公开(公告)号：US20120209576A1

公开(公告)日：2012-08-16

申请号：US13206219

申请日：2011-08-09

申请人： Kazuya Yamaji ,  Hiroki Koike ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

发明人： Kazuya Yamaji ,  Hiroki Koike ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

IPC分类号： G06F17/10

CPC分类号： G21D3/001 ,  G21C17/063 ,  Y02E30/40

摘要： [Problem to be Solved] To provide a nuclear-characteristic calculating program that can suppress an increase of calculation time without degrading calculation accuracy when calculating a nuclear characteristic of a fuel rod that contains burnable poison.[Solution] A nuclear-characteristic calculating program for calculating a nuclear characteristic of a fuel rod that contains nuclear fuel and burnable poison includes a first scattering model that can represent a simple scattering of the neutron and a second scattering model that can represent a complicated scattering of the neutron. The nuclear-characteristic calculating program includes Step S3 of calculating, when a burnup of the fuel rod is before a set burnup at which the burnable poison is considered to lose neutron absorption capability, the nuclear characteristic of the fuel rod by using the second scattering model, Step S11 of switching, when the burnup of the fuel rod is the set burnup, the scattering model from the second scattering model to the first scattering model, and Step S13 of calculating, after performing Step S11, the nuclear characteristic of the fuel rod by using the first scattering model.

摘要翻译： [待解决的问题]提供一种在计算包含可燃毒物的燃料棒的核特性时能够抑制计算时间的增加而不降低计算精度的核特性计算程序。 [解决方案]用于计算包含核燃料和可燃毒物的燃料棒的核特性的核特征计算程序包括可以表示中子的简单散射的第一散射模型和可表示复杂散射的第二散射模型 的中子。 核特征计算程序包括步骤S3，当燃料棒的燃耗在可燃毒物被认为失去中子吸收能力的设定燃耗之前时，计算燃料棒的核特性，通过使用第二散射模型 ，当燃料棒的燃耗是设定燃耗时，从第二散射模型到第一散射模型的散射模型，以及在执行步骤S11之后计算燃料棒的核特性的步骤S11， 通过使用第一散射模型。

公开(公告)号：US08583409B2

公开(公告)日：2013-11-12

申请号：US13206219

申请日：2011-08-09

申请人： Kazuya Yamaji ,  Hiroki Koike ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

发明人： Kazuya Yamaji ,  Hiroki Koike ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

IPC分类号： G06F17/17 ,  G06N7/06

CPC分类号： G21D3/001 ,  G21C17/063 ,  Y02E30/40

摘要： A nuclear-characteristic calculating program for calculating a nuclear characteristic of a fuel rod that contains nuclear fuel and burnable poison includes a first scattering model that can represent a simple scattering of the neutron and a second scattering model that can represent a complicated scattering of the neutron. The nuclear-characteristic calculating program includes step of calculating, when a burnup of the fuel rod is before a set burnup at which the burnable poison is considered to lose neutron absorption capability, the nuclear characteristic of the fuel rod by using the second scattering model, step of switching, when the burnup of the fuel rod is the set burnup, the scattering model from the second scattering model to the first scattering model, and step of calculating, after performing step of switching, the nuclear characteristic of the fuel rod by using the first scattering model.

摘要翻译： 用于计算包含核燃料和可燃毒物的燃料棒的核特性的核特征计算程序包括可以表示中子的简单散射的第一散射模型和可以代表中子的复杂散射的第二散射模型 。 核特征计算程序包括以下步骤：当燃料棒的燃耗在可燃毒物被认为失去中子吸收能力的设定燃耗之前时，计算使用第二散射模型的燃料棒的核特性， 当燃料棒的燃耗是设定燃耗时，从第二散射模型到第一散射模型的散射模型，以及在执行切换步骤之后计算燃料棒的核特性的步骤，通过使用 第一个散射模型。

公开(公告)号：US20120057667A1

公开(公告)日：2012-03-08

申请号：US12975941

申请日：2010-12-22

申请人： Hiroki Koike ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

发明人： Hiroki Koike ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

IPC分类号： G21C17/00

CPC分类号： G21D3/001 ,  G21C17/108 ,  Y02E30/40

摘要： [Solving Means] A resonance calculation program is configured to calculate an effective cross section including Step S4 of setting a calculation point in the gray range in the resonance region; Step S5 of calculating a neutron flux set at the calculation point and corresponding to a macroscopic cross section based on Method of Characteristics; Step S6 of fitting a fitting equation to the calculated macroscopic cross section and the calculated neutron flux, and calculating first and second rational coefficients; Step S7 of calculating a background cross section based on the first rational coefficient; Step S8 of interpolating the effective cross section, with the background cross section used as an argument; Step S9 of calculating the neutron flux based on the background cross section; and Step S10 of calculating the effective cross section based on the effective cross section, the neutron flux, and the second rational coefficient obtained at the coefficient calculation step.

