Criticality prevention. Evaluation of a dry general storage of fuel elements of the plate type (U at 90% in U235)

This work describes a fuel elements storage, of the plate type, in modules, which permits a high grade of intrinsic security and a high storage capacity through the set of modules, isolated among them by neutronic screens. The system proposed is evaluated by different techniques, including the use of a Monte Carlo code applied to criticality prevention problems for transport storage and process of the fissile material. The relevant aspects of the analyzed system is summarized and considerations on the constructive aspects of significative influence are made. (Author)