trace code analysis results for tracy and silene benchmark phase ii
DESCRIPTION
TRACE Code Analysis Results for TRACY and SILENE Benchmark Phase II. LIEM Peng Hong and NAITO Yoshitaka NAIS Co., Inc. Japan OECD/NEA/NSC Working Party on Nuclear Criticality Safety Meeting of the Expert Group on Criticality Excursion Analysis Knoxville, Sept. 22, 2005. Analysis Conditions. - PowerPoint PPT PresentationTRANSCRIPT
TRACE Code Analysis Resultsfor TRACY and SILENE
Benchmark Phase II
LIEM Peng Hong and NAITO YoshitakaNAIS Co., Inc.
Japan
OECD/NEA/NSC Working Party on Nuclear Criticality SafetyMeeting of the Expert Group on Criticality Excursion Analysis
Knoxville, Sept. 22, 2005
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
2
Analysis Conditions
Kinetic Parameters SRAC cell calculation code + JENDL-3.3 library
(PIJ 107 group, ANISN 16 group) CITATION, TWOTRAN transport code (2-D,
annulus core cylindrical geometry, 16 group) Simplifications for TRACE
Annulus core to cylindrical core Linear ramp reactivity input
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
3
TRACY R61 Result(1)
1e+002
1e+003
1e+004
1e+005
1e+006
1e+007
1e+008
0 20 40 60 80 100
Fis
sio
n R
ate
(W
), T
ota
l F
issio
n (
J)
Time (s)
Fission RateTotal Fissionpower (exp.)
1e+005
1e+006
1e+007
1e+008
20 20.5 21 21.5 22
Fis
sio
n R
ate
(W
)
Time (s)
Fission Ratepower (exp.)
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
4
TRACY R61 Result(2)
-4.0
-2.0
0.0
2.0
4.0
0 20 40 60 80 100
Reactivity (
$)
Time (s)
additiontemp. feedbackvoid feedback
net
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
5
TRACY R61 Result(3)
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
0 20 40 60 80 100
Tem
pera
ture
(C
)
Time (s)
liquid (ave.)wall
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
6
TRACY R76 Result(1)
1e+002
1e+003
1e+004
1e+005
1e+006
1e+007
1e+008
60 80 100 120 140 160 180 200 220
Fis
sio
n R
ate
(W
), T
ota
l F
issio
n (
J)
Time (s)
Fission RateTotal Fissionpower (exp.)
1e+004
1e+005
1e+006
1e+007
1e+008
74 76 78 80 82 84
Fis
sio
n R
ate
(W
)
Time (s)
Fission Ratepower (exp.)
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
7
TRACY R76 Result(2)
-4.0
-2.0
0.0
2.0
4.0
60 80 100 120 140 160 180 200 220
Reactivity (
$)
Time (s)
additiontemp. feedbackvoid feedback
net
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
8
TRACY R76 Result(3)
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
60 80 100 120 140 160 180 200 220
Tem
pera
ture
(C
)
Time (s)
liquid (ave.)wall
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
9
TRACY R159 Result(1)
1e+001
1e+002
1e+003
1e+004
1e+005
1e+006
1e+007
1e+008
0 100 200 300 400 500 600 700
Fis
sio
n R
ate
(W
), T
ota
l F
issio
n (
J)
Time (s)
Fission RateTotal FissionPower (exp)
1e+001
1e+002
1e+003
1e+004
1e+005
1e+006
100 150 200 250 300
Fis
sio
n R
ate
(W
), T
ota
l F
issio
n (
J)
Time (s)
Fission RatePower (exp)
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
10
TRACY R159 Result(2)
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
0 100 200 300 400 500 600 700
Reactivity (
$)
Time (s)
additiontemp. feedbackvoid feedback
net
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
11
TRACY R159 Result(3)
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
0 100 200 300 400 500 600 700
Tem
pera
ture
(C
)
Time (s)
liquid (ave.)wall
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
12
SILENE LE1-641 Result(1)
1.0e+011
1.0e+012
1.0e+013
1.0e+014
1.0e+015
1.0e+016
1.0e+017
1.0e+018
0 20 40 60 80 100
Fis
sio
n R
ate
(fissio
ns/s
ec),
Tota
l F
issio
n (
fissio
ns)
Time (s)
Fission RateTotal Fission
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
13
SILENE LE1-641 Result(2)
-4.0
-2.0
0.0
2.0
4.0
0 20 40 60 80 100
Reactivity (
$)
Time (s)
additiontemp. feedbackvoid feedback
net
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
14
SILENE LE1-641 Result(3)
20.0
40.0
60.0
80.0
100.0
120.0
0 20 40 60 80 100
Tem
pera
ture
(C
)
Time (s)
liquid (ave.)wall
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
15
Results SummaryExperiment TRACY SILENE
Run Number R159 R61 R76 LE1-641
Max. Inverse Period (1/s) 0.18 35.7 13.6 21.0
First Peak Power (W) 1.02E+05 1.67E+07 4.42E+06 9.13E+05
Energy to First Peak (J) 1.78E+06 8.63E+05 6.20E+05 7.95E+04
First Peak Time (s) 193.5 20.6 76.0 11.3
Energy to First Min. (J) 4.12E+06 3.53E+06 4.23E+06 7.23E+05
First Min. Time (s) 227.6 38.0 91.7 18.0
Total Energy (J) 6.85E+06 1.07E+07 2.11E+07 2.98E+06
Final Temp. ( C) 45.8 52.4 74.1 81.3
Peak Pressure (Pa) 2.53E+04 2.78E+04 2.86E+04 5.38E+04
Peak Pressure Time (s) 219.5 39.6 93.8 19.0
Delayed Neut. Fract. 7.44E-03 7.35E-03 7.37E-03 7.48E-03
Prompt Neut. Lifetime (s) 4.51E-05 4.74E-05 4.88E-05 3.34E-05
Temp. React. Coef. (cent/C) -3.98 -3.11 -3.93 -4.03
Void React. Coef. (cent/%) -58.5 -57.0 -58.7 -88.1
OECD/NEA Expert Group on Criticality Excursion Analysis (Knoxville, 2005)
16
Future Works
Long-term simulation for SILENE LE1-641 Inclusion of heat removal effect (structural
materials and natural circulation of air) Some revision works for Benchmark Phase I