A horizontal, modular, dry, irradiated fuel storage system (10) includes a thin-walled canister (12) for containing irradiated fuel assemblies (20), which canister (12) can be positioned in a transfer cask (14) and transported in a horizontal manner from a fuel storage pool (18), to an intermediate-term storage facility. The storage system (10) includes a plurality of dry storage modules (26) which accept the canister (12) from the transfer cask (14) and provide for appropriate shielding about the canister (12). Each module (26) also provides for air cooling of the canister (12) to remove the decay heat of the irradiated fuel assemblies (20). The modules (26) can be interlocked so that each module (26) gains additional shielding from the next adjacent module (26). Hydraulic rams (30) are provided for inserting and removing the canisters (12) from the modules (26).

Horizontal modular dry irradiated fuel storage system

A storage and transport container for radioactive medical materials comprising a stainless steel shell with a central stainless steel well opening downwardly from the top of the container with a multiplicity of small diameter, generally U-shaped stainless steel tubes, one end of each such tube extending out of each side of the stainless steel shell, the bottom of the U-portion of each tube passing under the central well Where the container is substantially cylindrical, the well and stainless steel tubes may extend substantially through the length of the shell The wells of the containers are stoppered or sealed with a plug of radiation shielding material A novel handle structure for such containers comprises a vertical shaft connected to the container by a short open sleeve attached near the top of one side of the container so that the shaft may move upwardly and downwardly in the sleeve and rotate therein The top of the shaft has a horizontal handle extending therefrom and the opposite side of the bottom of the shaft has a pin extending outwardly therefrom, which pin is engageable with a locking groove in the sleeve which retains and orients the handle with respect to the container when the handle is in the raised position

Storage and transport containers for radioactive medical materials

A system and method for storing high level waste. In one aspect, the invention is a system comprising: an inner shell forming a cavity for receiving high level waste, the cavity having a top and a bottom; an outer shell surrounding the inner shell so as to form a space between the inner shell and the outer shell; at least one opening in the inner shell at or near the bottom of the cavity, the at least one opening forming a passageway from the space into the cavity; a Hd positioned atop the inner and outer shells, the lid having at least one inlet vent forming a passageway from an ambient atmosphere to the space and at least one outlet vent forming a passageway from the cavity to the ambient atmosphere. In another aspect, the invention is a method of using the system to store high level waste, especially in a below grade environment.

System and method of storing high level waste

A system and method for storing spent nuclear fuel below grade that affords adequate ventilation of the spent fuel storage cavity. In one aspect, the invention is a system comprising: a body having a cavity for receiving and storing a spent fuel canister, a major portion of the body positioned below grade; the body having at least one inlet ventilation duct extending from an above grade inlet to a below grade outlet in the cavity. The inlet ventilation duct can be a en elongated substantially S-shape extending from a side wall of the body to the bottom of the cavity. In another aspect, the invention is a method of storing a spent fuel canister using the system.

Underground system and apparatus for storing spent nuclear fuel

Apparatus for supporting radioactive fuel assemblies, such as spent nuclear fuel In one aspect, the invention is an apparatus, which can be in the form of a fuel basket, fuel rack, or the like, in which hexagonal storage tubes are used not only for their internal cells but are also strategically patterned to create resultant cells with their outside surfaces In another aspect, the invention is an apparatus having flux traps surrounding each cell wherein the size of the flux traps decrease with distance from the center of the storage grid

Apparatus for supporting radioactive fuel assemblies and methods of manufacturing the same

A transitory or temporary storage for highly radioactive waste, in which the transitory storage incorporates containers for the receipt of the waste, and a cooling system for the discharge of the heat which is produced during the storage of the waste. The cooling system incorporates a cooling air duct, as well as a coolant circuit for a coolant which is conveyed in a closed circuit between coolant conduits which conduct off heat generated in the storage space and a heat sink arranged externally of the storage space.

