Tunable diode laser based concentration measurements of water vapour and methane on a solid oxide fuel cell

Michael Lengden, Robert Cunningham, Walter Johnstone

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper presents concentration measurements of water vapour and methane, taken in-situ on an operational solid oxide fuel cell (SOFC) test rig using tunable diode laser spectroscopy (TDLS). Methane concentration measurements are presented for the TDLS system and are compared with concentration measurements taken using gas chromatography (GC). Furthermore, purge times for the SOFC gas-analysis system have been calculated using TDLS, which are measurements that cannot be obtained directly using GC. Finally, water vapour concentration measurements in the SOFC cathode are shown for different system operating conditions: a dry cathode cycle and during the introduction of water vapour. As GC cannot be used to measure water vapour in the SOFC cathode stream, a direct comparison cannot be made with the TDLS measurements.
LanguageEnglish
Pages1354 - 1359
Number of pages7
JournalJournal of Lightwave Technology
Volume31
Issue number9
DOIs
Publication statusPublished - 1 May 2013

Fingerprint

solid oxide fuel cells
Solid oxide fuel cells (SOFC)
Water vapor
Semiconductor lasers
water vapor
Methane
Laser spectroscopy
methane
semiconductor lasers
laser spectroscopy
gas chromatography
diodes
Gas chromatography
cell cathodes
Cathodes
Gas fuel analysis
gas analysis
cathodes
cycles

Keywords

  • cathode stream
  • solid oxide fuel cell
  • molecular spectroscopy
  • gas chromatography

Cite this

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abstract = "This paper presents concentration measurements of water vapour and methane, taken in-situ on an operational solid oxide fuel cell (SOFC) test rig using tunable diode laser spectroscopy (TDLS). Methane concentration measurements are presented for the TDLS system and are compared with concentration measurements taken using gas chromatography (GC). Furthermore, purge times for the SOFC gas-analysis system have been calculated using TDLS, which are measurements that cannot be obtained directly using GC. Finally, water vapour concentration measurements in the SOFC cathode are shown for different system operating conditions: a dry cathode cycle and during the introduction of water vapour. As GC cannot be used to measure water vapour in the SOFC cathode stream, a direct comparison cannot be made with the TDLS measurements.",
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Tunable diode laser based concentration measurements of water vapour and methane on a solid oxide fuel cell. / Lengden, Michael; Cunningham, Robert; Johnstone, Walter.

In: Journal of Lightwave Technology, Vol. 31, No. 9, 01.05.2013, p. 1354 - 1359.

Research output: Contribution to journalArticle

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