Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave

As protection for nuclear power plants is quite necessary, the nuclear fuel is sealed in zirconium alloy thin wall cladding. During service, fuel rods might be damaged caused by wall-thickness thinning, cladding corrosion and cracking, etc. This will cause the coolant to enter into the fuel rod, whi...

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Main Authors: Xiang Xiao, Guo Zheng Zhou, Ke Qing Wang, Feng Xi, Kun Zeng
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/19/7606
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author Xiang Xiao
Guo Zheng Zhou
Ke Qing Wang
Feng Xi
Kun Zeng
author_facet Xiang Xiao
Guo Zheng Zhou
Ke Qing Wang
Feng Xi
Kun Zeng
author_sort Xiang Xiao
collection DOAJ
description As protection for nuclear power plants is quite necessary, the nuclear fuel is sealed in zirconium alloy thin wall cladding. During service, fuel rods might be damaged caused by wall-thickness thinning, cladding corrosion and cracking, etc. This will cause the coolant to enter into the fuel rod, which may lead to the failure of the fuel assembly. However, current diagnostic methods have limitations due to the special structure of the fuel assembly and the underwater and radioactive environment. In this paper, a novel inspection method is proposed to recognize the failure of a fuel rod. The fuel rod failure can be detected based on the presence or absence of coolant inside the fuel rod by using an ultrasonic plate wave. The inspection model and process algorithm are proposed for in-service inspection. The relationship between signal and scanning position is established and analyzed. Both ultrasound field simulation and experiment have been carried out for validation. The corresponding results illustrate that the failed nuclear fuel rod of the whole fuel assembly (including the internal rods) can be effectively detected without the influence of the near-field region by using the proposed method.
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spelling doaj.art-e45b11659b0f4e13b85c98b6890fde312023-11-23T21:51:51ZengMDPI AGSensors1424-82202022-10-012219760610.3390/s22197606Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate WaveXiang Xiao0Guo Zheng Zhou1Ke Qing Wang2Feng Xi3Kun Zeng4School of Artificial Intelligence, Chong Qing Technology and Business University, Chongqing 400067, ChinaSuzhou Nuclear Power Research Institute, Suzhou 215004, ChinaSchool of Automation, Wuxi University, Wuxi 214105, ChinaSchool of Artificial Intelligence, Chong Qing Technology and Business University, Chongqing 400067, ChinaDongFang Boiler Co., Ltd., Deyang 618000, ChinaAs protection for nuclear power plants is quite necessary, the nuclear fuel is sealed in zirconium alloy thin wall cladding. During service, fuel rods might be damaged caused by wall-thickness thinning, cladding corrosion and cracking, etc. This will cause the coolant to enter into the fuel rod, which may lead to the failure of the fuel assembly. However, current diagnostic methods have limitations due to the special structure of the fuel assembly and the underwater and radioactive environment. In this paper, a novel inspection method is proposed to recognize the failure of a fuel rod. The fuel rod failure can be detected based on the presence or absence of coolant inside the fuel rod by using an ultrasonic plate wave. The inspection model and process algorithm are proposed for in-service inspection. The relationship between signal and scanning position is established and analyzed. Both ultrasound field simulation and experiment have been carried out for validation. The corresponding results illustrate that the failed nuclear fuel rod of the whole fuel assembly (including the internal rods) can be effectively detected without the influence of the near-field region by using the proposed method.https://www.mdpi.com/1424-8220/22/19/7606ultrasonic plate wavenuclear failed rodin-service inspection
spellingShingle Xiang Xiao
Guo Zheng Zhou
Ke Qing Wang
Feng Xi
Kun Zeng
Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave
Sensors
ultrasonic plate wave
nuclear failed rod
in-service inspection
title Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave
title_full Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave
title_fullStr Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave
title_full_unstemmed Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave
title_short Study on In-Service Inspection of Nuclear Fuel Assembly Failure Using Ultrasonic Plate Wave
title_sort study on in service inspection of nuclear fuel assembly failure using ultrasonic plate wave
topic ultrasonic plate wave
nuclear failed rod
in-service inspection
url https://www.mdpi.com/1424-8220/22/19/7606
work_keys_str_mv AT xiangxiao studyoninserviceinspectionofnuclearfuelassemblyfailureusingultrasonicplatewave
AT guozhengzhou studyoninserviceinspectionofnuclearfuelassemblyfailureusingultrasonicplatewave
AT keqingwang studyoninserviceinspectionofnuclearfuelassemblyfailureusingultrasonicplatewave
AT fengxi studyoninserviceinspectionofnuclearfuelassemblyfailureusingultrasonicplatewave
AT kunzeng studyoninserviceinspectionofnuclearfuelassemblyfailureusingultrasonicplatewave