Search found 23 matches

by satkinson
Tue Oct 16, 2018 6:28 pm
Forum: Users
Topic: Proper way to define LFP (Lumped Fission Product)
Replies: 3
Views: 1364

Re: Proper way to define LFP (Lumped Fission Product)

Hi Jaakko,

This is quite an old post, but is there now an option to define LFP for larger simulations?

Thanks
by satkinson
Wed Sep 21, 2016 6:55 pm
Forum: Input
Topic: Analog reaction rate estimates
Replies: 8
Views: 13629

Re: Analog reaction rate estimates

Hi Jaakko, When using the ARR's which have multiple region using the same nuclide is their listing in the ARR file as they appear in the geometry. I have a nested section in TRISO particles, so does this indicate that these are all grouped together in that universe. There should be three graphite re...
by satkinson
Thu Jul 21, 2016 1:03 pm
Forum: Input
Topic: Restart feature in 2.1.17
Replies: 29
Views: 34472

Re: Restart feature in 2.1.17

Hi Jaakko, I have tried these work around now and they get to the stage when they read the file, however the simulation causes a segmentation fault and crashes. The stages are; 0 : BU = 0.000 MWd/kgu, time = 0.00000E+00 days 1 : BU = 0.021 MWd/kgu, time = 1.00000E+00 days 2 : BU = 0.643 MWd/kgu, tim...
by satkinson
Fri Jul 08, 2016 11:39 am
Forum: Input
Topic: Restart feature in 2.1.17
Replies: 29
Views: 34472

Re: Restart feature in 2.1.17

Hi Jaakko,

This was found using 2.1.26.

Thanks for the work around.

Satkinson
by satkinson
Thu Jul 07, 2016 7:57 pm
Forum: Input
Topic: Restart feature in 2.1.17
Replies: 29
Views: 34472

Re: Restart feature in 2.1.17

Hi Jaakko, The restart feature seems to only work on bu's greater than 0.1 MWd/kgU. In this case restarting with 0.177 works, however 0.088 does not and it produces the error below. Restart file "restartfile" contains the following burnup points: 0 : BU = 0.000 MWd/kgu, time = 0.00000E+00 days 1 : B...
by satkinson
Mon Jun 20, 2016 1:18 pm
Forum: Input
Topic: Analog reaction rate estimates
Replies: 8
Views: 13629

Re: Analog reaction rate estimates

Hi Jaakko,

This is now working as intended.

Thanks

Satkinson
by satkinson
Wed Jun 15, 2016 2:05 pm
Forum: Input
Topic: Analog reaction rate estimates
Replies: 8
Views: 13629

Re: Analog reaction rate estimates

When you include set inventory or daystep the results no longer normalsie. When Trying to manually normalize the results by using tot_lossrate the results are often 5-10% lower to if normalized by removing these features. Is there a different procedure for normalizing ARR's?

Cheers
satkinson
by satkinson
Tue May 24, 2016 9:17 pm
Forum: Input
Topic: Cross section data
Replies: 13
Views: 17356

Re: Cross section data

You get this error by mistakenly having one of your .09c files in your materials as a .06c instead. All of the nuclide endings have to be the same in a material or this error is shown, maybe implement a user error if they are not all the same?
by satkinson
Tue May 24, 2016 3:42 pm
Forum: Input
Topic: Analog reaction rate estimates
Replies: 8
Views: 13629

Re: Analog reaction rate estimates

Hi Jaakko, Can you just confirm that Serpent does not produce/print endf 27 and that it is the sum of mt 18+ the sum of (102 to 117). Also I am interested in 201, the total production. Is there any way of calculating this with 51- to 91? There is little information in the reference regarding how man...
by satkinson
Fri Apr 01, 2016 11:54 am
Forum: Input
Topic: Irregular 3D geometries (CAD, etc.)
Replies: 41
Views: 66986

Re: Irregular 3D geometries (CAD, etc.)

Hi Ville, The simulation ran as expected and was providing reasonable results. The Volpower results were a bit odd though. I have 1 million fuel cells, these are produced as hexa and then split during the simulation. My Volpower output only had 13000 fuel cells produced any power in them, however th...