Theoretical research on location of fuel assemblies failure using the activity ratio of<sup>134</sup>Cs and <sup>137</sup>Cs

ZHU Lin; LIU Guanglei; LIU Jingjing

doi:10.11889/j.0253-3219.2019.hjs.42.100602

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Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs

NUCLEAR ENERGY SCIENCE AND ENGINEERING | 更新时间：2024-10-25

- Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs
- NUCLEAR TECHNIQUES Vol. 42, Issue 10, (2019)
- 作者机构：
  
  1.国核示范电站有限责任公司威海 264300
  2.辽宁红沿河核电有限公司大连 116000
- 作者简介：
  
  ZHU Lin, female, born in 1990, graduated from Harbin Engineering University with a master’s degree in 2017, focusing on fuel management in nuclear power plant
  LIU Guanglei, E-mail: liuguanglei@snpdp.com
- 基金信息：
- DOI：10.11889/j.0253-3219.2019.hjs.42.100602
  CLC： TL352.2⁺7
- Received：17 June 2019，
  
  Revised：16 September 2019，
  
  Published：13 October 2019
- 稿件说明：
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朱琳,刘光磊,刘晶晶.¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究[J].核技术,2019,42(10):77-81.

ZHU Lin,LIU Guanglei,LIU Jingjing.Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs[J].NUCLEAR TECHNIQUES,2019,42(10):77-81.
朱琳,刘光磊,刘晶晶.¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究[J].核技术,2019,42(10):77-81. DOI： 10.11889/j.0253-3219.2019.hjs.42.100602.

ZHU Lin,LIU Guanglei,LIU Jingjing.Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs[J].NUCLEAR TECHNIQUES,2019,42(10):77-81. DOI： 10.11889/j.0253-3219.2019.hjs.42.100602.

摘要

对破损燃料组件快速准确的定位，不仅可以为堆芯紧急换料提供宝贵时间，同时也缩短了大修的关键路径。本文对燃料组件中

134

Cs与

137

Cs放射性活度比与燃耗的关系进行了研究，并通过ORIGEN软件对计算得到的理论模型进行修正。研究发现：

134

Cs与

137

Cs放射性活度比随燃耗的增加而增大，随燃料组件富集度的增大而减小；通过修正后的

134

Cs/

137

Cs活度比与燃耗的关系可以确定压水堆核电厂不同燃料富集度下破损燃料组件的燃耗，进而实现对破损燃料组件准确的定位。

Abstract

Background

It is very important to locate ruptured fuel assemblies rapidly and accurately not only for emergency core refueling

but also for shortening critical path of overhaul.

Purpose

This study aims at location of fuel assemblies failure using the activity ratio of

134

Cs and

137

Cs.

Methods

The relationship between the ratio of

134

Cs to

137

Cs activity and fuel consumption in the fuel assembly was theoretically calculated

and the theoretical model was modified by ORIGEN software.

Results & Conclusions

It is found that the activity ratio of

134

Cs to

137

Cs increases with the increase of the burn-up

and decreases with the increase of fuel assembly enrichment. With the improved

134

Cs to

137

Cs activity ratio and burn

up model

the burnup of damaged fuel assemblies at different enrichment levels in pressurized water reactor (PWR) nuclear power plants can be determined

and then the damaged fuel assemblies can be quickly located.

关键词

Keywords

references

阿景烨 , 陈达 , 张文首 , 等 . 西安脉冲反应堆燃料元件燃耗的无损检测 [J ] . 核动力工程 , 2004 , 25 ( 6 ): 485 - 488 . DOI: 10.3969/j.issn.0258-0926.2004.06.002 http://dx.doi.org/10.3969/j.issn.0258-0926.2004.06.002 .

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SUN Shouhua , LI Jian , ZHU Lei , et al . Research on rapid location of ruptured fuel element by CS detection [J ] . Nuclear Power Engineering , 2016 , 37 ( 5 ): 46 - 50 . DOI: 10.13832/j.jnpe.2016.05.0046 http://dx.doi.org/10.13832/j.jnpe.2016.05.0046 .

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ZHANG Yan , YAN Xuekun , LIU Mingjian , et al . Influencing factors on key nuclides activity measuring in fuel element rupture detecting [J ] . Atomic Energy Science and Technology , 2008 , 42 ( 4 ): 318 - 321 .

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CHANG Jian , CAI Jiejin . Modeling and analysis of fuel rod cladding crevasse in same burn-up area [J ] . High Power Laser and Particle Beams , 2017 , 29 ( 5 ): 056002 . DOI: 10.11884/HPLPB201729.160283 http://dx.doi.org/10.11884/HPLPB201729.160283 .

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薛新才 . 燃料组件破损分析与监督管理 [J ] . 核电工程与技术 , 2011 , ( 1 ): 25 - 41 .

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Related Institution

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Theoretical research on location of fuel assemblies failure using the activity ratio of134Cs and 137Cs

DOI：10.11889/j.0253-3219.2019.hjs.42.100602

摘要

Abstract

关键词

Keywords

references

Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs