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The Molten Salt Reactor Point-Kinetic Component of Neutron Noise in Two-Group Diffusion Theory

Victor Dykin (Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers)) ; Imre Pázsit (Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers))
Nuclear Technology (0029-5450). Vol. 193 (2016), 3, p. 404-415.
[Artikel, refereegranskad vetenskaplig]

The derivation of the point-kinetic component of the neutron noise in two-group diffusion theory in molten salt reactors (MSRs), based on different techniques, is discussed. First, the point-kinetic component is calculated by projecting the corresponding full space-frequency-dependent solution onto the static adjoint. Then, following the standard procedure in reactor physics, the point-kinetic solution is determined by solving the linearized point-kinetic equations. Both results are thereafter analyzed and compared quantitatively. Such a comparison clearly indicates that the solution obtained by the conventional derivation, i.e., from the point-kinetic equations, significantly differs from the exact one and is not able to reproduce certain features of the latter. Similar discrepancies between the two methods were also pointed out and confirmed earlier in one-group MSR calculations.

Nyckelord: Molten salt reactor; point-kinetic component; neutron noise; fluid-fuel systems; Nuclear Science & Technology

Denna post skapades 2016-04-29.
CPL Pubid: 235643


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Institutionen för fysik, Subatomär fysik och plasmafysik (Chalmers)



Chalmers infrastruktur