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Proceedings Paper

Gaseous hydrogen leakage optical fibre detection system
Author(s): Alain Trouillet; Colette Veillas; E. Sigronde; Henri Gagnaire; Michel Clement
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Paper Abstract

Liquid hydrogen has been intensively used in aerospace applications during the past forty years and is of great interest for fuel cells technologies and future automotive applications. Following upon major explosive risks due to the use of hydrogen in air, previous studies were carried out in our laboratory in order to develop optical fiber sensors for the detection of hydrogen leakage. This communication is aimed towards a prototype optical fiber system designed for the detection of gaseous hydrogen leakage near the conecting flanges of the liquid hydrogen pipes on the test bench of the engine Vulcain of the rocket ARIANE V. Depending on the configuration, the prototype sensor provides a two-level alarm signal and the detection of gaseous hydrogen leakage is possible for concentrations lower than the lower explosive limit in air (between 0.1 and 4%) with alarm response times lower than 10 seconds in a wide range of temperatures between -35°C and 300°C. The sensing principle based on palladium-hydrogen interaction is presented as well as the detection system composed of an optical fiber probe and an optoelectronic device.

Paper Details

Date Published: 9 June 2004
PDF: 4 pages
Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); doi: 10.1117/12.566538
Show Author Affiliations
Alain Trouillet, Univ. Jean Monnet Saint-Etienne (France)
Colette Veillas, Univ. Jean Monnet Saint-Etienne (France)
E. Sigronde, Univ. Jean Monnet Saint-Etienne (France)
Henri Gagnaire, Univ. Jean Monnet Saint-Etienne (France)
Michel Clement, Snecma Motors (France)

Published in SPIE Proceedings Vol. 5502:
Second European Workshop on Optical Fibre Sensors
Jose Miguel Lopez-Higuera; Brian Culshaw, Editor(s)

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