BEMUSE PHASE II: BEMUSE PHASE II: COMPARISON AND ANALYSIS COMPARISON AND ANALYSIS OF THE RESULTS OF THE RESULTS REV. 1 REV. 1 A. Petruzzi , F. D’Auria DIPARTIMENTO DI INGEGNERIA MECCANICA, NUCLEARE E DELLA PRODUZIONE - UNIVERSITA' DI PISA 56100 PISA - ITALY Workshop on Evaluation of Uncertainties In Relation To Severe Accidents and Level 2 Probabilistic Safety Analysis November 7 – 9, 2005 – Aix-En-Provence, (FRANCE)
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BEMUSE PHASE II:BEMUSE PHASE II:COMPARISON AND ANALYSISCOMPARISON AND ANALYSIS
OF THE RESULTSOF THE RESULTSREV. 1REV. 1
A. Petruzzi, F. D’Auria
DIPARTIMENTO DI INGEGNERIA MECCANICA, NUCLEARE E DELLA PRODUZIONE -UNIVERSITA' DI PISA56100 PISA - ITALY
Workshop on Evaluation of Uncertainties In Relation To Severe Accidents and Level 2 Probabilistic Safety Analysis
A) Nodalization development;B) Interpreting the supplied (or the available) information, usually
incomplete;C) Accepting the steady state performance of the nodalization;D) Interpreting transient results, planning and performing sensitivity studies,
modifying the nodalisation and finally achieving “a reference” or “an acceptable” solution.
• Items A) and B) can be connected with the ‘global acceptabilityfactor for the nodalization development’, QA;
•The ‘global acceptability factor for the nodalization qualification at steady state level’, QB, deals with item C);
•The activities at item D) can be summarized trough the single average accuracy values (AA, and particularly AAP-1) and by the global average accuracy value (AATOT).
USER’S EFFECTUSER’S EFFECT
37/50
0.30
0.59
0.08
0.69
0.19
0.66
0.01
0.16
0.01
0.27
0.53
0.59
0.54
0.75
0.19
0.01
0.48
0.000.02
0.15
0.45
0.07
0.00
0.33
0.05
0.48
0.02 0.00
0.36
0.25
0.310.270.310.26
0.280.270.280.30
0.23
0.38
0.28
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10C
EA [C
25]
IRSN
[C25
]
NR
I-2
[A20
]
GR
S [A
12]
KFK
I [A
20]
UPI
[R5]
NR
I-1
[R5]
UPC
[R5]
KIN
S [R
5]
TAEK
[R5]
PSI [
TR4]
EDO
[T97
]
JNES
[TM
55]
KA
ERI [
M23
]
Organization's Name
Glo
bal A
ccep
tabi
lity
Fact
ors &
AA
TO
T
QaQb(AA)tot
1.44Qa , Qb
(AA)tot
SENSITIVITY STUDYSENSITIVITY STUDY
38/50
SENSITIVITY STUDYSENSITIVITY STUDY
39/50
SENSITIVITY STUDYSENSITIVITY STUDYComparison of the Results (Time Trends)
40/50
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55]
KAERI [M23]
KFKI [A20]
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°1: Break Area
Pres
sure
(MPa
)
UPPER PLENUM PRESSURE
0.0
20.0
40.0
60.0
80.0
100.0
120.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55]
KAERI [M23]
KFKI [A20]
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°1: Break Area
Mas
s Inv
ento
ry (%
)
PRIMARY SYSTEM MASS INVENTORY
300.0
400.0
500.0
600.0
700.0
800.0
900.0
1000.0
1100.0
1200.0
1300.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55]
KAERI [M23]
KFKI [A20]
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°1: Break Area
Tem
pera
ture
(K
)
HOTTEST ROD SURFACE TEMPERATURE
SENSITIVITY STUDYSENSITIVITY STUDYComparison of the Results (Time Trends)
41/50
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55] (NOT PERFORMED)
KAERI [M23]
KFKI [A20] (NOT PERFORMED)
