Stability of partially premixed tubular burner flames with co-flow and external swirl-air

A. Zeenathul Farida, Kumaran Kannaiyan, U. S P Shet, T. Sundararajan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the stability data of partially premixed LPG-air flames issuing from a central pipe of 9.5 mm diameter in a co-axial burner. The burner is operated in co-flow or swirl mode of secondary air surrounding the flame base. For the range of fuel flow rates studied, the results show that lift, drop-back and blow-out velocities are higher for the flames operating with external swirl-air. Flame stability is seen to deteriorate in co-flow mode and flame drop-back is also not exhibited. The higher blow-off velocities observed in swirl mode are attributed to higher residence time for the reacting mixture around the flame base. The stability data obtained are found to be consistent with the flame stability models in the literature.

Original languageEnglish
Title of host publication5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday
Pages433-436
Number of pages4
Publication statusPublished - 2005
Externally publishedYes
Event5th Asia-Pacific Conference on Combustion, ASPACC 2005 - Adelaide, SA, Australia
Duration: 17 Jul 200520 Jul 2005

Other

Other5th Asia-Pacific Conference on Combustion, ASPACC 2005
CountryAustralia
CityAdelaide, SA
Period17/7/0520/7/05

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ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Zeenathul Farida, A., Kannaiyan, K., Shet, U. S. P., & Sundararajan, T. (2005). Stability of partially premixed tubular burner flames with co-flow and external swirl-air. In 5th Asia-Pacific Conference on Combustion, ASPACC 2005: Celebrating Prof. Bob Bilger's 70th Birthday (pp. 433-436)