find strategy to maneuver power level by controlling - control rod movement with automatic boron ppm, or - control boron pppm with automatic control rod. - fully withdrawn position is 38[r]
(1)6 e-CORSIM practice
(2)MASTER
Input MAS_INP
XS-Library
MAS_XSL Form FunctionsMAS_HFF
Restart MAS_RST
Output MAS_OUT
Summary MAS_SUM
Restart MAS_RST Pin Info.
MAS_PPI MAS_PEI
MAS_PPI: Pin by Pin Information File MAS_PEI: Pin Enthalpy File
MASTER interface files
(3)JOB
INP
EXE
EDT
END
Brief information displayed on screen - Key parameters
- Loading pattern (fuel, control rod) - Critical paramters
- Xenon curve (axial offset) MASTER feature:
- Pause before next phase
- Read and execute fragmented input
- Show key parameter to GUI at the end of a phase GUI feature :
- Initialize by reading master input
- Display key parameters on user demand - Activate controls
- Prepare fragmented input for MASTER (EXE and EDT card) - Invoke MASTER and wait
e‐CORSIM flow
• e-CORSIM is a graphic user interface for MASTER training course
(4)Install
setup: e-Cosim Setup.msi
(5)e‐CORSIM
L/P search – setup loading pattern
(6)Fuel Management Scheme
FA Type No of FAs
Cycle 1 Cycle 2 Cycle 3 Cycle 4 Cycle 5 Cycle 6 Cycle 7
A 45
B 44 41 9 1 1
C 44 44 16 8
D 44 44 40 8 1
E 48 48 48 4
DS 4 4 4
F 60 60 48 12
G 56 56 49
H 64 64 36
J 64 64
K 56
Cycle Length
(MWD/kgU) 13.650 10.160 13.390 13.810 15.920 17.399 14.800 Cycle
Length
(EFPD) 370 276 360 382 434 470 400
from Long term study
(7)FA Type Summary
FA Type
Fuel Enrichment
(w/o U-235) No of Fuel Rods per FA No of BA Rods per FA
BA Content
(w/o)
Loaded Cycle Normal Zoned Normal Zoned
A0 1.30 236 0 0 - 1
B0 2.37 236 0 0 - 1,2,3
B1 2.36 1.30 176 52 8 4.0 1,2,3,4,5
B2 2.37 232 0 4 4.0 1,2,
C0 2.87 2.35 184 52 0 - 1,2,3
C1 2.87 2.36 176 52 8 4.0 1,2,3,7
D0 3.35 2.87 184 52 0 - 1,2,3,4
D1 3.36 2.85 176 52 8 4.0 1,2,3
D2 3.35 2.87 128 100 8 4.0 1,2,3,7
E0 4.08 3.61 184 52 0 - 2,3,4
E1 4.08 3.61 176 52 8 6.0 2,3,4
E2 3.60 3.11 176 52 8 6.0 2,3,4,5
DS 3.35 2.85 184 52 0 - 3,4,5
F0 4.11 3.59 184 52 0 - 3,4,5
F1 4.11 3.59 176 52 8 6.0 3,4,5
(8)FA Type Summary
FA Type
Fuel Enrichment
(w/o U-235) No of Fuel Rods per FA No of BA Rods per FA
BA Content
(w/o)
Loaded Cycle Normal Zoned Normal Zoned
G0 4.10 3.62 184 52 0 - 4,5,6
G1 4.11 3.62 176 52 8 6.0 4,5,6
