公开(公告)号：EP1965392A2

公开(公告)日：2008-09-03

申请号：EP08001325.3

申请日：2008-01-24

申请人： Hitachi, Ltd.

发明人： Takeda, Renzo c/o Hitachi Ltd.Intellectual Property Group ,  Miwa, Junichi c/o Hitachi Ltd.Intellectual Property Group ,  Moriya, Kumiaki c/o Hitachi Ltd. Intellectual Property Group

IPC分类号： G21C1/08 ,  G21C3/42

CPC分类号： G21C1/084 ,  G21C3/328 ,  G21C5/00 ,  G21C2003/3262 ,  G21Y2002/201 ,  G21Y2002/304 ,  G21Y2002/60 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/31 ,  Y02E30/38

摘要： The core flow rate of a boiling water reactor (BWR) (19) is adjusted so that it reaches a core flow rate setting that is determined from the characteristic according to the ratio of Pu-239 in transuranic nuclides (TRU) included in a new fuel assembly (1) to be loaded in a core (20). The core flow rate is maintained at the set core flow rate in all operation cycles of the BWR (19). Accordingly, the ratios of a plurality of TRU isotopes included in a fuel assembly (1) when the fuel assembly (1) is taken out of the BWR core (20) as a spent fuel is substantially the same as the ratios of the plurality of TRU isotopes included in a new fuel assembly (1) to be loaded in the BWR core (20). The ratio of Pu-239 in TRU included in the new fuel assembly (1) is 3% or more but 45% or less. As a result, a nuclear proliferation resistance can be increased while restrictive conditions for safety are met, a burnup can be further increased, and TRU multi-recycling becomes feasible.

摘要翻译： 调节沸水反应器（BWR）（19）的核心流速，使其达到核心流量设定值，该核心流量设定值是根据新特性中包含的超铀核素（TRU）中Pu-239的比例的特性确定的 燃料组件（1）装载在一个芯体（20）中。 在BWR的所有操作循环中，核心流速保持在设定的核心流速（19）。 因此，当燃料组件（1）作为乏燃料从BWR芯（20）中取出时，包括在燃料组件（1）中的多个TRU同位素的比例与多个 包含在要装载在BWR芯（20）中的新燃料组件（1）中的TRU同位素。 新型燃料组件（1）中包含的TRUU中的Pu-239比例为3％以上且45％以下。 结果，可以增加核扩散阻力，同时满足安全限制条件，可以进一步提高燃耗，并且TRU多重再循环变得可行。

公开(公告)号：EP1965392A3

公开(公告)日：2009-11-25

申请号：EP08001325.3

申请日：2008-01-24

申请人： Hitachi, Ltd.

发明人： Takeda, Renzo c/o Hitachi Ltd.Intellectual Property Group ,  Miwa, Junichi c/o Hitachi Ltd.Intellectual Property Group ,  Moriya, Kumiaki c/o Hitachi Ltd. Intellectual Property Group

IPC分类号： G21C1/08 ,  G21C3/42

CPC分类号： G21C1/084 ,  G21C3/328 ,  G21C5/00 ,  G21C2003/3262 ,  G21Y2002/201 ,  G21Y2002/304 ,  G21Y2002/60 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/403 ,  Y02E30/31 ,  Y02E30/38

摘要： The core flow rate of a boiling water reactor (BWR) (19) is adjusted so that it reaches a core flow rate setting that is determined from the characteristic according to the ratio of Pu-239 in transuranic nuclides (TRU) included in a new fuel assembly (1) to be loaded in a core (20). The core flow rate is maintained at the set core flow rate in all operation cycles of the BWR (19). Accordingly, the ratios of a plurality of TRU isotopes included in a fuel assembly (1) when the fuel assembly (1) is taken out of the BWR core (20) as a spent fuel is substantially the same as the ratios of the plurality of TRU isotopes included in a new fuel assembly (1) to be loaded in the BWR core (20). The ratio of Pu-239 in TRU included in the new fuel assembly (1) is 3% or more but 45% or less. As a result, a nuclear proliferation resistance can be increased while restrictive conditions for safety are met, a burnup can be further increased, and TRU multi-recycling becomes feasible.