Record Details

Experimental study on flame pattern formation and combustion completeness in a radial microchannel

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Experimental study on flame pattern formation and combustion completeness in a radial microchannel
 
Creator FAN, A
MINAEV, S
KUMAR, S
LIU, W
MARUTA, K
 
Subject gas-turbine engine
micro-combustor
mixtures
systems
microreactor
generation
cfd
 
Description Combustion behavior in a radial microchannel with a gap of 2.0 mm and a diameter of 50 mm was experimentally investigated. In order to simulate the heat recirculation, which is an essential strategy in microscale combustion devices, positive temperature gradients along the radial flow direction were given to the microchannel by an external heat source. A methane-air mixture was supplied from the center of the top plate through a 4.0 mm diameter delivery tube. A variety of flame patterns, including a stable circular flame and several unstable flame patterns termed unstable circular flame, single and double pelton-like flames, traveling flame and triple flame, were observed in the experiments. The regime diagram of all these flame patterns is presented in this paper. Some characteristics of the various flame patterns, such as the radii of stable and unstable circular flames, major combustion products and combustion efficiencies of all these flame patterns, were also investigated. Furthermore, the effect of the heat recirculation on combustion stability was studied by changing the wall temperature levels.
 
Publisher IOP PUBLISHING LTD
 
Date 2011-08-03T17:50:11Z
2011-12-26T12:54:19Z
2011-12-27T05:42:01Z
2011-08-03T17:50:11Z
2011-12-26T12:54:19Z
2011-12-27T05:42:01Z
2007
 
Type Article
 
Identifier JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 17(12), 2398-2406
0960-1317
http://dx.doi.org/10.1088/0960-1317/17/12/002
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9104
http://hdl.handle.net/10054/9104
 
Language en