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Abstract
Sieuwert de Zwaan, Jan Leen Kloosterman, and Gert van Uitert
Parametric study on a natural circulation cooled U-battery,
International Conference on the Physics of Reactors, "Nuclear Power: a Sustainable Resource" (PHYSOR-2008), Interlaken, Switzerland (2008).
A feasibility study has been performed on a natural circulation cooled small nuclear reactor with a molten salt or
tin as a coolant. This reactor is called the U-Battery. The study included neutronics calculations to obtain the
minimum dimensions required for a critical system during burnup, the calculation of coolant temperature and core
temperature reactivity coefficients, and an investigation of the thermal hydraulics to asses the possibilities for
natural circulation cooling. For every coolant, core designs are feasible within the dimensions imposed and with
natural circulation of the coolant.
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