一种基于混合传导模型的一回路结构材料腐蚀-活化-迁移模型及其应用
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- 一种基于混合传导模型的一回路结构材料腐蚀-活化-迁移模型及其应用
- 发表刊物：
- 核科学与工程
- 摘要：
- 摘要：为了定量分析反应堆冷却剂加锌工艺对一回路系统堆芯外放射性水平的影响，本文结合描述材料
微观腐蚀过程的混合传导模型(MCM)和描述腐蚀产物活化、迁移及沉积的宏观输运模型，形成了能够
系统性描述一回路结构材料腐蚀嚎 化一迁移的联合模型，并通过遗传算法分析及文献调研确定模型各
主要参数。经校验表明该模型能够有效计算正常运行工况下一回路中结构材料的均匀腐蚀程度，同时
也能给出结构材料表面沉积层的放射性活度分布。使用该模型对加锌前后系统内不同分区的活度分别
进行了计算，结果表明加锌工艺能显著降低一回路堆芯外放射性水平。
关键词：加锌；腐蚀；迁移；放射性活度
Abstract：The mixed—conduction model(MCM )was used to characterize the microscopic
corrosion process of prim ary structure materials． The results combined with the
macroscopic transporting model characterizing the activation，migration and deposition
processes of corrosion products was investigated in order to study the effect of reactor
coolant zinc application on the radiation field reduction expectations in the reactor
coolant system (RCS)．A combined model was established which could quantitatively
depict those processes and the pivotal parameters of the model were obtained through
genetic algorithm analysis and literature studies. Then the model’s algorithm was
calibrated and showed that it could effectively calculate the effect of zinc addition on
activation，migration and deposition processes of corrosion products and could also carry
out radioactivity distribution for the primary side. The radioactivity of different regions
of RCS was also calculated using this mode1. The results showed that zinc addition
strategy could significantly reduce the radiation field for out-of-core region．
Key words：Zinc addition；Corrosion；Migration；Radioactivity
1上海核工程研究设计院 上海200233
2 西安交通大学核科学与技术学院 陕西西安710049
* 胡华四：huasi_ hu@ mail.xjtu.edu.cn
- 合写作者：
- 鲍一晨1， 石秀强1， 胡华四2*， 贾佳2， 莫舒然2
- 卷号：
- 37 (2) :
- 页面范围：
- 169-175
- 是否译文：
- 否
- 发表时间：
- 2017-04-01