G2 4.12 3.61 172 52 12 6.0 4,5,6
H0 4.52 4.00 184 52 0 - 5,6,7
H1 4.50 4.00 176 52 8 6.0 5,6,7
H2 4.50 4.00 172 52 12 6.0 5,6,7
J0 4.48 4.00 184 52 0 - 6,7
J1 4.48 4.00 176 52 8 6.0 6,7
J2 4.48 4.00 172 52 12 6.0 6,7
K0 4.49 4.00 184 52 0 - 7
K1 4.48 4.01 176 52 8 6.0 7
K2 4.48 4.01 172 52 12 6.0 7
K4 4.48 4.00 168 52 16 8.0 7
K5 4.48 4.00 176 52 8 8.0 7
K6 4.48 4.00 172 52 12 8.0 7
(9)FA Type Summary
Enrichment Zoning Pattern & Burnable Absorber Rod Arrangement
A0,B0 C0,D0,E0,DS,F0,
G0,H0,J0,K0
B1,C1,D1,E1,E2,F1, G1,H1,J1,K1,K5
B2
(10)FA Type Summary
Burnable Poison Rod Description
With Axial Cutback
5%
(11)Control Element Assembly (CEA)
Bank Type
180°
270°
90°
0°
1 1
S 2 3 2 S 3 B B B B 3 S 4 P 5 P 4 S
B A A A A B
2 P P 2
1 B A 1 1 A B 1 3 5 4 5 3 1 B A 1 1 A B 1
2 P P 2
B A A A A B S 4 P 5 P 4 S
3 B B B B 3 S 2 3 2 S
1 1
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 X
(12)Regulating & Shutdown Banks
180°
270°
90°
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 S
S
S
S
S
S S
S
M M
M M
M
M M
M
177 FUEL ASSEMBLIES 73 CEA’S AND CEDM’S 8 MANEUVERING CEA’S
8 ADDITIONAL LOCATIONS FOR SHUTDOWN CEA’S 45 FIXED RHODIUM IN-CORE NEUTRON DETECTOR STRINGS
2 NEUTRON SOURCE ASSEMBLIES
(M) (S) (●) (◆)
4-finger
(13)Core Loading Pattern for Cycle 1
FA ID
180°
270° 90°
B0 C0 D0 C0 B0
B0 D0 D2 C1 C1 C1 D2 D0 B0 C0 D1 D2 A0 B2 B1 B2 A0 D2 D1 C0 B0 D1 C1 A0 C1 A0 B2 A0 C1 A0 C1 D1 B0
D0 D2 A0 C1 A0 D2 A0 D2 A0 C1 A0 D2 D0
B0 D2 A0 C1 A0 C1 A0 B2 A0 C1 A0 C1 A0 D2 B0 C0 C1 B2 A0 D2 A0 B0 B1 B0 A0 D2 A0 B2 C1 C0
D0 C1 B1 B2 A0 B2 B1 A0 B1 B2 A0 B2 B1 C1 D0
C0 C1 B2 A0 D2 A0 B0 B1 B0 A0 D2 A0 B2 C1 C0 B0 D2 A0 C1 A0 C1 A0 B2 A0 C1 A0 C1 A0 D2 B0
D0 D2 A0 C1 A0 D2 A0 D2 A0 C1 A0 D2 D0
B0 D1 C1 A0 C1 A0 B2 A0 C1 A0 C1 D1 B0 C0 D1 D2 A0 B2 B1 B2 A0 D2 D1 C0
B0 D0 D2 C1 C1 C1 D2 D0 B0 B0 C0 D0 C0 B0
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 YY
FA Type No of FAs
A0 45
B0 20
B1 8
B2 16
C0 12
C1 32
D0 12
D1 8
(14)Core Loading Pattern for Cycle 2
FA ID
Previous Cycle Location
180° 270° 90° B0 K-15 E0 D2 E-07 E0 B0 F-15 D0
L-14 E0 E2 D2 B-06 E2
D2
