Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18200
Title: Flame stability of rod stabilised premixed butane/air flames
Authors: Drkos, M
Leung, CW 
Cheung, CS 
Keywords: Butane/air premixed flame
Flame stability
Inverted and partially inverted flames
Regular
Rod stabilisation
Issue Date: 2009
Publisher: Maney Publishing
Source: Journal of the energy institute, 2009, v. 82, no. 1, p. 1-10 How to cite?
Journal: Journal of the Energy Institute 
Abstract: Regions of flame stability were obtained experimentally for a premixed butane/air flame stabilised by an axially mounted solid rod for low Reynolds numbers (Re<3600). Equivalence ratios ranging from 0.4 to 3.0 were applied in the present study. There were two non-dimensional parameters proposed to represent the variation of geometrical configurations: rod protrusion BR (0-2) and rod to tube ratio BT (0.51-0.8). Inverted, partially inverted and regular (Bunsen) flames were fundamental flame types identified across the stable regions. Inter-regions wore characterised by the existence of more than one stable flame type, primarily depending on the axial and radial distances of the ignition source from the burner port. The size of the unstable region extended with increasing BR, and the effect of BT showed a similar trend. The use of rod of smaller diameter extended the flashback region, whereas blow-off limits were less dependent on these geometrical parameters. The rod stabilised method enabled the premixed flame to operate with a very fuel lean mixture.
URI: http://hdl.handle.net/10397/18200
DOI: 10.1179/014426009X394017
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