Non-Destructive Testings of the Lifting Hook and Heat Exchanger Circuits of the Research Reactor TRICO II by Liquid Penetrant and Ultrasonics Testing

Document Type : Original Article

Authors

1 COMMISSARIAT GENERAL A L'ENERGIE ATOMIQUE/CENTRE REGIONAL D'ETUDES NUCLEAIRES DE KINSHASA(CGEA/CREN-K) KINSHASA /DRCONGO

2 COMMISSARIAT GENERAL A L'ENERGIE ATOMIQUE/CENTRE REGIONAL D'ETUDES NUCLEAIRES DE KINSHASA (CGEA/CRENK) KINSHASA/DRCONGO

3 COMMISSARIAT A L'ENERGIE ATOMIQUE/CENTRE REGIONAL D'ETUDES NUCLEAIRES DE KINSHASA RDCONGO (CGEA/CRENK) KINSHASA/DRCONGO

4 COMMISSARIAT GENERAL A L'ENERGIE ATOMIQUE/CENTRE REGIIONAL D'ETUDES NUCLEAIRES DE KINSHASA (CGEA/CRENK) KINSHASA/ RDCONGO

5 COMMISSARIAT GENERAL A L'ENERGIE ATOMIQUE/CENTRE REGIONAL D'ETUDES NUCLEAIRES DE KINSHASA (CGEA/CRENK) UNIVERSITE DE KINSHASA(UNIKIN) KINSHASA/DRCONGO

6 UNIVERSITE DE KINSHASA (UNIKIN) KINSHASA/DRCONGO

Abstract

For its restart, components oFor its restart, components of research reactor TRICO II are subject of Non-Destructive Testings (NDT). Its STAHL hoist lifting hook 5000kg was inspected by colored liquid penetrant method for the research of surfaces defects, through white light in 750 lux. Result obtained indicates that it is not degraded. Indirect visual inspection by the multifunction video endoscope KC 350 was used to control internal wall of heat exchanger secondary circuit piping, some photos of internal wall were captured. The ultrasonic method consisted in measuring thickness of internal and external part of piping of the heat exchanger secondary circuit using thickness gauge ATG II with built-in 4.00mm calibration block. Results obtained by visual inspection showed the presence of rust and corrosion. The ultrasonic method showed thickness variation on controlled surface due to deposit rust (high value of thickness) and corrosion (low value of thickness). This work is carried out as part of maintenance, periodic testing and inspection for proper management of the TRICO II reactor.

Keywords

Arab Journal of Nuclear Sciences and Applications
Volume 56, Issue 2 - Serial Number 2
Special Issue: Proceedings of the 10th African Conference on Research Reactor Safety, Operation and Utilization, Cairo, Egypt, 27 – 29 November 2022, organized by the IAEA in cooperation with the EAEA.
January 2023
Pages 140-148

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