LATEST INNOVATIVE PACKAGING TYPE B CONCEPTS DEVELOPED BY CEA AND TN INTERNATIONAL FOR FRESH/IRRADIATED FUEL AND WASTE TRANSPORTATION.

Looking for the renewal of the Cask Fleet for CEA for R&D applications and Reactors needs, CEA and TN International have jointly developed new concepts of packaging type B according to IAEA 96 regulation using: - Double containment barrier for Fresh/irradiated Fuels transportation. - Simplified concept for on site multi-content transports. This paper describes the key design aspects of the following third new concepts. FS110: This cask will comply with the following key requirements - Intermediate storage for Fresh fuels on manufacturing plant, 200 casks foreseen. - Transport by batch of Fresh fuel between manufacturing plant and Reactors. In order to reach the previous requirements, the design has been made in separating the function of intermediate storage from the function of transport, using a double containment barrier with: - One Inner pack designed for stacking with seismic accelerations. 200 Inner packs will be manufactured. - One over pack for transportation on road by batch between facilities. 20 Over packs are sufficient for cover the transport’s needs. IR 800: This cask has been designed for: - Spent fuels from French navy needs - Unloading under water of fuel at the pool. - Capacity of half core transportation (8 Fuels Assemblies/cask) - Weight of the loading transport system less than 40 Tons in order to reach the European regulation for legal weight transport. The design of the concept is based on a double containment barrier in order to transport the 8 enriched used fuel assemblies within the 40 tons for the loading transport system. Multi-content shell for on site transportation: - On site transport of older casks which no more meet the transport regulation (leak tightness and mechanical behavior). - On site transport for waste (Concrete or not drums, radiolysis waste with low level of irradiation) - Low weight of empty shell, yet type B package. The package has been designed in maximizing the inner volume: - Weight capacity of 6 tons for a weight of empty packaging of 3 tons. - Strict limitation of type of materials used for manufacturing (essentially stainless steel and phenolic foam) - Easy use on facilities (short opening and closing time) - Easy decontamination - Few maintenance operations These innovative new concepts have a high potential of use according to the needs of nuclear facilities, reactors or plants in the world. After manufacturing, these casks will joint the common fleet between CEA and TN International in order to offer to the customers, the possibility to rent this fleet for their own business, therefore decreasing designing and cask operating costs.