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

8 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.
Original languageEnglish
Pages (from-to)1354 - 1359
Number of pages7
JournalJournal of Lightwave Technology
Volume31
Issue number9
DOIs
Publication statusPublished - 1 May 2013

Keywords

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

Fingerprint Dive into the research topics of 'Tunable diode laser based concentration measurements of water vapour and methane on a solid oxide fuel cell'. Together they form a unique fingerprint.

Cite this