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PERFORMANCE OF THE EXPLICIT EULER AND PREDICTOR-CORRECTOR-BASED COUPLING SCHEMES IN MONTE CARLO BURNUP CALCULATIONS OF FAST REACTORS
KTH, Skolan för teknikvetenskap (SCI), Fysik, Reaktorteknologi.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Reaktorteknologi.ORCID-id: 0000-0002-7943-7517
2015 (engelsk)Inngår i: Nuclear Technology, ISSN 0029-5450, E-ISSN 1943-7471, Vol. 191, nr 2, s. 193-198Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present a stability test of the explicit Euler and predictor-corrector based coupling schemes in Monte Carlo burnup calculations of the gas fast reactor fuel assembly. Previous studies have identified numerical instabilities of these coupling schemes in Monte Carlo burnup calculations of thermal-spectrum reactors due to spatial feedback induced neutron flux and nuclide density oscillations, where only sufficiently small time steps could guarantee acceptable precision. New results suggest that these instabilities are insignificant in fast-spectrum assembly burnup calculations, and the considered coupling schemes can therefore perform well in fast-spectrum reactor burnup calculations even with relatively large time steps. Note: Some figures in this technical note may be in color only in the electronic version.

sted, utgiver, år, opplag, sider
2015. Vol. 191, nr 2, s. 193-198
Emneord [en]
Monte Carlo, fast reactor, burn up calculations
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-173285ISI: 000359754800008Scopus ID: 2-s2.0-84942465735OAI: oai:DiVA.org:kth-173285DiVA, id: diva2:852579
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QC 20150909

Tilgjengelig fra: 2015-09-09 Laget: 2015-09-09 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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