3D BWR assembly transient example

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Revision as of 17:24, 15 March 2016 by Ville Valtavirta (Talk | contribs) (materials)

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Generating the steady state source distributions

% --- Asymmetric BWR assembly with Gd-pins -------------------

set title "Peach Bottom 2 from UAM, source generation "

include pins

include geometry

include materials

% --- Reflective boundary condition in XY:

set bc 2 2 1

% --- Neutron population and criticality cycles:

set pop 80000 1000000 200 1.0 100

% --- Geometry plots:

plot 3 1000 1000 0.0 
plot 3 1000 1000 0.0 -7.62 7.62 -7.62 7.62
plot 2 500 1500

% --- Total power for normalization:

set power 4.0000e+06

% --- Save source to "./source"-files

set savesrc "./source" 1.00 0.25 1 1 1

% --- Do not generate group constants

set gcu -1

% --- Do not use implicit capture, nxn, or fission

set impl 0 0 0

Time dependent simulation (no reactivity insertion)

% --- Asymmetric BWR assembly with Gd-pins -------------------

set title "Peach Bottom 2 from UAM, time dependent simulation"

include pins

include geometry

include materials

% --- Reflective boundary condition in XY:

set bc 2 2 1

% --- Increase size of precursor buffer

set pbuf 2

% --- Total power for normalization:

set power 4.0000e+06

% --- Set up time structures for simulation and detectors:

%     1 time interval for simulation (no population control)

tme simutime 2 1 0 1 % 

%     20 time bins for detector

tme dettime 2 20 0 1

% --- Neutron population:

% 10000 neutrons in 10 batches (1000 neutrons per batch)

set nps 4000000000 800000 simutime

set outp 10

% --- Link source (use point-wise precursor tracking)

set dynsrc "./source" 1

% --- Set up detectors
% --- Neutron population as a function of time

det 1 dr -15 void di dettime

% --- Fission energy deposition as a function of time

det 2 dr -8 void di dettime

% --- Do not generate group constants

set gcu -1

% --- Do not use implicit capture, nxn, or fission

set impl 0 0 0

Additional files

pins

% --- Empty lattice position:

pin 99
cool   

% --- Fuel pins 

pin 1
fuel4  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 2
fuel3  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 3
fuel3  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 4
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 5
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 6
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 7
fuel3  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 8
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 9
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 10
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 11
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 12
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 13
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 14
fuel5  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 15
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 16
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 17
fuel5  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 18
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 19
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 20
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 21
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 22
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 23
fuel5  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 24
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 25
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 26
fuel1  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 27
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

pin 28
fuel2  0.60579
void   0.62103
Zirc2  0.71501
cool

geometry

% --- Assembly lattice definition

lat 100 1  0.23876  0.23876 9 9 1.875
99 99 99 99 99 99 99 99 99
99  1  2  3  4  5  6  7 99
99  2  8  9 10 11 12 13 99
99  3  9 14 15 16 17 18 99
99  4 10 15 19 20 21 22 99
99  5 11 16 20 23 24 25 99
99  6 12 17 21 24 26 27 99
99  7 13 18 22 25 27 28 99
99 99 99 99 99 99 99 99 99 


% --- Outer channel (assembly pitch = 15.375):

surf  1  sqc   0.23876  0.23876      6.70306 % *
surf  2  sqc   0.23876  0.23876  6.90626

surf  4  pz -182.88 % Active stack length 365.76 cm
surf  5  pz  182.88 % Active stack length 365.76 cm

surf  9  cuboid  -7.62 7.62 -7.62 7.62 -250.0 250.0


% --- Cell definitions:

cell  3  101  fill 100  -1          % Pin lattice
cell  4  101  box        1          % Channel box wall

cell  5  0  fill 101   -2 4 -5      % assembly inside channel box outer wall
cell  6  0  moder       2 4 -5 -9   % Water outside channel box
cell  9  0  moder        -4    -9   % bottom reflector
cell 10  0  moder            5 -9   % top reflector

cell 99  0  outside             9   % Outside world

materials

% --- Fuel materials:

% Fuel1 2.93 wt % enrichment mat fuel1 -10.42 rgb 100 0 0 92235.09c -0.0258279 92238.09c -0.85567041 8016.09c -0.11850169

% Fuel2 1.94 wt % enrichment mat fuel2 -10.42 rgb 160 0 0 92235.09c -0.01710132 92238.09c -0.86441006 8016.09c -0.11848862

% Fuel3 1.69 wt % enrichment mat fuel3 -10.42 rgb 200 75 75 92235.09c -0.0148976 92238.09c -0.86661708 8016.09c -0.11848532

