Development and test of a novel verification scheme applied to the neutronic modelling of Molten Salt Reactors

Demaziere, Christophe, 1973 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Mylonakis, Antonios, 1987 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Vinai, Paolo, 1975 (författare): Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

Elsevier BV, 2022
2022
Engelska.
Ingår i: Annals of Nuclear Energy. - : Elsevier BV. - 0306-4549 .- 1873-2100. ; 167

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Abstract Ämnesord

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This paper presents the extension of a method to verify transient neutron transport solvers earlier developed for reactors with non-moving fuel, to the case of Molten Salt Reactors (MSRs). This method is based on the extraction of the point-kinetic response of a nuclear reactor excited by a mono-chromatic perturbation and on its subsequent comparison with its expected functional dependence. Whereas a simple expression for this dependence exists for systems with fixed fuel, this is not the case for MSRs, as highlighted in many past studies. A workaround is nevertheless proposed in this work, thus giving the possibility to use a similar verification method to the case of MSRs. The method is applied to a simple dynamic MSR solver, demonstrating the capabilities of the technique. Contrary to other verification methods for which the system has to be simplified so that analytical solutions can be derived, the present method can be applied to any heterogeneous system.

Av författaren/redakt...: Demaziere, Chris ...; Mylonakis, Anton ...; Vinai, Paolo, 19 ...

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