摘要翻译： [解决方案]共振计算程序被配置为计算包括在共振区域中设置灰度范围中的计算点的步骤S4的有效截面; 基于特征方法计算在计算点设置的中子通量并对应于宏观横截面的步骤S5; 将拟合方程拟合到计算的宏观横截面和计算的中子通量的步骤S6，并计算第一和第二有理系数; 基于第一理性系数计算背景横截面的步骤S7; 内插有效截面的步骤S8，以背景横截面作为参数; 基于背景横截面计算中子通量的步骤S9; 以及基于在系数计算步骤中获得的有效截面，中子通量和第二有理系数来计算有效截面的步骤S10。

公开(公告)号：US08837663B2

公开(公告)日：2014-09-16

申请号：US12975941

申请日：2010-12-22

申请人： Hiroki Koike ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

发明人： Hiroki Koike ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota ,  Hideki Matsumoto

IPC分类号： G21C17/00 ,  G21C17/108 ,  G21D3/00

CPC分类号： G21D3/001 ,  G21C17/108 ,  Y02E30/40

摘要： [Solving Means] A resonance calculation program is configured to calculate an effective cross section including Step S4 of setting a calculation point in the gray range in the resonance region; Step S5 of calculating a neutron flux set at the calculation point and corresponding to a macroscopic cross section based on Method of Characteristics; Step S6 of fitting a fitting equation to the calculated macroscopic cross section and the calculated neutron flux, and calculating first and second rational coefficients; Step S7 of calculating a background cross section based on the first rational coefficient; Step S8 of interpolating the effective cross section, with the background cross section used as an argument; Step S9 of calculating the neutron flux based on the background cross section; and Step S10 of calculating the effective cross section based on the effective cross section, the neutron flux, and the second rational coefficient obtained at the coefficient calculation step.

摘要翻译： [解决方案]共振计算程序被配置为计算包括在共振区域中设置灰度范围中的计算点的步骤S4的有效截面; 基于特征方法计算在计算点设置的中子通量并对应于宏观横截面的步骤S5; 将拟合方程拟合到计算的宏观横截面和计算的中子通量的步骤S6，并计算第一和第二有理系数; 基于第一理性系数计算背景横截面的步骤S7; 内插有效截面的步骤S8，以背景横截面作为参数; 基于背景横截面计算中子通量的步骤S9; 以及基于在系数计算步骤中获得的有效截面，中子通量和第二有理系数来计算有效截面的步骤S10。

公开(公告)号：US08583376B2

公开(公告)日：2013-11-12

申请号：US13195355

申请日：2011-08-01

申请人： Hiroki Koike ,  Hideki Matsumoto ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota

发明人： Hiroki Koike ,  Hideki Matsumoto ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota

IPC分类号： G06F19/00

CPC分类号： G21D3/001 ,  G21C17/063 ,  G21D2003/002 ,  G21D2003/004 ,  Y02E30/40

摘要： [Problem to be Solved] To provide a resonance calculation program capable of evaluating a physical quantity such as an effective cross section in a radial direction of a circular region of a fuel rod by making a resonance calculation based on the equivalence principle.[Solution] A resonance calculation program for calculating an effective cross section by performing a resonance calculation based on an equivalence principle includes a radial-distribution calculation step S8 of calculating a distribution of the effective cross section in a radial direction of a circular region by calculating the effective cross section defined by a predetermined calculation expression including a geographical coefficient for each of a plurality of annular regions while a neutron escape probability in a resonance region is expressed by a polynomial rational expression including the geographical coefficient serving as a factor representing geographical shapes of a plurality of annular regions that are circumferentially annular and that are obtained by radially dividing the circular region that is an axial cross section of a fuel rod at predetermined intervals.

摘要翻译： [待解决的问题]提供一种能够通过基于等效原理进行共振计算来评价燃料棒的圆形区域的径向方向上的有效截面的物理量的共振计算程序。 [解决方案]通过基于等效原理执行谐振计算来计算有效截面的共振计算程序包括：径向分布计算步骤S8，其计算圆形区域的径向方向上的有效截面的分布， 包括用于多个环形区域中的每一个的地理系数的预定计算表达式限定的有效横截面，而在谐振区域中的中子逃逸概率由多项式理性表达式表示，该多项式理性表达式包括用作表示地理形状 多个环形区域，其周向环形，并且通过以预定间隔径向分割作为燃料棒的轴向截面的圆形区域获得。

公开(公告)号：US20120215444A1

公开(公告)日：2012-08-23

申请号：US13195355

申请日：2011-08-01

申请人： Hiroki Koike ,  Hideki Matsumoto ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota

发明人： Hiroki Koike ,  Hideki Matsumoto ,  Kazuya Yamaji ,  Daisuke Sato ,  Shinobu Tsubota

IPC分类号： G06F19/00

CPC分类号： G21D3/001 ,  G21C17/063 ,  G21D2003/002 ,  G21D2003/004 ,  Y02E30/40

摘要： [Problem to be Solved] To provide a resonance calculation program capable of evaluating a physical quantity such as an effective cross section in a radial direction of a circular region of a fuel rod by making a resonance calculation based on the equivalence principle.[Solution] A resonance calculation program for calculating an effective cross section by performing a resonance calculation based on an equivalence principle includes a radial-distribution calculation step S8 of calculating a distribution of the effective cross section in a radial direction of a circular region by calculating the effective cross section defined by a predetermined calculation expression including a geographical coefficient for each of a plurality of annular regions while a neutron escape probability in a resonance region is expressed by a polynomial rational expression including the geographical coefficient serving as a factor representing geographical shapes of a plurality of annular regions that are circumferentially annular and that are obtained by radially dividing the circular region that is an axial cross section of a fuel rod at predetermined intervals.

摘要翻译： [待解决的问题]提供一种能够通过基于等效原理进行共振计算来评价燃料棒的圆形区域的径向方向上的有效截面的物理量的共振计算程序。 [解决方案]通过基于等效原理执行谐振计算来计算有效截面的共振计算程序包括：径向分布计算步骤S8，其计算圆形区域的径向方向上的有效截面的分布， 包括用于多个环形区域中的每一个的地理系数的预定计算表达式限定的有效横截面，而在谐振区域中的中子逃逸概率由多项式理性表达式表示，该多项式理性表达式包括用作表示地理形状 多个环形区域，其周向环形，并且通过以预定间隔径向分割作为燃料棒的轴向截面的圆形区域获得。