三维燃料棒精细化模拟软件FUPAC3D与FUPAC的对比验证研究

王严培; 刘振海; 齐飞鹏; 唐昌兵; 张坤; 周毅; 王鹏; 余霖

doi:10.13832/j.jnpe.2022.04.0046

三维燃料棒精细化模拟软件FUPAC3D与FUPAC的对比验证研究

doi: 10.13832/j.jnpe.2022.04.0046

中国核动力研究设计院核反应堆系统设计技术重点实验室，成都，610213

基金项目: 国家自然科学基金（U1867219）

详细信息

作者简介:
王严培（1989—），男，博士，工程师，现主要从事燃料元件设计研究，E-mail: yanpei_wang@foxmail.com

中图分类号: TL352.1
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- 文章访问数: 306
- HTML全文浏览量: 110
- PDF下载量: 65
- 被引次数: 0
出版历程
- 收稿日期: 2021-08-19
- 录用日期: 2022-03-14
- 修回日期: 2021-12-13
- 刊出日期: 2022-08-04

Comparative Validation of Three Dimensional Fuel Rod Fine Simulation Software FUPAC3D and FUPAC

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

摘要

摘要: 为验证基于三维有限元分析平台建立的三维燃料棒精细化模拟软件FUPAC3D在分析评价压水堆燃料棒辐照-热-力耦合行为方面的能力和精度，本文给出了三维FUPAC3D软件采用的热学模型、燃料棒力学模型、裂变气体释放模型以及腐蚀模型，以华龙一号典型燃料棒参数和运行工况作为输入参数，分别使用三维FUPAC3D软件和已工程化应用的1.5维FUPAC软件进行建模分析，并针对2种软件在芯块和包壳温度、包壳应力与应变、芯块与包壳间间隙宽度的计算结果进行对比研究。研究结果表明，FUPAC3D软件与FUPAC软件具有相当的精度，FUPAC3D软件具备压水堆燃料棒辐照-热-力耦合行为的精细化模拟能力。
- 燃料棒 /
- 三维模拟 /
- 对比验证
Abstract: To verify the function and accuracy of the three-dimensional fuel rod fine simulation software FUPAC3D based on the three-dimensional finite element analysis platform in analyzing and evaluating the radiation-thermal -mechanical coupling behavior of PWR fuel rods, in this paper, the thermal model, fuel rod mechanical model, fission gas release model and corrosion model adopted by the three-dimensional FUPAC3D software are given. Taking the typical fuel rod parameters and operating conditions of HPR1000 as input parameters, the three-dimensional FUPAC3D software and the 1.5-dimensional FUPAC software that has been applied in engineering are used for modeling and analysis. The calculation results of two kinds of software in the temperature of pellet and cladding, the stress and strain of cladding, and the gap width between pellet and cladding are compared. The results show that FUPAC3D software and FUPAC software have considerable accuracy, and FUPAC3D software has the fine ability to simulate the radiation-thermal-mechanical coupling behavior of PWR fuel rods.
- Fuel rods /
- Three-dimensional simulation /
- Comparative validation

HTML全文

图 1 FUPAC3D计算流程

Figure 1. FUPAC3D Calculation Process

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图 2 1.5维、三维模型及取值点

Figure 2. Data Points of 1.5D and 3D Models

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图 3 功率史

Figure 3. Power History

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图 4 三维模型示意图

Figure 4. Schematic Diagram of 3D Model

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图 5 三维模型计算结果

Figure 5. Calculation Results of Three-dimensional Model

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图 6 芯块中心温度

Figure 6. Temperature of Pellet Center

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图 7 包壳内表面温度

Figure 7. Cladding Inner Surface Temperature

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图 8 包壳内表面应力

Figure 8. Cladding Inner Surface Stress

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图 9 包壳内表面应变

Figure 9. Cladding Inner Surface Strain

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图 10 芯块与包壳间间隙宽度

Figure 10. Gap Width between Pellet and Cladding

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表 1 芯块和包壳结构参数

Table 1. Structure Parameters of Pellet and Cladding

参数名参数值/mm

芯块直径 8.192
芯块高度 13.46
碟形深度 0.305
倒角高度 0.195
倒角宽度 0.57
包壳外径 9.50
包壳内径 8.36

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参考文献(19)

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