STANDARDIZED DOE SPENT NUCLEAR FUEL CANISTER ANDTRANSPORTATION SYSTEM FOR SHIPMENT TO THE NATIONAL REPOSITORY

摘要

In accordance with the provisions of a Memorandum of Agreement between DOE’s Office ofCivilian Radioactive Waste Management (OCRWM) and DOE’s Office of EnvironmentalManagement (EM), the NSNFP has been tasked with the responsibility to devise, design, anddevelop, as necessary standardized canisters and an optimized transportation system for shippingthe standardized canisters or bare SNF. This presentation describes the standardized canistersand the transportation system that is being developed for the safe handing, storage, andtransportation of DOE SNF to the national repository.The standardized canister sizes were derived from the national repository waste package designfor co-disposal of SNF with high-level waste (HLW). One SNF canister can be placed in thecenter of the waste package or one can be placed in one of five radial positions, replacing a HLWcanister. The internal cavity of the transportation cask was derived using the same logic,matching the size of the internal cavity of the waste package. The size of the internal cavity forthe transportation cask allows the shipment of multiple canister configurations with theapplication of a removable basket design. The standardized canisters have been designed to beloaded with DOE SNF, placed into interim storage, shipped to the national repository, and placedin a waste package without having to be reopened. Significant testing has been completed thatclearly demonstrates that the standardized canisters can safely achieve their intended designgoals. The transportation cask system will include all of the standard design features, with theaddition of dual containment for the shipment of failed fuel. The transportation cask system willalso meet the rigorous licensing requirements of the Nuclear Regulatory Commission (NRC) toensure that the design and the methods of fabrication employed will result in a shipping cask thatwill safely contain the radioactive materials under all credible accident scenarios.The standardization of the SNF canisters and the versatile design of the transportation casksystem will eliminate a proliferation of designs and simplify the operations at the user sites andthe national repository.