Flame behaviors of propane/air premixed flame propagation in a closed rectangular duct with a 90° bend

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journalNot applicable

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Author(s)

  • Xuechao He
  • Jinhua Sun
  • K. K. Yuen
  • Yibin Ding
  • Sining Chen

Detail(s)

Original languageEnglish
Article number71260P
Journal / PublicationProceedings of SPIE - The International Society for Optical Engineering
Volume7126
Publication statusPublished - 2009

Conference

Title28th International Congress on High-Speed Imaging and Photonics
PlaceAustralia
CityCanberra
Period9 - 14 November 2008

Abstract

Experiments of flame propagation in a small, closed rectangular duct with a 90° bend were performed for a propane-air mixture. The high speed camera and Schlieren techniques were used to record images of flame propagation process in the combustion pipe. Meanwhile, the fine thermocouples and ion current probes were applied to measure the temperature distribution and reaction intensity of combustion. The characteristics of propane-air flame and its micro structure were analyzed in detail by the experimental results. In the test, the special tulip flame formation was observed. Around the bend, the flame tip proceeded more quickly at the lower side with the flame front elongated toward the axial direction. And transition to turbulent flame occurred. It was suggested that fluctuations of velocity, ion current and temperature were mainly due to the comprehensive effects of multi-wave and the intense of turbulent combustion. © 2009 SPIE.

Research Area(s)

  • Flame structure, High speed Schlieren image, Premixed flame, Turbulent combustion

Citation Format(s)

Flame behaviors of propane/air premixed flame propagation in a closed rectangular duct with a 90° bend. / He, Xuechao; Sun, Jinhua; Yuen, K. K.; Ding, Yibin; Chen, Sining.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7126, 71260P, 2009.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journalNot applicable