Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors

Abstract We present an innovative architecture of a Rayleigh-based optical fibre sensor for the monitoring of water level and temperature inside storage nuclear fuel pools. This sensor, able to withstand the harsh constraints encountered under accidental conditions such as those pointed-out during t...

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Autores principales:	S. Rizzolo, J. Périsse, A. Boukenter, Y. Ouerdane, E. Marin, J-R. Macé, M. Cannas, S. Girard
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4425545822804fa2b0a9f6cb680399c6
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spelling	oai:doaj.org-article:4425545822804fa2b0a9f6cb680399c62021-12-02T15:05:24ZReal time monitoring of water level and temperature in storage fuel pools through optical fibre sensors10.1038/s41598-017-08853-72045-2322https://doaj.org/article/4425545822804fa2b0a9f6cb680399c62017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08853-7https://doaj.org/toc/2045-2322Abstract We present an innovative architecture of a Rayleigh-based optical fibre sensor for the monitoring of water level and temperature inside storage nuclear fuel pools. This sensor, able to withstand the harsh constraints encountered under accidental conditions such as those pointed-out during the Fukushima-Daiichi event (temperature up to 100 °C and radiation dose level up to ~20 kGy), exploits the Optical Frequency Domain Reflectometry technique to remotely monitor a radiation resistant silica-based optical fibre i.e. its sensing probe. We validate the efficiency and the robustness of water level measurements, which are extrapolated from the temperature profile along the fibre length, in a dedicated test bench allowing the simulation of the environmental operating and accidental conditions. The conceived prototype ensures an easy, practical and no invasive integration into existing nuclear facilities. The obtained results represent a significant breakthrough and comfort the ability of the developed system to overcome both operating and accidental constraints providing the distributed profiles of the water level (0–to–5 m) and temperature (20–to–100 °C) with a resolution that in accidental condition is better than 3 cm and of ~0.5 °C respectively. These new sensors will be able, as safeguards, to contribute and reinforce the safety in existing and future nuclear power plants.S. RizzoloJ. PérisseA. BoukenterY. OuerdaneE. MarinJ-R. MacéM. CannasS. GirardNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q S. Rizzolo J. Périsse A. Boukenter Y. Ouerdane E. Marin J-R. Macé M. Cannas S. Girard Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
description	Abstract We present an innovative architecture of a Rayleigh-based optical fibre sensor for the monitoring of water level and temperature inside storage nuclear fuel pools. This sensor, able to withstand the harsh constraints encountered under accidental conditions such as those pointed-out during the Fukushima-Daiichi event (temperature up to 100 °C and radiation dose level up to ~20 kGy), exploits the Optical Frequency Domain Reflectometry technique to remotely monitor a radiation resistant silica-based optical fibre i.e. its sensing probe. We validate the efficiency and the robustness of water level measurements, which are extrapolated from the temperature profile along the fibre length, in a dedicated test bench allowing the simulation of the environmental operating and accidental conditions. The conceived prototype ensures an easy, practical and no invasive integration into existing nuclear facilities. The obtained results represent a significant breakthrough and comfort the ability of the developed system to overcome both operating and accidental constraints providing the distributed profiles of the water level (0–to–5 m) and temperature (20–to–100 °C) with a resolution that in accidental condition is better than 3 cm and of ~0.5 °C respectively. These new sensors will be able, as safeguards, to contribute and reinforce the safety in existing and future nuclear power plants.
format	article
author	S. Rizzolo J. Périsse A. Boukenter Y. Ouerdane E. Marin J-R. Macé M. Cannas S. Girard
author_facet	S. Rizzolo J. Périsse A. Boukenter Y. Ouerdane E. Marin J-R. Macé M. Cannas S. Girard
author_sort	S. Rizzolo
title	Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
title_short	Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
title_full	Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
title_fullStr	Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
title_full_unstemmed	Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
title_sort	real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4425545822804fa2b0a9f6cb680399c6
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Real time monitoring of water level and temperature in storage fuel pools through optical fibre sensors

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