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Densification and Shape Change of Calcined High Level Waste During Hot-Isostatic Pressing
Publié en 2011
Hot Isostatic Pressing (HIP) has been selected as a means of treating calcined high level waste (HLW). The process combines high temperature and pressure to densify the HLW in to a mineral similar to the geologic formulation of granite.
This study uses COMSOL to predict densification and shape deformation of a stainless steel can filled with HLW. Two approaches were used to model densification during the HIP process including: development of a volumetric thermal change coefficient implemented through thermal expansion and the development of an ordinary differential equation to approximate densification mechanics.
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