TY - JOUR
T1 - An experimental study of methane-oxygen-carbon dioxide premixed flame dynamics in non-adiabatic cylinderical meso-scale reactors with the backward facing step
AU - Baigmohammadi, Mohammadreza
AU - Tabejamaat, Sadegh
AU - Farsiani, Yasaman
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - In the present study, we experimentally evaluated the effects of geometrical parameters, Reynolds number, dilution percent, and equivalence ratio on methane-oxygen-carbon dioxide flame dynamics in non-adiabatic cylindrical meso-scale reactors with the backward facing step. Five flame regimes of blow-out, marginal, stationary (asymmetric and spinning), RERI, and flashback were observed during the tests. The results showed that adding carbon dioxide to methane-oxygen mixture could extend RERI flame regimes in the meso-scale reactors. Moreover, it was shown that the presence of RERI flame regime could lead to more uniform temperature distribution on the outer surface of the lengthy meso-scale reactors as compared to the stationary flame regimes. Also, it was demonstrated that increasing the average flow speed in the meso-scale reactors decreased the average frequency of RERI flame regimes.
AB - In the present study, we experimentally evaluated the effects of geometrical parameters, Reynolds number, dilution percent, and equivalence ratio on methane-oxygen-carbon dioxide flame dynamics in non-adiabatic cylindrical meso-scale reactors with the backward facing step. Five flame regimes of blow-out, marginal, stationary (asymmetric and spinning), RERI, and flashback were observed during the tests. The results showed that adding carbon dioxide to methane-oxygen mixture could extend RERI flame regimes in the meso-scale reactors. Moreover, it was shown that the presence of RERI flame regime could lead to more uniform temperature distribution on the outer surface of the lengthy meso-scale reactors as compared to the stationary flame regimes. Also, it was demonstrated that increasing the average flow speed in the meso-scale reactors decreased the average frequency of RERI flame regimes.
KW - Carbon dioxide
KW - Combustion
KW - Flame
KW - Methane
KW - Oxygen
KW - Reactor
UR - http://www.scopus.com/inward/record.url?scp=84930941045&partnerID=8YFLogxK
U2 - 10.1016/j.cep.2015.05.013
DO - 10.1016/j.cep.2015.05.013
M3 - Article
AN - SCOPUS:84930941045
SN - 0255-2701
VL - 95
SP - 105
EP - 123
JO - Chemical Engineering and Processing : Process Intensification
JF - Chemical Engineering and Processing : Process Intensification
ER -