P-06 E2 E0 D0 E-14 C1 M-12 D2 L-03 D1 D-03 C1 K-12 B0 B-12 B0 J-07 B0 P-12 C1 F-12 D1 M-03 D2 E-03 C1 D-12 D0 P-11 D2 C-11 E1 C1 E-05 E2 C1 P-07 D0 H-15 C1 B-07 E2 C1 K-06 E1 D2 N-11 D0 B-11 E0 D1 C-04 C1 F-06 D2 G-05 B2 J-13 C0 R-07 B1 H-07 C0 A-07 B2 G-13 D2 L-07 C1 L-05 D1 N-04 E0 B0 R-10 E2 C1 M-10 E2 B2 N-09 E2 B2 D-08 E2 B2 H-06 E2 B2 C-09 E2 C1 D-10 E2 B0 A-10 E0 D2 F-02 B0 M-02 C1 G-14 C0 G-15 B2 F-08 C0 N-13 C1 H-14 C0 C-13 B2 H-04 C0 J-15 C1 J-14 B0 D-02 D2 K-02 E0 D2 G-11 E2 B0 G-07 D0 R-08 B1 G-08 E2 C1 P-08 B1 C-08 C1 B-08 E2 B1 J-08 D0 A-08 B0 J-09 E2 D2 J-05 E0 D2 F-14 B0 M-14 C1 G-02 C0 G-01 B2 H-12 C0 N-03 C1 H-02 C0 C-03 B2 K-08 C0 J-01 C1 J-02 B0 D-14 D2 K-14 E0 B0 R-06 E2 C1 M-06 E2 B2 N-07 E2 B2 H-10 E2 B2 M-08 E2 B2 C-07 E2 C1 D-06 E2 B0 A-06 E0 D1 C-12 C1 E-11 D2 E-09 B2 J-03 C0 R-09 B1 H-09 C0 A-09 B2 G-03 D2 J-11 C1 K-10 D1 N-12 E0 D0 P-05 D2 C-05 E1 C1 F-10 E2 C1 P-09 D0 H-01 C1 B-09 E2 C1 L-11 E1 D2 N-05 D0 B-05 C1 M-04 D2 L-13 D1 D-13 C1 K-04 B0 B-04 B0 G-09 B0 P-04 C1 F-04 D1 M-13 D2 E-13 C1 D-04 D0
L-02 E0 E2 D2 B-10 E2
D2
P-10 E2 E0 D0 E-02 B0 D2 B0
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 YY Z-ZZ
FA Type No of FAs
(15)Core Loading Pattern for Cycle 3
FA ID
Previous Cycle Location
180° 270° 90° ° E0 L-14 F0 E2 H-02 F0 E0 E-14 E2
F-06 F1 F1 B0 R-06 F2
B0
A-06 F1 F1 E2 H-06 DS E2 K-14 E0 J-15 D2 M-13 F2 C1 N-13 F2 D2 D-13 E0 G-15 E2 F-14 DS E2 F-08 E2 P-10 F2 C0 G-05 E2 F-04 D0 M-14 C0 G-07 D0 D-14 E2 K-04 C0 J-05 F2 E2 B-10 E2 K-06 F1 E0 R-09 C0 E-07 F2 D2 G-02 F2 D2 H-01 F2 D2 J-02 F2 C0 L-07 E0 A-09 F1 E0 P-11 F1 D2 N-12 E2 D-06 D2 B-07 F2 D1 E-03 F2 D1 L-03 F2 D2 P-07 E2 M-06 D2 C-12 F1 E0 B-11 F0 B0 F-15 F2 D0 P-12 F2 D1 C-05 E1 M-12 D0 H-04 E1 D-12 D1 N-05 F2 D0 B-12 F2 B0 K-15 F0 E2 B-08 F2 C1 N-03 C0 G-09 D2 A-08 F2 D0 D-08 B1 H-03 D0 M-08 F2 D2 R-08 C0 J-07 C1 C-13 F2 E2 P-08 F0 B0 F-01 F2 D0 P-04 F2 D1 C-11 E1 M-04 D0 H-12 E1 D-04 D1 N-11 F2 D0 B-04 F2 B0 K-01 E0 E0 P-05 F1 D2 N-04 E2 D-10 D2 B-09 F2 D1 E-13 F2 D1 L-13 F2 D2 P-09 E2 M-10 D2 C-04 F1 E0 B-05 F1 E0 R-07 C0 E-09 F2 D2 G-14 F2 D2 H-15 F2 D2 J-14 F2 C0 L-09 E0 A-07 F1 E2 F-10 E2 P-06 F2 C0 G-11 E2 F-12 D0 M-02 C0 J-09 D0 D-02 E2 K-12 C0 J-11 F2 E2 B-06 E2 K-08 DS E2 K-02 E0 J-01 D2 M-03 F2 C1 C-03 F2 D2 D-03 E0 G-01 E2 F-02 DS E2
H-10 F1 F1 B0 R-10 F2
B0
A-10 F1 F1 E2 K-10 E0 L-02 F0 E2 H-14 F0 E0 E-02
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 YY Z-ZZ
FA Type No of FAs
B0 8 B1 1 C0 12 C1 4 D0 12 D1 8 D2 20 E0 16 E1 4 E2 28 DS 4