Transitory storage for highly-radioactive wastes

Fur ein Ubergansglager fur hochradioaktiven Abfall ist zur Netzung der Warme des Abfalls ein redundantes Kuhl- , system vorgesehen. For a Ubergansglager for high-level radioactive waste for wetting the heat of the waste is a redundant cooling, system is provided. Im Ubergangslager sind Behalter zur Aufnahme des . In the intermediate storage tanks are designed for receiving the. Abfalls untergebracht, dessen Warme, die bei der Lagerung des Abfalls entsteht, abzufuhren ist. Waste accommodated, the heat generated during the storage of the waste is to be removed. Zur Kuhlung dient neben Kuhlluft ein weiteres Kuhlmedium, das im Kreislauf zwischen Kuhlmittelleitungen, die den Lagerraum durchziehen, und einer auserhalb des Lagerraums angeordneten Warmesenke gefuhrt ist. For cooling, a further cooling medium which is circulated between coolant pipes that run through the storage space and a storage space arranged outside the heat sink is used in addition to cooling air. Um bei sicherem Einschlus des Abfalls neben einer Nutzung der entstehenden Warme im Betriebsfall auch eine gleichmasige Warmeabfuhr bei erforderlicher Notkuhlung des Lagers zu gewahrleisten, ist im Lagerraum ein Lagerbehalter eingesetzt, der zum Einfullen des Abfalls geeignete Lagerschachte aufweist. In order to ensure a uniform heat dissipation at the required emergency cooling of the bearing for safe containment of the waste in addition to a recovery of the heat in the operating case, in the storage room, a storage container is used which has suitable storage shafts for filling of the waste. Die Lagerschachte sind von den Kuhlmitteleitungen des Kuhlmediums umschlossen. The storage racks are enclosed by the coolant pipes of the cooling medium. Zusatzlich ist der Lagerbehalter zur Fuhrung der Kuhlluft von einem Kuhlmantel umgeben, dessen Kuhlluftkanale zur auseren Wandflache des Lagerbehalters hin offen sind. In addition, the storage tank for guiding the cooling air is surrounded by a cooling jacket, the cooling air ducts to the outer wall surface of the storage tank are open. Der Lagerbehalter kann zB aus Stahl oder Beton ausgefuhrt sein. The storage container may for example be made of steel or concrete.

Temporary storage space for highly radioactive waste material

Fur ein Ubergansglager fur hochradioaktiven Abfall ist zur Netzung der Warme des Abfalls ein redundantes Kuhl- , system vorgesehen. Im Ubergangslager sind Behalter zur Aufnahme des . Abfalls untergebracht, dessen Warme, die bei der Lagerung des Abfalls entsteht, abzufuhren ist. Zur Kuhlung dient neben Kuhlluft ein weiteres Kuhlmedium, das im Kreislauf zwischen Kuhlmittelleitungen, die den Lagerraum durchziehen, und einer auserhalb des Lagerraums angeordneten Warmesenke gefuhrt ist. Um bei sicherem Einschlus des Abfalls neben einer Nutzung der entstehenden Warme im Betriebsfall auch eine gleichmasige Warmeabfuhr bei erforderlicher Notkuhlung des Lagers zu gewahrleisten, ist im Lagerraum ein Lagerbehalter eingesetzt, der zum Einfullen des Abfalls geeignete Lagerschachte aufweist. Die Lagerschachte sind von den Kuhlmitteleitungen des Kuhlmediums umschlossen. Zusatzlich ist der Lagerbehalter zur Fuhrung der Kuhlluft von einem Kuhlmantel umgeben, dessen Kuhlluftkanale zur auseren Wandflache des Lagerbehalters hin offen sind. Der Lagerbehalter kann z.B. aus Stahl oder Beton ausgefuhrt sein.

Ulrich Jaroni

Papers

Transitory storage for highly-radioactive wastes

Temporary storage space for highly radioactive waste material

Übergangslager für hochradioaktiven Abfall