发明名称 |
COEUR DE REACTEUR A EAU LEGERE ET ASSEMBLAGE COMBUSTIBLE. |
摘要 |
<p>A core of a light water reactor has a plurality of fuel assemblies. The fuel assemblies include a plurality of fuel rods in which a lower end is supported by a lower tie-plate and an upper end is supported by an upper tie-plate. The fuel rods form plenums above a nuclear fuel material zone and have a neutron absorbing material filling zone under the nuclear fuel material zone. Neutron absorbing members attached to the upper tie-plate are disposed between mutual plenums of the neighboring fuel rods above the nuclear fuel material zone. The neutron absorbing members have a length of 500 mm and are positioned at a distance of 300 mm from the nuclear fuel material zone. Even if the overall core is assumed to become a state of 100% void, no positive reactivity is inserted to the core.</p> |
申请公布号 |
FR2962843(B1) |
申请公布日期 |
2015.03.13 |
申请号 |
FR20110055533 |
申请日期 |
2011.06.23 |
申请人 |
HITACHI-GE NUCLEAR ENERGY, LTD |
发明人 |
TAKEDA RENZO;MIWA JUNICHI;MORIYA KUMIAKI |
分类号 |
G21C3/328;G21C7/02;G21C19/44 |
主分类号 |
G21C3/328 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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