F0 81)
F1 16
F2 36
(16)Core Loading Pattern for Cycle 4
FA ID
Previous Cycle Location
180° 270° 90° F2 F-06 G0 F2 H-06 G0 F2 L-05 F1
L-14 G0 G1 D0 J-04 G2
D0
G-04 G1 G0 F1 E-14 F2 M-12 F0 A-09 E0 F-01 F2 E-09 G2 E2 N-04 G2 F2 L-09 E0 K-01 E0 R-09 F2 D-12 F1 P-11 F0 J-01 G2 E2 D-02 F1 F-02 F2 G-03 F2 H-02 F2 J-03 F1 K-02 E2 M-02 G2 F0 G-01 F1 B-11 G0 E0 A-06 E2 B-04 G2 E2 D-10 G2 E2 N-12 G2 E2 M-10 G2 E2 P-04 E0 R-06 G0 F2 E-05 G1 F2 J-05 F1 B-06 E2 K-04 E1 J-09 E0 E-03 G2 E0 L-03 E1 G-09 E2 F-04 F1 P-06 F2 G-05 G1 F2 K-06 G0 D0 D-09 G2 F2 C-07 G2 E0 C-05 DS C-03 E2 H-15 DS N-03 E0 N-05 G2 F2 N-07 G2 D0 M-09 G0 F2 F-08 G2 E2 D-03 F2 B-08 E2 M-03 G2 E2 R-08 B1 N-08 E2 A-08 G2 E2 D-13 F2 P-08 E2 M-13 G2 F2 K-08 G0 D0 D-07 G2 F2 C-09 G2 E0 C-11 DS C-13 E2 H-01 DS N-13 E0 N-11 G2 F2 N-09 G2 D0 M-07 G0 F2 F-10 G1 F2 J-11 F1 B-10 E2 K-12 E1 J-07 E0 E-13 G2 E0 L-13 E1 G-07 E2 F-12 F1 P-10 F2 G-11 G1 F2 L-11 G0 E0 A-10 E2 B-12 G2 E2 D-06 G2 E2 C-04 G2 E2 M-06 G2 E2 P-12 E0 R-10 G0 F1 P-05 F0 J-15 G2 E2 D-14 F1 F-14 F2 G-13 F2 H-14 F2 J-13 F1 K-14 E2 M-14 G2 F0 G-15 F1 B-05 F2 M-04 F0 A-07 E0 F-15 F2 E-07 G2 E2 C-12 G2 F2 L-07 E0 K-15 F0 R-07 F2 D-04 F1
L-02 G0 G1 D0 J-12 G2
D0
G-12 G1 G0 F1 E-02 F2
G0 F2 G0 F2
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 YY Z-ZZ
FA Type No of FAs
B1 11)
D0 8
E0 16
E1 4
E2 28
DS 4
F0 82)
F1 16
F2 36
G0 16
G1 8
G2 32
1) From Cycle 1
(17)Core Loading Pattern for Cycle 5
FA ID
Previous Cycle Location
180° 270° 90° ° G1 K-14 H0 DS J-09 H0 G1 F-14 G2
M-12 H0 H1 F2 F-01 H2
F2
K-01 H1 H0 G2 E-11 H0 G0 J-15 G2 C-09 G2 G-05 H2 F2 H-15 H2 G2 J-05 G2 N-09 G0 G-15 H0 G2 L-11 G0 R-09 H2 F2 K-13 G0 B-11 F1 B-12 G2 F-08 F1 P-12 G0 P-11 F2 F-13 H2 G0 A-09 G2 D-12 H0 G2 J-03 F2 N-10 H2 F1 D-10 H2 E2 K-11 H2 F1 M-10 H2 F2 C-10 G2 G-03 H0 G1 P-10 H1 G2 E-07 G0 L-02 F1 K-04 H2 F0 M-13 H1 F0 D-13 H2 F1 F-04 G0 E-02 G2 L-07 H1 G1 B-10 H0 F2 A-06 H2 F1 M-02 H2 F0 N-12 F2 N-13 G2 H-14 F2 C-13 F0 C-12 H2 F1 D-02 H2 F2 R-06 H0 DS J-07 H2 F2 R-08 G2 H-10 E2 L-06 H1 G2 P-08 B1 H-13 G2 B-08 H1 E2 E-10 G2 H-06 F2 A-08 H2 DS G-09 H0 F2 A-10 H2 F1 M-14 H2 F0 N-04 F2 N-03 G2 H-02 F2 C-03 F0 C-04 H2 F1 D-14 H2 F2 R-10 H0 G1 P-06 H1 G2 E-09 G0 L-14 F1 K-12 H2 E0 M-03 H1 F0 D-03 H2 F1 F-12 G0 E-14 G2 L-09 H1 G1 B-06 H0 G2 J-13 F2 N-06 H2 F1 D-06 H2 E2 F-05 H2 F1 M-06 H2 F2 C-06 G2 G-13 H0 G2 M-04 G0 R-07 H2 F2 K-03 G0 B-05 F1 B-04 G2 K-08 F1 P-04 G0 P-05 F2 F-03 H2 G0 A-07 G2 E-05 H0 G0 J-01 G2 C-07 G2 G-11 H2 F2 H-01 H2 G2 J-11 G2 N-07 G0 G-01 H0 G2
