公开(公告)号：KR100756440B1

公开(公告)日：2007-09-07

申请号：KR1020060025291

申请日：2006-03-20

Applicant: 한국과학기술원

Inventor： 조남진 ,  윤성환 ,  유휘

IPC: G21C3/02

CPC classification number: Y02E30/40

Abstract: A nuclear fuel pebble having a shell-type fuel zone for a high temperature gas cooling reactor is provided to increase a temperature safety margin by changing a distribution structure of particle nuclear fuel inside the pebble. A nuclear fuel pebble having a shell-type fuel zone for a high temperature gas cooling reactor includes a central unit(21), a middle shell(22), and an outer shell(23). The central unit(21) is composed of a graphite matrix where particle nuclear fuel(24) is not distributed. The middle shell(22) forms a nuclear fuel area having the particle nuclear fuel. The outer shell(23) is composed of a graphite matrix where the particle nuclear fuel is randomly distributed, and embraces both central unit(21) and the middle shell(22).

Abstract translation: 提供一种具有用于高温气体冷却反应器的壳型燃料区的核燃料卵石，以通过改变粒子核燃料在卵石内的分布结构来提高温度安全裕度。 具有用于高温气体冷却反应器的壳型燃料区的核燃料卵石包括中央单元（21），中间壳（22）和外壳（23）。 中心单元（21）由颗粒核燃料（24）不分布的石墨基质组成。 中间壳（22）形成具有颗粒核燃料的核燃料区。 外壳（23）由颗粒核燃料随机分布的石墨基质构成，并包围中心单元（21）和中间壳（22）。