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Gas temperature measurements using fibre Bragg grating during fire experiments in a tunnel
SP Brandteknik. (MERO Mälardalen Safety Science Lab (extern))ORCID iD: 0000-0001-6758-6067
SP Mätteknik.
SP Brandteknik. (MERO Mälardalen Safety Science Lab)
2008 (English)In: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 43, no 2, p. 119-126Article in journal (Refereed) Published
Abstract [en]

Gas temperature measurements with thermocouples are affected by radiation.  This effect means the temperature measured by a thermocouple can be far from the actual gas temperature. To study this effect and to compare the thermocouple readings with the readings of a fibre Bragg grating (FBG) sensor, fire experiments were performed in a model-scale tunnel. In this paper the results from two such fire experiments are presented. The temperatures measured using thermocouples with different diameters and the FBG sensor are compared and discussed. The “true” gas temperature, corrected for radiation effects from the thermocouples, was calculated from the results from the thermocouples with different diameters. The results show that the temperature measured by the FBG sensor is closer to the “true” gas temperature than is the case for any of the thermocouples used in these tests.

Place, publisher, year, edition, pages
2008. Vol. 43, no 2, p. 119-126
Keywords [en]
tunnel, fire, scale model experiments, temperature measurement, fibre Bragg grating
National Category
Engineering and Technology
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-11387DOI: 10.1016/j.firesaf.2007.06.001ISI: 000253634400004Scopus ID: 2-s2.0-38749084552OAI: oai:DiVA.org:mdh-11387DiVA, id: diva2:386204
Available from: 2011-01-12 Created: 2011-01-12 Last updated: 2019-12-12Bibliographically approved

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