Nuclear fuel element
AssigneeDoryokuro Kakunenryo Kaihatsu Jigyodan
InventorsKiyozumi Hayashi, Kazushige Domoto
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Abstract
A nuclear fuel element is provided which comprises a cladding tube having end plugs for sealing ends of the cladding tube and a multiplicity of fuel pellets stacked within the cladding tube. Each of the fuel pellets has a substantially cylindrical external lateral surface and a plurality of longitudinal recesses having rounded root portions on the external lateral surface, and has a height within the range from 1/2 to 1/3 of the outer diameter thereof. These fuel pellets with the floral petal shape are stacked in such a manner that the recesses of one pellet are not aligned with the recesses of adjacent upper and/or lower pellets.
Claims5
A nuclear fuel element comprising:
- a cladding tube having end plugs for sealing the ends of said tube;
- and
- a multiplicity of fuel pellets stacked within the cladding tube;
- each of said fuel pellets having a substantially cylindrical external lateral surface and a plurality of longitudinal recesses having rounded root portions on the external lateral surface, a height of each pellet ranging from 1/2 to 1/3 of the outer diameter thereof,
- the fuel pellets being stacked in such a manner that the recesses of one pellet are not aligned with the recesses of adjacent upper and/or lower pellets.
Dependencies are inferred from the claim text.