SCALE 6: Triton Depletion Crashing With More Than 1000 Generations

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Jan 7, 2013, 3:24:45 PM1/7/13

This topic has been migrated from the SCALE 6 notebook.

Date: Thu Oct 21 18:47:45 2010

Hello,

I am using TRITON (t6-depl currently) to deplete an assembly containing TRISO fuel. I had believed to have debugged the model successfully, but for a certain input combination I have a model that appears to work fine, but for one set of input parameters it runs fine, and for another if fails.

The parameters that it runs for are as follows:

read parameter

gen=350

npg=1000

nsk=35

htm=yes

nub=no

cfx=yes

end parameter

The parameters if fails for is as follows:

read parameter

gen=350

npg=5000

nsk=35

htm=yes

nub=no

cfx=yes

end parameter

I am running on WINDOWS (and will check whether it occurs with a LINUX install) and the error message is as follows:

"attempt to access nonexistant record, unit 90"

It appears the line of code is line 145 of direct_access_M.f90 called from rerite_I.f90 called from concupdate.f90 called from triton6.f90. Which leads me to believe this occurs during update of nuclide concentrations. Is there some input causing this difficulty? I have the input below.

'Input generated by GeeWiz SCALE 6.0.13.04 Compiled on January 4, 2010

=t6-depl parm=(centrm)

oakridge deep burn

v7-238

read composition

wtptuo2-4pct 1 10.176 3

8016 11.85

92235 3.526

92238 84.624

1 900 end

wtptth 2 9.6 2

90232 86.21

8016 13.79

1 900 end

zr 4 den=6.55 1 900 end

h2o 5 den=0.7 1 600 end

b 5 0 4.012417e-05 600 end

wtpttru 6 9.461 10

8016 10.78666

92235 0.001242

92238 0.17433

93237 4.40183

94238 2.669427

94239 51.85101

94240 19.60122

94241 3.235999

94242 5.89453

95241 1.383744

1 900 end

c-graphite 7 den=1.05 1 900 end

wtptsic 8 3.18 2

14000 70.05

6000 29.95

1 900 end

wtptsic 9 3.18 2

14000 70.05

6000 29.95

1 900 end

wtptipyc 10 1.9 2

6000 86.87672

1001 13.12328

1 900 end

wtptopyc 11 1.9 2

6000 86.87672

1001 13.12328

1 900 end

h2o 13 den=0.7 1 600 end

b 13 0 4.012417e-05 600 end

zr 14 den=6.55 1 900 end

c 16 0 0.0952621 900 end

c 17 0 0.0952621 900 end

end composition

read celldata

latticecell squarepitch fuelr=0.4095 1 gapr=0.417 0 cladr=0.475 4 hpitch=0.643 5 end

doublehet fuelmix=18 end

gfr=0.0175 6 coatr=0.0275 7 coatr=0.031 16 coatr=0.0345 9 coatr=0.0385 17 vf=0.33 matrix=8 end grain

rod

squarepitch fuelr=0.4095 cladr=0.475 14 hpitch=0.643 13 fuelh=381 right_bdy=white left_bdy=reflected end

end celldata

read depletion

-1 -6

end depletion

read burndata

power=44.44 burn=2 end

power=44.44 burn=10 end

power=44.44 burn=15 end

power=44.44 burn=30 end

power=44.44 burn=1045 nlib=26 end

end burndata

read model

read parameter

gen=350

npg=5000

nsk=35

htm=yes

nub=no

cfx=yes

end parameter

read geometry

global unit 1

com='assembly box'

cuboid 30 20.576 0 20.576 0 427.02 0

array 3 30 place 1 1 1 0.643 0.643 427.02

boundary 30

unit 2

com='fuel pin'

cylinder 1 0.418 0 -427.02

cylinder 2 0.475 0 -427.02

cuboid 3 0.643 -0.643 0.643 -0.643 0 -427.02

media 1 1 1 vol=234.2316

media 4 1 -1 2 vol=28.23685

media 5 1 3 -2 vol=50.38546

boundary 3

unit 4

com='water'

cylinder 2 0.418 0 -427.02

cylinder 3 0.475 0 -427.02

cuboid 4 0.643 -0.643 0.643 -0.643 0 -427.02

media 5 1 2 vol=234.2316

media 4 1 3 -2 vol=68.23685

media 5 1 4 -3 vol=50.38546

boundary 4

unit 5

com='sic-tru'

cylinder 1 0.418 0 -427.02

cylinder 2 0.475 0 -427.02

cuboid 3 0.643 -0.643 0.643 -0.643 0 -427.02

media 18 1 1 vol=234.2316

media 14 1 -1 2 vol=28.23685

media 13 1 3 -2 vol=50.38546

boundary 3

end geometry

read array

ara=2 nux=16 nuy=16 nuz=1 typ=square

com='config-b'

fill

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 5 4 4 5 2 2 2 2 5 4 4 5 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 5 5 2 2 2 2 2 2 2

2 2 2 2 2 2 5 4 4 5 2 2 2 2 2 2

2 2 2 2 2 2 2 5 5 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 5 4 4 5 2 2 2 2 5 4 4 5 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 end fill

ara=3 nux=16 nuy=16 nuz=1 typ=square

com='cfg-c'

fill

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 5 4 4 5 2 2 2 2 5 4 4 5 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 5 5 5 5 2 2 2 2 2 2

2 2 2 2 2 2 5 4 4 5 2 2 2 2 2 2

2 2 2 2 2 2 5 5 5 5 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 5 4 4 5 2 2 2 2 5 4 4 5 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 end fill

ara=4 nux=16 nuy=16 nuz=1 typ=square

com='cfg-d'

fill

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 5 5 2 5 2 2 5 2 5 5 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 4 4 2 5 2 2 5 2 4 4 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 5 5 2 5 2 2 5 2 5 5 2 5 2

2 2 2 2 2 2 2 4 4 2 2 2 2 2 2 2

2 5 2 5 5 2 5 2 2 5 2 5 5 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 4 4 2 5 2 2 5 2 4 4 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 5 5 2 5 2 2 5 2 5 5 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 end fill

ara=5 nux=16 nuy=16 nuz=1 typ=square

com='cfg-e'

fill

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 4 4 2 5 2 2 5 2 4 4 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 4 4 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 5 2 4 4 2 5 2 2 5 2 4 4 2 5 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 5 5 2 2 2 2 2 2 5 5 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 end fill

ara=1 nux=16 nuy=16 nuz=1 typ=square gbl=1

com='cfg-a'

fill

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 4 4 2 2 2 2 2 2 4 4 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 2 2 2 2 4 4 2 2 2 2 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 4 4 2 2 2 2 2 2 4 4 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 end fill

end array

read plot

scr=yes

ttl='plot2'

pic=mixtures

xul=-10.4

yul=10.4

zul=0

xlr=10.4

ylr=-10.4

zlr=0

nax=1000

clr=1 255 0 0

2 0 0 205

4 0 238 0

5 205 205 0

6 238 0 0

7 145 44 238

8 150 150 150

9 240 200 220

10 0 191 255

11 224 255 255

13 255 255 224

14 255 0 0

16 67 110 238

17 174 238 238

end color

uax=1 vdn=-1

end

end plot

read bnds

body=30

all=mirror

end bnds

read start

nst=0

xsm=0

xsp=0

ysm=0

ysp=0

zsm=0

zsp=0

end start

end data

end model

end

Thank you

John Lyons

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