Accurate critical slab calculations for various degrees of anisotropy and for different reflection coefficients
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N. G. Sjöstrand
Abstract
In order to check new calculation results on critical slabs, numerical calculations have been done with a discrete ordinates method. The critical thickness of reflected slabs with various degrees of anisotropic scattering has been determined. In general, the agreement with the new calculation results is good. However, for thin slabs the deviations may be larger than one per cent, so some of these cases were studied in more detail.
Kurzfassung
Um die Ergebnisse neuer Berechnungen für kritische Platten zu prüfen, wurden numerische Berechnungen mit einer Methode von diskreten Ordinaten durchgeführt. Die kritische Dicke reflektierender Platten wurde für verschiedene Grade anisotroper Streuung bestimmt. Im Allgemeinen stimmen die Resultate mit den Ergebnissen der neuen Berechnungen überein. Für dünne Platten können die Abweichungen allerdings 1% übersteigen. Darum wurden einige solcher Fälle im Einzelnen studiert.
References
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© 2010, Carl Hanser Verlag, München
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- European clearinghouse on nuclear power plants operational experience feedback
- Investigation on primary side oriented accident management measures in a hypothetical station blackout scenario for a VVER-1000 pressurized water reactor
- Heat transfer to the building structures of the Ignalina NPP accident localisation system
- Algorithmic determination of fuel rod cladding burst time at elevated temperatures
- Development of a decommissioning strategy for the MR research reactor
- Neutron transmutation doping conceptual design
- Design optimization of shell-and-tube heat exchangers using single objective and multiobjective particle swarm optimization
- Chebyshev polynomials expansion method for solving the one-dimensional transport equation in spherical geometry
- Heuristic geometric “eigenvalue universality” in a one-dimensional neutron transport problem with anisotropic scattering
- An analytical solution for the one-dimensional time-dependent SN transport equation for bounded and unbounded domains in cartesian geometry
- Accurate critical slab calculations for various degrees of anisotropy and for different reflection coefficients
- Technical Notes/Technische Mitteilungen
- The boundary problem in the 1D-CANDLE burn-up reactor
