Temperature-field measurements of a premixed butane/air circular impinging-flame using reference-beam interferometry

J. A. Qi, Chun Wah Leung, Wai On Wong, S. D. Probert

Research output: Journal article publicationJournal articleAcademic researchpeer-review

35 Citations (Scopus)


Reference-beam interferometry (RBI) was applied to study the axisymmetric temperature fields of a small-scale, low Reynolds-number, low-pressure and fuel-rich premixed butane/air circular-flame jet, when it was impinging vertically upwards onto a horizontal copper plate. By maintaining a Reynolds number, Re, of 500 and an equivalence ratio, φ{symbol}, of 1.8, interferograms of the impinging-flame jet were obtained for various nozzle-to-plate-distances. Temperature fields of the flame were then determined using the inverse Abel transformation from the obtained interferograms. Temperatures at several locations were measured experimentally with a T-type thermocouple: they were used as a reference to help in the determination as well as the validation. In the present study, a non-contact method has been successfully developed to measure the temperature fields of a circular impinging gas-fired flame jet.
Original languageEnglish
Pages (from-to)1307-1316
Number of pages10
JournalApplied Energy
Issue number12
Publication statusPublished - 1 Jan 2006


  • Impinging premixed butane/air flame
  • Inverse Abel transform
  • Reference-beam interferometry
  • Temperature fields

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • General Energy


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