Simulation of Oxidation in HTR-10 Core

The oxidation behavior of graphite matrix in fuel element was investigated based on the reasonable simplification to the HTR-10 core.The gasification by steam and the combined effect by steam and oxygen were studied independently.The results showed that the gasification of fuel graphite matrix by steam was uniform and mainly occurred at the bottom where the temperature was high in the mean residency time of fuel element,while the corrosion by oxygen and steam was violent and the surface of graphite matrix was removed.