L-05 H0 H1 F2 F-15 H2
F2
K-15 H1 H0 G2 D-04 G1 K-02 H0 DS G-07 H0 G1 F-02
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 YY Z-ZZ
FA Type No of FAs
B1 11)
E2 4
DS 4
F0 82)
F1 16 F2 24 G0 16 G1 8 G2 32 H0 20 H1 12 H2 32
1) From Cycle 1
(18)Core Loading Pattern for Cycle 6
FA ID
Previous Cycle Location
180° 270° 90° G0 M-13 J0 H2 L-11 J0 G0 D-13 G2
H-12 J0 J1 G1 F-01 J2
G1
K-01 J1 J0 G2 G-08 J0 H0 E-02 H0 J-15 H1 F-02 J2 H2 H-02 J2 H1 K-02 H0 G-15 H0 L-02 J0 G2 H-09 H0 B-05 J2 H2 J-13 H2 E-09 G0 K-12 H0 C-03 G0 F-12 H2 L-09 H2 G-13 J2 H0 P-05 G2 D-08 J0 H0 R-09 H2 N-09 J2 G2 D-02 J1 H2 F-06 J1 G2 M-02 J2 H2 C-09 H0 A-09 J0 G0 N-12 J1 H1 B-06 H2 J-05 G2 B-04 H2 D-04 G2 E-03 J2 G2 L-03 H2 M-04 G2 P-04 H2 G-05 H1 P-06 J1 G0 C-12 J0 G1 A-06 J2 G0 M-10 J1 G2 C-05 J1 H1 H-06 J1 G2 N-05 J1 G0 D-10 J2 G1 R-06 J0 H2 L-05 J2 H2 B-08 H0 C-13 H2 F-10 J2 H1 F-08 G2 C-06 H1 K-08 J2 H2 K-06 H0 N-03 H2 P-08 J2 H2 E-11 J0 G1 A-10 J2 G0 M-06 J1 G2 C-11 J1 H1 H-10 J1 G2 N-11 J1 G0 D-06 J2 G1 R-10 J0 G0 N-04 J1 H1 B-10 H2 J-11 G2 B-12 H2 D-12 G2 E-13 J2 G2 L-13 H2 M-12 G2 P-12 H2 G-11 H1 P-10 J1 G0 C-04 J0 H0 R-07 H2 N-07 J2 G2 D-14 J1 H2 K-10 J1 G2 M-14 J2 H2 C-07 H0 A-07 J0 G2 M-08 H0 B-11 J2 H2 J-03 H2 E-07 G0 K-04 H0 N-13 G0 F-04 H2 L-07 H2 G-03 J2 H0 P-11 G2 H-07 J0 H0 E-14 H0 J-01 H1 F-14 J2 H2 H-14 J2 H1 K-14 H0 G-01 H0 L-14 J0 G2
J-08 J0 J1 G1 F-15 J2
G1
K-15 J1 J0 G2 H-04 G0
J0 H2 J0 G0
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 YY Z-ZZ
FA Type No of FAs
(19)Core Loading Pattern for Cycle 7
FA ID
Previous Cycle Location
180° 270° 90° ° H2 F-04 J0 J-15 H2 H-13 J0 G-15 H2 K-04 H1
K-13 K0 K6 K5 J2
H-10 K5 K6 K0 H1 F-13 H2 F-06 K1 J2 L-11 J0 B-11 F2 J-12 K2 F2 G-12 J0 P-11 J2 M-04 K1 H2 K-06 H1
N-10 K1 K6 H0 N-05 K4 J2 G-03 H2 H-15 J2 J-03 K4 H0
