| 摘要 |
Systems and methods 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 for storing spent nuclear fuel having a low heat load comprising: a structure forming a cavity for receiving a canister of spent nuclear fuel, at least a portion of the cavity being below grade; and at least one ventilation duct forming a passageway from at or near the top of the cavity to an ambient atmosphere; wherein the cavity is hermetically sealed to ingress of below grade fluids. In another aspect, the invention is a method of storing a spent nuclear fuel having a low heat load in the system. Preferably, the cavity extends sufficiently below grade so that the entire canister is below grade during storage.
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