Search found 73 matches

by Yousef1986
Tue Aug 09, 2016 2:50 pm
Forum: Input
Topic: Fission Yield Condensation
Replies: 2
Views: 6493

Fission Yield Condensation

Dear Jaakko, I am trying to condensate I-135, Xe-135, and Pm-149 fission yield to single energy group which is required by PARCS for Xe-135/Sm-149 concentration calculation. My question is: How Serpent condensate the previous fission yields into 2 energy group? I believe the way that is used to cond...
by Yousef1986
Fri Aug 05, 2016 5:20 pm
Forum: Users
Topic: Xenon calculation in SERPENT 2.1.26
Replies: 10
Views: 5531

Re: Xenon calculation in SERPENT 2.1.26

Check out the following graph: https://s31.postimg.org/vfq2kp4kr/Untitled.png As you can notice, as we move toward end of cycle the relative difference (between with 'set xenon 1' card and without) in Xe135 concentration increases. Generally speaking, is it advisable to include 'set xenon 1' card wh...
by Yousef1986
Wed Aug 03, 2016 12:24 pm
Forum: Users
Topic: Xenon calculation in SERPENT 2.1.26
Replies: 10
Views: 5531

Re: Xenon calculation in SERPENT 2.1.26

Hi Jaakko, As you can see below, I have made a comparison with and without Xenon card. The 1st burnup step is clear for me why do I have such a difference. And, I am not sure that whether the result between the two cases should be matching or not after the 1st burnup step. However, as you can see at...
by Yousef1986
Wed Aug 03, 2016 12:04 pm
Forum: Users
Topic: Initial Fissile Mass
Replies: 3
Views: 2074

Re: Initial Fissile Mass

So, for core simulator such as PARCS, the initial heavy metal density (g/cc) I believe should be calculated as follows: initial heavy metal density (g/cc) = Mass density of heavy metal (such as UO2) * (sum of mass fraction of all heavy isotopes) Where: "Mass density" is printed at .out file along wi...
by Yousef1986
Tue Aug 02, 2016 2:27 pm
Forum: Users
Topic: Xenon calculation in SERPENT 2.1.26
Replies: 10
Views: 5531

Re: Xenon calculation in SERPENT 2.1.26

Dear Jaakko, I tried to run two identical cases one with 'set xenon 1' card and another without that card. When comparing K_inf, I did not get the same results in both case and the differences was ~100 pcm. My question is the result between the two cases should not be similar? Which one should be us...
by Yousef1986
Tue Aug 02, 2016 11:14 am
Forum: Users
Topic: Initial Fissile Mass
Replies: 3
Views: 2074

Initial Fissile Mass

Dear all, What is the unit used in initial fissile mass "INI_FMASS" at _.res.m file? I have tried to sum up all masses of fissile materials from (.out file), and they did not equal to "INI_FMASS" value (not even a different in magnitude which may result in unit conversion). Does anyone know what is ...
by Yousef1986
Wed Jul 27, 2016 2:30 pm
Forum: Users
Topic: Material balance
Replies: 2
Views: 3389

Re: Material balance

Hi Margo,

There is a card called 'set inventory' which I believe what you want.

check the following link for more details: http://ttuki.vtt.fi/serpent/viewtopic.p ... b4ab#p6302
by Yousef1986
Wed Jul 27, 2016 1:01 pm
Forum: Users
Topic: Xenon calculation in SERPENT 2.1.26
Replies: 10
Views: 5531

Xenon calculation in SERPENT 2.1.26

Dear Jaakko, I have a question regarding depletion calculation, does serpent includes equilibrium xenon calculation automatically during burnup calculation? I mean is it necessary to include 'set xenon 1' card to activate equilibrium xenon calculation? For example, if I included 'set xenon 1' card, ...
by Yousef1986
Thu Jul 14, 2016 1:29 pm
Forum: Input
Topic: Batch Interval for group constant data
Replies: 4
Views: 9953

Re: Batch Interval for group constant data

Thanks Ville now it is working.
by Yousef1986
Mon Jul 11, 2016 3:49 pm
Forum: Input
Topic: Batch Interval for group constant data
Replies: 4
Views: 9953

Re: Batch Interval for group constant data

Sorry for my late feedback I have included (set micro -1) in my input file, then, I got the following message: Energy grid or pre-defined structure "-1" does not exist I tried with (set fum -1) and I got the same error message. What is the full syntax for set micro card? I did not find that card in ...