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°3: Gap Thickness
Pres
sure
(MPa
)
UPPER PLENUM PRESSURE
0.0
20.0
40.0
60.0
80.0
100.0
120.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55] (NOT PERFORMED)
KAERI [M23]
KFKI [A20] (NOT PERFORMED)
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°3: Gap Thickness
Mas
s Inv
ento
ry (%
)
PRIMARY SYSTEM MASS INVENTORY
300.0
500.0
700.0
900.0
1100.0
1300.0
1500.0
1700.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55] (NOT PERFORMED)
KAERI [M23]
KFKI [A20] (NOT PERFORMED)
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°3: Gap Thickness
Tem
pera
ture
(K
)
HOTTEST ROD SURFACE TEMPERATURE
SENSITIVITY STUDYSENSITIVITY STUDYComparison of the Results (Time Trends)
42/50
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55] (NOT PERFORMED)
KAERI [M23]
KFKI [A20] (NOT PERFORMED)
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°5: Fuel Conductivity
Pres
sure
(MPa
)
UPPER PLENUM PRESSURE
0.0
20.0
40.0
60.0
80.0
100.0
120.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55] (NOT PERFORMED)
KAERI [M23]
KFKI [A20] (NOT PERFORMED)
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°5: Fuel Conductivity
Mas
s Inv
ento
ry (%
)
PRIMARY SYSTEM MASS INVENTORY
300.0
500.0
700.0
900.0
1100.0
1300.0
1500.0
1700.0
1900.0
2100.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55] (NOT PERFORMED)
KAERI [M23]
KFKI [A20] (NOT PERFORMED)
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°5: Fuel Conductivity
Tem
pera
ture
(K
)
HOTTEST ROD SURFACE TEMPERATURE
SENSITIVITY STUDYSENSITIVITY STUDYComparison of the Results (Time Trends)
43/50
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55]
KAERI [M23]
KFKI [A20]
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°10: Maximum Linear Power
Pres
sure
(MPa
)
UPPER PLENUM PRESSURE
0.0
20.0
40.0
60.0
80.0
100.0
120.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55]
KAERI [M23]
KFKI [A20]
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°10: Maximum Linear Power
Mas
s Inv
ento
ry (%
)
PRIMARY SYSTEM MASS INVENTORY
300.0
500.0
700.0
900.0
1100.0
1300.0
1500.0
1700.0
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00
Time (s)
CEA [C25]
EDOGIDRO [T97]
GRS [A12]
IRSN [C25]
JNES [TM55]
KAERI [M23]
KFKI [A20]
KINS [R5]
NRI-1 [R5]
NRI-2 [A20]
PSI [TR4]
TAEK [R5]
UPC [R5]
UPI [R5]
SENSITIVITY N°10: Maximum Linear Power
Tem
pera
ture
(K
)
HOTTEST ROD SURFACE TEMPERATURE
SENSITIVITY STUDYSENSITIVITY STUDYDPCT and DTREFLOOD: RESULTS of Sensitivities
44/50
SENSITIVITY STUDYSENSITIVITY STUDYDPCT Dispersion for Sensitivity Parameter
45/50
-300.0
-200.0
-100.0
0.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0C
EA [C
25]
IRSN
[C25
]
NR
I-2
[A20
]
GR
S [A
12]
KFK
I [A
20]
UPI
[R5]
NR
I-1
[R5]
UPC
[R5]
KIN
S [R
5]
TAEK
[R5]
PSI [
TR4]
EDO
[T97
]
JNES
[TM
55]
KA
ERI [
M23
]Participant's IDs
DPC
T (K
)
Break Area
Gap Conductivity
Gap Thickness
Presence of Crud
Fuel Conductivity
Core Pressure Drop
CCFL
Decay Power
Time of Scram
Max Linear Power
Accumulator Pressure
Accumulator Liquid Mass
Pressurizer Level
HPIS Failure
LPIS injection Time
SENSITIVITY STUDYSENSITIVITY STUDYDPCT Dispersion for Participants