Depletion calculations based on perturbations. Application to the study of a REP-like assembly at beginning of cycle with TRIPOLI-4

•Monte-Carlo burnup simulations are often used as reference calculations.•Monte-Carlo burnup simulations suffers however of prohibitive calculation times.•This paper proposes a method to accelerate Monte-Carlo burnup codes.•This method factorizes the transport steps using the correlated sampling met...

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Bibliographic Details
Published in:Annals of nuclear energy 2015-05, Vol.79, p.43-50
Main Authors: Dieudonné, Cyril, Dumonteil, Eric, Malvagi, Fausto, Diop, Cheikh
Format: Article
Language:English
Subjects:
Burnup/depletion calculation
Correlated sampling method
Monte-Carlo simulation
Neutronic
Perturbation
TRIPOLI-4
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Summary:•Monte-Carlo burnup simulations are often used as reference calculations.•Monte-Carlo burnup simulations suffers however of prohibitive calculation times.•This paper proposes a method to accelerate Monte-Carlo burnup codes.•This method factorizes the transport steps using the correlated sampling method. Monte-Carlo burnup calculations are nowadays the reference method to obtain fuel inventories in reactor configurations. Their main drawback is the very long computing time associated with the calculation. A method is presented here which attempts to speed up the calculation by replacing full simulations by perturbation calculations based on correlated sampling. The method is tested in a PWR assembly configuration and numerical results are given for the figure of merit. These results show that a speed-up of up to a factor of 5 can be achieved.
ISSN:0306-4549
1873-2100
DOI:10.1016/j.anucene.2014.12.020