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Time step length versus efficiency of Monte Carlo burnup calculations
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.ORCID iD: 0000-0002-7943-7517
2014 (English)In: Annals of Nuclear Energy, ISSN 0306-4549, E-ISSN 1873-2100, Vol. 72, 409-412 p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate that efficiency of Monte Carlo burnup calculations can be largely affected by the selected time step length. This study employs the stochastic implicit Euler based coupling scheme for Monte Carlo burnup calculations that performs a number of inner iteration steps within each time step. In a series of calculations, we vary the time step length and the number of inner iteration steps; the results suggest that Monte Carlo burnup calculations get more efficient as the time step length is reduced. More time steps must be simulated as they get shorter; however, this is more than compensated by the decrease in computing cost per time step needed for achieving a certain accuracy.

Place, publisher, year, edition, pages
2014. Vol. 72, 409-412 p.
Keyword [en]
Monte Carlo burnup, Efficiency, Coupling schemes, Implicit Euler
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-150896DOI: 10.1016/j.anucene.2014.06.019ISI: 000340314000041ScopusID: 2-s2.0-84903648200OAI: diva2:746837

QC 20140915

Available from: 2014-09-15 Created: 2014-09-11 Last updated: 2014-09-15Bibliographically approved

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Dufek, Jan
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