TY - JOUR
T1 - Experimental study on turbulent premixed flames of syngas oxyfuel mixtures at high pressure
AU - Wang, Jinhua
AU - Zhang, Meng
AU - Xie, Yongliang
AU - Wei, Zhilong
AU - Huang, Zuohua
AU - Kobayashi, Hideaki
PY - 2013/10
Y1 - 2013/10
N2 - An experimental study on turbulent premixed CO/H2/CO2/O2 flames as a model of syngas combustion was conducted to understand the flame-turbulence interaction of syngas oxyfuel turbulent premixed flames at high pressure. The instantaneous flame front structure of the turbulent premixed flames at high pressure was obtained with the OH-PLIF technique. The quantitative flame front structure parameters like flame volume, flame surface density and flame front scale were derived. The flame-turbulence interaction was analyzed for various mixtures. The results show that the flame front structure of syngas flames is much finer and has a smaller scale compared with that of CH4/air flame. The syngas flames with the narrow heat release region tend to show combustion oscillation in the premixed-type gas turbine combustor. The bending of ST/SL with u'/SL is not observed for CO/H2/CO2/air flames while it is observed for other flames, and one reason for this could be that the wrinkle of the flame front due to turbulence is limited by the flame intrinsic instability.
AB - An experimental study on turbulent premixed CO/H2/CO2/O2 flames as a model of syngas combustion was conducted to understand the flame-turbulence interaction of syngas oxyfuel turbulent premixed flames at high pressure. The instantaneous flame front structure of the turbulent premixed flames at high pressure was obtained with the OH-PLIF technique. The quantitative flame front structure parameters like flame volume, flame surface density and flame front scale were derived. The flame-turbulence interaction was analyzed for various mixtures. The results show that the flame front structure of syngas flames is much finer and has a smaller scale compared with that of CH4/air flame. The syngas flames with the narrow heat release region tend to show combustion oscillation in the premixed-type gas turbine combustor. The bending of ST/SL with u'/SL is not observed for CO/H2/CO2/air flames while it is observed for other flames, and one reason for this could be that the wrinkle of the flame front due to turbulence is limited by the flame intrinsic instability.
KW - High pressure
KW - Syngas
KW - Turbulent burning velocity
KW - Turbulent premixed flame
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U2 - 10.7652/xjtuxb201310015
DO - 10.7652/xjtuxb201310015
M3 - Article
AN - SCOPUS:84890753417
SN - 0253-987X
VL - 47
SP - 87
EP - 90
JO - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
JF - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
IS - 10
ER -