua edw dial NOT Ytl N iCIAL
$SMU=
CACRAMENTO MUNICIPAL UTILITY DISTRICT
FIGURE 3 5.2-9 Coro imbalance Vs Power Level Rancho Seco Cycle 5 0 - 60 EFPD imbalance Envelope 110
(-13,102)
(23,102) f 100 RESTRICTED REGION J(-14,92)
(23,92) 90 80
-26,80)
(26,80) o j
70 3
j 60
/(-50,50)
(50,50) 50 e
J PERMISSIBLE o
40 OPERATING 2
REGION 30 20 10 i
i e
t t
i e
i i 40 20
-10 0
10 20 30 40 50 Core imbalance, %
. nw aom bo. Y i$) 'i i
i g SACRAMEN'f 0 MUNICIPA suuo
FIGijRE 3.5.2-10 Core imbalance Vs Power Level Rancho Seco Cycle 5 50 250 EFPO (APSR in)
Imbalance Envelope 110 i
(-18.102)
(73,102) l 100 RESTRICTED REGION
(-21,92)
(23,92) 3g 80
-32,80)
(26,80) 70 3
j 60
(-50.50)
(50,50) 50 PERMISSIBLE U
40 OPERATING j
REGION 30 20 10 0
i 8 40
-30
-20
-10 0
10 20 30 40 50 Lore imbalance, %
PRBPCSEDyby gre h a l p{? f w a$a m!
li A. lP
$' SACRAMENTO MUN SMUD
+
a O
FIGURF 3 5.2-11 Core imbalance Vs Power Leve!
Rancho Seco Cycle 5 230 EFPD - EOC (APSR Out)
Imbalance Envelope
~
110
(-27,102)
(14,102)
~
RESTRICTED REGION
(-28,92)
(IO'92) 90
(-28,80)
(28,80) 80 70 3
~
~
PERMISSIBLE s
OPERATING
_(32,50)
- ~(-50,50) o 50 REGION e
[ 40 8"
30 0
THIS FIGURE VALID ONLY FOR OPERATION AFTER APSR WITHDRAWAL to 0 50 30
-20
-10 0
10 20 30 40 50 60 Core imbalance, %
PROPOSE [IDNLY Nlif YEI Uffl gSMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT
RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Figure 3.5.2-12 LOCA Limited Maximum Allowable Linear Heat Rate 21 20 g
19 18 i
SALANCE OF CYCLE 16 FIRST 50 EFPD-
[
/
=
E 14 13 l
12 0
2 4
6 8
10 12 Axiat 1,0 cation of Peak Power f rom Bottom of Core, f t PROPOSEDONLY Nul VfT OFRCIAL
$SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT
RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Design Features 53 REACTOR Spectflcation j
,. 3.1 -
Reactor Core 5 3 1.1 The reactor core contains approximately 93.1 metric tons of slightly enriched uranium dioxide pellets. The pellets are encapsulated in zircaloy-4 tubing to form fuel rods. Thereactorcoreismadeup(o{(2) 1 177 fuel assemblies.
Each fuel assembly contains 208 fuel rods.
5 31.2 The reactor core shall approximate a right circular cylinder with an equivalent diameter of 128.9 inches and an active height of 144 inches.(2) 5.3 1.3 The average enrichment of the in I core for Rancho Seco is a nominal 2.57 weight percent of U Three fuel enrichments are used in the' Initial core.
- 5 3.1.4 _There are 61' full-length control rod assemblies (CRA) and 8 axial power ' shaping rod assemblies -(APSRA)= distributed in the reactor core as shown in. FSAR figure 3 2,45 The full-length CRA contain a 134 inch length' of silver-indium-cadmium alloy clad with stainless steel.
The APSRA contain a 36 inch (gngth of silver-indium-cadmium alloy clad with stainless steel.
3.5.1.5 The initial core will have 68 burnable poison' assemblies with
! similar. dimensions as the full-length control rods. The cladding will be zircaloy-4 ' filled with aiuminum oxide-boron carbide pellets
.and placed in the core as shown in FSAR figure 3.2-2.
- 5. 3.:1.6 -Reload fuel assemblies and rods shall conform to. design and eval-uation described in the FSAR. A reload -core may also have bu'rnable 76 poison assemblies with dimensions similar to the full-length control rods with materials as specified in 5 3 1.5 5.3.2?
' Reactor Coolant System 5;3.2.1 Thereactorcoolant'systemshallbegsignedandconstructedin accordance with code requirements 5 3.2.2 The -reactor coolant system and any connected: auxiliary systems-exposed to the reactor coolant conditions of. temperature and pressure, shall be designed for. a pressure.of 2,500 psig and a shall be designed forja. temperature of 670 F.bg urizer surge line
- temperature of 650 F.
The pressurizer and pre 5.3 2.3.The reactor coolant: system volume shall be less than 12,200 cubic feet.
5-4 rroposed'Aa,endment No. 76
_ _ _