TY - JOUR
T1 - Hydrogen/carbon monoxide syngas burning rates measurements in high-pressure quiescent and turbulent environment
AU - Liu, C. C.
AU - Shy, S. S.
AU - Chiu, C. W.
AU - Peng, M. W.
AU - Chung, H. J.
N1 - Funding Information:
The authors would like to appreciate the referees for their valuable comments. The continuous support by the National Science Council, Taiwan under the grants ( NSC 97-2221-E-008-085-MY3 ; 98-2221-E-008-058-MY3 ; 98-3114-E-008- 004 ) is also gratefully acknowledged.
PY - 2011/7
Y1 - 2011/7
N2 - A high-pressure, double-chamber, fan-stirred, large-scale explosion facility is proposed for measurements of laminar and turbulent burning velocities, SL and ST, of centrally-ignited hydrogen and carbon monoxide syngas/air mixtures over an initial pressure range of p = 0.1-1.0 MPa. Results show that lean syngas laminar flames at elevated pressure are highly unstable resulting in cellular structures all over the expanding flame front surface, where SL∼p-0.15 having a relatively modest decrease with pressure as compared to lean methane flames where SL∼p-0.50. Contrarily, as to lean syngas turbulent flames, values of ST increase with increasing pressure (ST∼p0.15) at a fixed r.m.s. turbulent fluctuating velocity (u′ ≈ 1.4 m/s). Moreover, it is also shown that increasing u′/SL is still a way much more effective in increasing values of ST/SL than increasing pressure. Finally, discussions are offered and area for further studies identified.
AB - A high-pressure, double-chamber, fan-stirred, large-scale explosion facility is proposed for measurements of laminar and turbulent burning velocities, SL and ST, of centrally-ignited hydrogen and carbon monoxide syngas/air mixtures over an initial pressure range of p = 0.1-1.0 MPa. Results show that lean syngas laminar flames at elevated pressure are highly unstable resulting in cellular structures all over the expanding flame front surface, where SL∼p-0.15 having a relatively modest decrease with pressure as compared to lean methane flames where SL∼p-0.50. Contrarily, as to lean syngas turbulent flames, values of ST increase with increasing pressure (ST∼p0.15) at a fixed r.m.s. turbulent fluctuating velocity (u′ ≈ 1.4 m/s). Moreover, it is also shown that increasing u′/SL is still a way much more effective in increasing values of ST/SL than increasing pressure. Finally, discussions are offered and area for further studies identified.
KW - Cellular structures
KW - Double-chamber fan-stirred explosion facility
KW - High-pressure lean premixed turublent combustion
KW - Hydrogen/carbon monoxide syngas
KW - Laminar and turbulent burning velocities
UR - http://www.scopus.com/inward/record.url?scp=79958144427&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2011.04.087
DO - 10.1016/j.ijhydene.2011.04.087
M3 - 期刊論文
AN - SCOPUS:79958144427
SN - 0360-3199
VL - 36
SP - 8595
EP - 8603
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 14
ER -