% Fuel4 1.33 wt % enrichment mat fuel4 -10.42 rgb 255 150 150 92235.09c -0.01172421 92238.09c -0.86979522 8016.09c -0.11848057

% --- Fuel with Gd:

% Fuel5 2.93 wt % enrichment, 3.0 wt% Gadcontent mat fuel5 -10.25 rgb 0 100 0 92235.09c -0.02505306 92238.09c -0.8300003 8016.09c -0.11891791 64152.09c -0.00005029 64154.09c -0.00055541 64155.09c -0.00379519 64156.09c -0.00528302 64157.09c -0.004065 64158.09c -0.00649317 64160.09c -0.00578667

% --- Zirc2 and channel box wall: % --- "Zircaloy-2" [PNNL-15870, Rev. 1]

mat Zirc2 -6.56000E+00 rgb 200 200 200 %*OK

8016.06c  -1.19376E-03
8017.06c  -4.83282E-07

24050.06c -4.16117E-05 24052.06c -8.34483E-04 24053.06c -9.64457E-05 24054.06c -2.44600E-05 26054.06c -5.62862E-05 26056.06c -9.16258E-04 26057.06c -2.15389E-05 26058.06c -2.91667E-06 28058.06c -3.35317E-04 28060.06c -1.33612E-04 28061.06c -5.90496E-06 28062.06c -1.91358E-05 28064.06c -5.03067E-06 40090.06c -4.98111E-01 40091.06c -1.09835E-01 40092.06c -1.69731E-01 40094.06c -1.75753E-01 40096.06c -2.89183E-02 50112.06c -1.27668E-04 50114.06c -8.84175E-05 50115.06c -4.59485E-05 50116.06c -1.98205E-03 50117.06c -1.05596E-03 50118.06c -3.35857E-03 50119.06c -1.20129E-03 50120.06c -4.59450E-03 50122.06c -6.63830E-04 50124.06c -8.43778E-04

% Assembly box treated as zircaloy mat box -6.56000E+00 tmp 557.0 rgb 200 200 200

8016.03c  -1.19376E-03
8017.03c  -4.83282E-07

24050.03c -4.16117E-05 24052.03c -8.34483E-04 24053.03c -9.64457E-05 24054.03c -2.44600E-05 26054.03c -5.62862E-05 26056.03c -9.16258E-04 26057.03c -2.15389E-05 26058.03c -2.91667E-06 28058.03c -3.35317E-04 28060.03c -1.33612E-04 28061.03c -5.90496E-06 28062.03c -1.91358E-05 28064.03c -5.03067E-06 40090.03c -4.98111E-01 40091.03c -1.09835E-01 40092.03c -1.69731E-01 40094.03c -1.75753E-01 40096.03c -2.89183E-02 50112.03c -1.27668E-04 50114.03c -8.84175E-05 50115.03c -4.59485E-05 50116.03c -1.98205E-03 50117.03c -1.05596E-03 50118.03c -3.35857E-03 50119.03c -1.20129E-03 50120.03c -4.59450E-03 50122.03c -6.63830E-04 50124.03c -8.43778E-04

% --- "Steel, Stainless 304" [PNNL-15870, Rev. 1]

mat ssteel -8.00000E+00 tmp 557.0 rgb 100 100 100

6012.03c  -3.95366E-04

14028.03c -4.59332E-03 14029.03c -2.41681E-04 14030.03c -1.64994E-04 15031.03c -2.30000E-04 16032.03c -1.42073E-04 16033.03c -1.15681E-06 16034.03c -6.75336E-06 16036.03c -1.68255E-08 24050.03c -7.93000E-03 24052.03c -1.59029E-01 24053.03c -1.83798E-02 24054.03c -4.66139E-03 25055.03c -1.00000E-02 26054.03c -3.96166E-02 26056.03c -6.44901E-01 26057.03c -1.51600E-02 26058.03c -2.05287E-03 28058.03c -6.21579E-02 28060.03c -2.47678E-02 28061.03c -1.09461E-03 28062.03c -3.54721E-03 28064.03c -9.32539E-04

% --- Coolant (40% void fraction):

mat cool -0.46072 moder lwtr 1001 tmp 557 rgb 150 150 255

1001.03c     0.66667
8016.03c     0.33333
5010.03c     0.0000575

% --- Moderator:

mat moder -0.46072 moder lwtr 1001 tmp 557 rgb 50 50 255

1001.03c     0.666667
8016.03c     0.333333
5010.03c     0.0000575 

% --- Thermal scattering data for light water:

%(HinH20 at 573.60K) therm lwtr lwj3.11t