Distributed temperature monitoring for liquid sodium leakage detection using OFDR-based Rayleigh backscattering

Болдырева, Е. В.; Cotillard, R.; Laffont, Guillaume; Ferdinand, Pierre; Cambet, D.; Jeannot, Jean-Philippe; Charvet, P.; Albaladejo, S.; Rodríguez, Gerardo

doi:10.1117/12.2059531

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…We detail some of them below, focusing on some representative SHM applications involving damage phenomena, but many others can be found in the literature, e.g. [42,33,161,239,105,245,203,242], addressing the monitoring of various structural parameters. It is important to remind that Rayleigh-based OFDR is a rising but quite new technology for SHM systems, so that possibilities have just started to be grasped.…”

Section: Recent Shm Applications and Challenges With Rayleigh-based S...mentioning

confidence: 99%

An educational review on distributed optic fiber sensing based on Rayleigh backscattering for damage tracking and structural health monitoring

Chamoin¹,

Farahbakhsh²,

Poncelet³

2022

Meas. Sci. Technol.

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This paper is a review on distributed optic fiber sensing for structural health monitoring applications, with a deeper focus on technologies relying on the Rayleigh backscattering phenomenon. It addresses the basic physical principles which are involved, the implementation and instrumentation of the measurement techniques, as well as recent practical applications, current performance, and remaining challenges. Being written at an elementary level and integrating relevant theoretical and technical details, we hope the document can be useful for researchers and engineers looking for an up-to-date overview on a field which currently undergoes significant development and increasing attractiveness, in particular for damage tracking in complex mechanical structures.

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Section: Recent Shm Applications and Challenges With Rayleigh-based S...mentioning

confidence: 99%

An educational review on distributed optic fiber sensing based on Rayleigh backscattering for damage tracking and structural health monitoring

Chamoin¹,

Farahbakhsh²,

Poncelet³

2022

Meas. Sci. Technol.

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“…A gold-coated single mode optical fiber was installed at CEA to perform detection tests of liquid sodium leakage on a pipe mock-up in 2012 [8]. Since that date, further experimental tests have been conducted in order to improve the relevant technology.…”

Section: Ii2 Description Of the Optical Fiber Sensormentioning

confidence: 99%

Innovating leak detection on conducting fluid pipelines

Girard

Albaladejo

Charvet

et al. 2018

2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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CEA (French Commission for Atomic and Alternative Energies) has launched a R&D program focused on leak detection of sodium on industrial ducts aiming at detecting and pinpointing the exact location of fluid leakage along pipelines or on tanks quickly. This R&D program is focused on the development of innovating detectors, Multilayer-type and Optical Fiber Distributed Sensors, involving tests on mock-ups in a dedicated sodium loop settled at CEA-CADARACHE, France. This loop named FUTUNa, is designed to produce very accurate sodium leak rates within a range around 1 cm 3 /min, the tests being performed at various temperatures (from 180°C up to 550°C) on large-diameter pipe mock-ups (DN 800) under ambient or nitrogen environment. This paper presents the advantages of each innovating detector and series of tests carried out with various materials of the Multilayer-type Detector and different routings of the Optical Fiber Sensor. The relevant results are compared and discussed as well as the observations made after removing the mock-ups. The most interesting result of the overall tests is a rapid detection time for the two types of detectors less than the other conventional wire type leak detection systems. Item: In-service inspection-leak instrumentation-conductive fluid-pipeline-duct-storage tank-electrical short circuit-multilayer detector system-optical fiber sensor I.

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“…In recent years, fiber-optic-distributed temperature sensor technology (FODTS) based on Brillouin and Raman scattering, and quasi-distributed temperature sensor technology based on fiber Bragg grating (FBG), have developed rapidly and been employed to perform health monitoring for civil structural works, such as leakage detection of dam and petroleum pipeline [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. With the advanced sensor technology, innovative methods have also been devised to detect and localize potential leakages in D-walls based on FODTS technology [ 5 , 16 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study

Zhang

Chen

Zheng

et al. 2021

Sensors

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Joints between diaphragm wall panels are weak spots in wall construction. It is essential that potential leak sites are detected prior to excavation. In this study, a novel leak detection and monitoring system is presented that is based on fiber Bragg grating (FBG) sensing technology. A field study was performed in a deep excavation supported by diaphragm walls (in Hohhot, China) to validate the feasibility and effectiveness of the proposed method. Two schemes were trialed; one using pipes made of stainless steel, and one used a pipeless method. The results of the field study are presented and discussed. They show that potential leak sites in the wall joints could be determined prior to excavation using the proposed detection method. Stainless steel is a good material to use to make the detection tube because it can protect the FBG sensors and heating belts from damage and is more sensitive to water leakage. The field study provides good evidence for the feasibility of the new detection system. It also provides valuable experience for the field application of the system and has generated useful data to use in follow-up work.

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Distributed temperature monitoring for liquid sodium leakage detection using OFDR-based Rayleigh backscattering

Cited by 6 publications

References 5 publications

An educational review on distributed optic fiber sensing based on Rayleigh backscattering for damage tracking and structural health monitoring

An educational review on distributed optic fiber sensing based on Rayleigh backscattering for damage tracking and structural health monitoring

Innovating leak detection on conducting fluid pipelines

Application of Fiber Bragg Grating Sensor Technology to Leak Detection and Monitoring in Diaphragm Wall Joints: A Field Study

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