C-05 K6 K1 H1 C-10 K0 J2 D-04 H0 E-13 F2 H-04 J1 E-09 J1 K-14 J2 H-14 J1 F-14 J1 L-09 F2 M-08 H0 L-13 J2 E-11 K0 H2 D-06 K6 J0 L-02 K4 J1 J-05 K6 C1 G-04 K4 C1 J-04 K6 J1 G-05 K4 J0 E-02 K6 H2 M-06 J0 R-09 K5 F2 M-09 J2 C-07 J1 P-10 C1 D-07 J0 N-13 J1 G-07 J0 C-13 C1 M-07 J1 B-10 J2 N-07 F2 D-09 K5 J0 A-09 H2 N-08 J2 K-08 K2 H2 R-08 J2 P-08 K4 J1 G-09 D2 E-05 J1 J-07 K4 J2 B-08 H2 A-08 K2 J2 F-08 H2 C-08 J0 R-07 K5 F2 M-07 J2 C-09 J1 P-06 C1 D-09 J0 N-03 J1 J-09 J0 C-03 C1 M-09 J1 B-06 J2 N-09 F2 D-07 K5 J0 A-07 H2 D-10 K6 J0 L-14 K4 J1 J-11 K6 C1 G-12 K4 C1 J-12 K6 J1 G-11 K4 J0 E-14 K6 H2 M-10 K0 J2 L-05 H0 E-03 F2 D-08 J1 E-07 J1 K-02 J2 H-02 J1 F-02 J1 L-07 F2 H-12 H0 L-03 J2 M-12 K0 H1
N-06 K1 K6 H0 N-11 K4 J2 G-13 H2 H-01 J2 J-13 K4 H0
C-11 K6 K1 H1 C-06 H2 F-10 K1 J2 D-12 J0 B-05 F2 J-04 K2 F2 G-04 J0 P-05 J2 E-05 K1 H2 K-10 H1
K-03 K0 K6 K5 J2
H-06 K5 K6 K0 H1 F-03 H2 F-12 J0 J-01 H2 H-03 J0 G-01 H2 K-12
A B C D E F G H J K L M N P R
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 YY Z-ZZ
FA Type No of FAs
C1 81)
D2 11)
F2 122)
H0 8 H1 8 H2 20 J0 20 J1 20 J2 24 K0 8 K1 8 K2 4 K4 12 K5 8 K6 16
1) From Cycle 2 2) From Cycle 4
(20)L/P search initial screen
Select restart file and fuels
(21)Just after install ‐ End of cycle 6
(22)Shuffling
Press “Fix Core” then “Single Run” for quick check
Drag and drop between “Core” and “NEWFUEL” or “REFUEL”
• keep Checker board pattern
• keep Octant symmetry
Checker board pattern
- better for lowering peak power Fxy
(23)Cycle 7
(24)Cycle Depeletion
(25)(26)Reactivity coefficients
(27)Xenon transient
select a starting point (by EFPD) MAS_RST.YG3Q_0210.00
(28)Xenon oscillation
(29)Load follow simulation
find strategy to maneuver power level by controlling - control rod movement with automatic boron ppm, or - control boron pppm with automatic control rod
- fully withdrawn position is 381 cm.
when it is impossible to withdraw Execution stops !
- begin with boron search for accurate initialization Practice :
Find 0(100%) - (50%) – (50%) - (100%) cycle use boron search first to make accurate equillibrium
(30)3‐6‐3 ramp cycle
PDIL : power dependent insertion limit (to limit consequence of rod ejection accident) AO(axial offset) limit : to limit consequence of DNB, LOCA
Boron search only
(31)3‐6‐3 ramp cycle
Control rod position search only
PDIL violation Insertion limit
turn to ppm search until 75% power
Too large axial offset at full power
(32)Summary
e-CORSIM is convenient tool for training Nuclear Design - set up Loading pattern
- compute Feedback coefficients - check Xenon oscillation