Abstract: A nuclear fuel arrangement in fuel pools for nuclear power plant is disclosed, which comprises: a plurality of nuclear fuel bundles, being arranged in a tight formation; a pool partition framework, formed with a plurality of grids for storing the plural nuclear fuel bundles; wherein the partition frame has a plurality of blocks of different heights disposed at the bottoms of their corresponding grids to be used for enabling any neighboring nuclear fuel bundles in the tight formation to be ruggedly arranged with different heights.

Abstract: A dry storage of nuclear fuel is disclosed, which comprises: a plurality of nuclear fuel bundles, being arranged in a tight formation; a dry storage canister, formed with a cavity inside to be used for storing the plural nuclear fuel bundles; wherein the cavity is formed with a plurality of blocks of different heights at the top and bottom thereof that each of the blocks on the top and bottom are provided for one of the plural nuclear fuel bundles to mounted fixedly thereon for enabling any neighboring nuclear fuel bundles in the tight formation to be ruggedly arranged with different heights.