基于WIMS-D库燃耗数据的更新与基准验证

肖向; 吴军; 龚游; 杨仝瑞; 董正云; 陈义学

doi:10.11889/j.0253-3219.2017.hjs.40.110602

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基于WIMS-D库燃耗数据的更新与基准验证

核能科学与工程 | 更新时间：2021-05-19

- 基于WIMS-D库燃耗数据的更新与基准验证
- Burnup information updating and verification based on WIMS-D library
- 核技术 2017年40卷第11期文章编号：110602
- 作者机构：
  
  1.华北电力大学核科学与工程学院北京 102206
  2.国家核电技术有限公司北京软件技术中心北京 100029
  3.中国科学院核能安全技术研究所合肥 230000
- 作者简介：
  
  [ "肖向, 男, 1993年出生, 2015年毕业于湖北科技学院, 现为硕士研究生, 研究领域为核数据库的开发与截面处理", "XIAO Xiang, male, born in 1993, graduated from Hubei University of Science and Technology in 2015, master student, focusing on the development of nuclear data library and cross section processing" ]
  吴军, E-mail:wujun2007@ncepu.edu.cn WU Jun, E-mail:wujun2007@ncepu.edu.cn
- 基金信息：
  
  国家自然科学基金(11275070);国家科技重大专项(2011ZX06004-024-06-03-00);中央高校基本科研业务费专项(2014MS51)
- DOI：10.11889/j.0253-3219.2017.hjs.40.110602
  中图分类号： TL99
- 收稿日期：2017-03-28，
  
  修回日期：2017-05-12，
  
  纸质出版日期：2017-11-10
- 稿件说明：
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肖向, 吴军, 龚游, 等. 基于WIMS-D库燃耗数据的更新与基准验证[J]. 核技术, 2017,40(11):110602

Xiang XIAO, Jun WU, You GONG, et al. Burnup information updating and verification based on WIMS-D library[J]. Nuclear techniques, 2017, 40(11): 110602
肖向, 吴军, 龚游, 等. 基于WIMS-D库燃耗数据的更新与基准验证[J]. 核技术, 2017,40(11):110602 DOI： 10.11889/j.0253-3219.2017.hjs.40.110602.

Xiang XIAO, Jun WU, You GONG, et al. Burnup information updating and verification based on WIMS-D library[J]. Nuclear techniques, 2017, 40(11): 110602 DOI： 10.11889/j.0253-3219.2017.hjs.40.110602.

摘要

随着AP1000等新一代压水堆的发展，燃耗深度在不断提高，平均卸料燃耗深度提高到60 GW d·t

-1

。然而，传统使用的WIMS69群和XMAS172群WIMS-D格式多群常数库，其能群结构存在共振峰重叠，核素种类较少，裂变产物产额的偏差较大，并且伪裂变产物中包含的核素种类较多而导致

152

Gd、

160

Gd、

159

Tb、

160

Tb等重要核素无法得到精确处理等问题。因此，本文主要针对AP1000等新一代反应堆的设计以及运行特点，基于ENDF/B-Ⅶ.1库，并且在现有基础上针对WIMS-D库中的伪裂变产物、裂变产物燃耗链以及裂变产物产额等燃耗数据进行更新，再通过NJOY程序开发了SHEM281群WIMS-D格式多群常数库。通过DRAGON程序挂载该WIMSD281库，对其进行临界和燃耗两方面基准验证。计算结果表明，该数据库的计算结果与基准值符合较好，精度较高，结果可靠，可初步用于压水堆的相关计算。

Abstract

Background

With the development of AP1000

the burnup has been raised constantly and the average burnup is expected to reach 60 GW d·t

-1

. However

the traditional WIMS-D library which is based on WIMS69 and XMAS172 energy group structure

has too many flaws such as the resonance overlap effect

lack of some nuclides

unreliable value of the fission product yield and thus can't explicitly treat the nuclide of

152

160

159

Tb and

160

Tb in the pseudo fission product.

Purpose

A new version of WIMS-D library based on ENDF/B-Ⅶ.1 with SHEM281 group structure is developed to improve the accuracy of cell calculation using the NJOY program.

Methods

The new library is verified through the analysis of criticality and burnup benchmarks by using DRAGON program.

Results

The results show that the calculation values are in good agreement with the benchmark.

Conclusion

The new library has high precision and the result is reliable

which can be used for the PWR's calculation.

关键词

Keywords

references

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