全谱系中子学计算程序FSAR的研发进展及其共振方法初步验证
TL33; 为满足覆盖广域中子能量范围的先进反应堆研发需求,中国核动力研究设计院开发了先进反应堆全谱系中子学计算程序FSAR.FSAR程序是基于确定论两步法计算策略、由二维截面生成计算程序和三维堆芯计算程序组成的中子学计算程序.二维截面生成程序采用超细群条件下的子群方法进行共振自屏效应处理,在共振计算中嵌入特征线方法求解慢化方程以获得精确的共振自屏截面.在截面生成计算中采用特征线方法求解二维组件的中子通量密度,从而获得少群均匀化截面.全谱系先进反应堆中子能量跨度大,不同的中子平均自由程导致了全堆芯局部非均匀性和全局空间耦合效应强烈.为更好地处理上述效应,截面生成计算中采用了超均匀化方法和泄漏修...
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| Published in | 原子能科学技术 Vol. 57; no. z1; pp. 26 - 34 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
核反应堆系统设计技术重点实验室,中国核动力研究设计院,四川成都 610041
20.07.2023
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6931 |
| DOI | 10.7538/yzk.2023.youxian.0160 |
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| Abstract | TL33; 为满足覆盖广域中子能量范围的先进反应堆研发需求,中国核动力研究设计院开发了先进反应堆全谱系中子学计算程序FSAR.FSAR程序是基于确定论两步法计算策略、由二维截面生成计算程序和三维堆芯计算程序组成的中子学计算程序.二维截面生成程序采用超细群条件下的子群方法进行共振自屏效应处理,在共振计算中嵌入特征线方法求解慢化方程以获得精确的共振自屏截面.在截面生成计算中采用特征线方法求解二维组件的中子通量密度,从而获得少群均匀化截面.全谱系先进反应堆中子能量跨度大,不同的中子平均自由程导致了全堆芯局部非均匀性和全局空间耦合效应强烈.为更好地处理上述效应,截面生成计算中采用了超均匀化方法和泄漏修正模型进行均匀化截面修正.堆芯计算程序采用离散纵标法进行三维中子输运计算,采用微观燃耗计算方法模拟堆内全寿期内各核素的消耗和累积.本文采用快谱、中间能谱及热谱条件下的计算问题对FSAR程序共振计算方法进行了初步验证.计算结果表明,对于不同能谱条件下的测试问题,FSAR程序均能够获得与参考解符合较好的有效共振截面,具备良好的全中子能谱共振效应处理能力. |
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| AbstractList | TL33; 为满足覆盖广域中子能量范围的先进反应堆研发需求,中国核动力研究设计院开发了先进反应堆全谱系中子学计算程序FSAR.FSAR程序是基于确定论两步法计算策略、由二维截面生成计算程序和三维堆芯计算程序组成的中子学计算程序.二维截面生成程序采用超细群条件下的子群方法进行共振自屏效应处理,在共振计算中嵌入特征线方法求解慢化方程以获得精确的共振自屏截面.在截面生成计算中采用特征线方法求解二维组件的中子通量密度,从而获得少群均匀化截面.全谱系先进反应堆中子能量跨度大,不同的中子平均自由程导致了全堆芯局部非均匀性和全局空间耦合效应强烈.为更好地处理上述效应,截面生成计算中采用了超均匀化方法和泄漏修正模型进行均匀化截面修正.堆芯计算程序采用离散纵标法进行三维中子输运计算,采用微观燃耗计算方法模拟堆内全寿期内各核素的消耗和累积.本文采用快谱、中间能谱及热谱条件下的计算问题对FSAR程序共振计算方法进行了初步验证.计算结果表明,对于不同能谱条件下的测试问题,FSAR程序均能够获得与参考解符合较好的有效共振截面,具备良好的全中子能谱共振效应处理能力. |
| Author | 刘佳艺 卢迪 赵晨 王连杰 张斌 |
| AuthorAffiliation | 核反应堆系统设计技术重点实验室,中国核动力研究设计院,四川成都 610041 |
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| Author_FL | ZHAO Chen ZHANG Bin LU Di WANG Lianjie LIU Jiayi |
| Author_FL_xml | – sequence: 1 fullname: ZHANG Bin – sequence: 2 fullname: WANG Lianjie – sequence: 3 fullname: LU Di – sequence: 4 fullname: ZHAO Chen – sequence: 5 fullname: LIU Jiayi |
| Author_xml | – sequence: 1 fullname: 张斌 – sequence: 2 fullname: 王连杰 – sequence: 3 fullname: 卢迪 – sequence: 4 fullname: 赵晨 – sequence: 5 fullname: 刘佳艺 |
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| DocumentTitle_FL | Development of Full Neutron Spectrum Code for Advanced Reactor Simulation FSAR and Its Primary Verification of Resonance Method |
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| Keywords | 全谱系 三维堆芯计算 three-dimensional core simulation resonance self-shielding effect 二维截面生成计算 two-dimensional cross section generation advanced reactor full neutron spectrum 先进反应堆 共振自屏效应 |
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| Title | 全谱系中子学计算程序FSAR的研发进展及其共振方法初步验证 |
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