Increased sensitivity of fuel cladding failure detection

IF 0.4 4区 工程技术 Q4 NUCLEAR SCIENCE & TECHNOLOGY Atomic Energy Pub Date : 2024-06-20 DOI:10.1007/s10512-024-01089-5
A. B. Tereshchenko, E. I. Golubev
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Abstract

The present paper considers the processes occurring in a failed fuel element during fuel cladding failure detection in the mast sipping system of the refueling machine. The time taken for water and fission gas products to leak from a failed fuel element during its lifting was estimated depending on the size of the defect. A period of 10–12 min exposure prior to bubbling was demonstrated to be applicable for detecting defects with a size of about 30 μm. The sizes of gas bubbles leaving the fuel element during the failure detection were estimated along with their rate of ascent. An algorithm for conducting fuel element failure detection that increases the sensitivity of the method without extending the refueling is proposed.

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提高燃料包层故障检测的灵敏度
本文探讨了在加注机桅杆吸入系统中检测燃料包层失效期间,失效燃料元件中发生的过程。根据缺陷的大小,估算了失效燃料元件在提升过程中水和裂变气体产物的泄漏时间。结果表明,起泡前 10-12 分钟的暴露期适用于检测尺寸约为 30 μm 的缺陷。在故障检测期间,对离开燃料元件的气泡大小及其上升速度进行了估算。提出了一种进行燃料元件故障检测的算法,该算法在不延长加油时间的情况下提高了方法的灵敏度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Atomic Energy
Atomic Energy 工程技术-核科学技术
CiteScore
1.00
自引率
20.00%
发文量
100
审稿时长
4-8 weeks
期刊介绍: Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.
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