Method of determining performance of a toroidal fuel element structure

Abstract

Embodiments of the present application relate to a reactor fuel element and assembly thereof, in particular to a method for determining the performance of a ring-shaped fuel element structure, the method comprising: determining the size parameters, heat flow, coolant flow, heat flow distribution and coolant flow distribution of the ring-shaped fuel element; simulating the ring-shaped fuel element as two rod-shaped fuel elements; determining the cross-sectional area ratio and size parameters of the fuel pellets of the rod-shaped fuel elements; determining the heat flow and coolant flow of the rod-shaped fuel elements according to the heat flow distribution, coolant flow distribution and size parameters of the rod-shaped fuel elements, and determining the performance of the rod-shaped fuel elements, and further determining the performance of the ring-shaped fuel element structure. The method provided by the embodiments of the present application can realize the analysis of the performance of the ring-shaped fuel element by simulating the performance of the ring-shaped fuel element as the performance of the rod-shaped fuel element, and by carrying out calculation and analysis on the performance of the simulated rod-shaped fuel element, which is beneficial to the in-reactor safety review of the ring-shaped fuel element.

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