Korea Atomic Energy Research Institute

Korea Hydro Nuclear Power Co., Ltd.

Chun Tae Hyun

Dong Seok Oh

Shin Chang Hwan

Song Kun Woo

Yang Yong Sik

Lee Young Ho

Bang Je Geon

In Wang Kee

Kim Hyung Kyu

Song Kee Nam

A lower and upper end plugs of an annular fuel rod, into and out of which cooling water flows, comprises: a lower end plug including a filter for debris which has a plurality of pins intersecting each other at the proper position of an inner channel main inlet, through-holes into which the pins of the debris filter are fitted, and at least one inner channel auxiliary inlet through which the cooling water flows into a lower inner channel thereof when the inner channel main inlet is blocked by debris, and which has a through-hole shape; and an upper end plug including at least one upper handling groove and hole, into which a fuel rod handling tool is coupled, at a proper position of an inner circumference of the inner channel main outlet in a circumferential direction.

Lower and upper end plugs of an annular fuel rod

Growing community of inventors

Daejeon-si, South Korea

Chun Tae Hyun