TY - JOUR
T1 - Experimental and numerical determination of laminar flame speeds of methane/(Ar, N2, CO2)-air mixtures as function of stoichiometry, pressure, and flame temperature
AU - Zhu, D. L.
AU - Egolfopoulos, F. N.
AU - Law, C. K.
N1 - Funding Information:
This research was supported by the Division of Basic Energy Sciences, Department of Energy under Grant No. DE-FG03-87ER13274 and the Air Force Office of Scientific Research under Grant No. 85-0147. Additional computer time was provided by the NSF Supercomputer Center at the University of California at San Diego. We thank Dr. David B. Smith of British Gas who suggested the potential usefulness of flame speed data determined as a function of flame temperature.
PY - 1989
Y1 - 1989
N2 - By using the counterflow method, the laminar flame speeds of methane/(Ar, N2, CO2)-air mixtures have been accurately and extensively determined over the stoichiometric range from very lean to very rich, the pressure range from 0.25 to 2 atm, and flame temperature range from 1,550 to 2,250 K; independent variation in the flame temperature is achieved by substituting nitrogen in the air by an equal amount of argon or carbon dioxide. These data are expected to be useful for the partial validation of proposed kinetic mechanisms. In the present study numerical simulation of the experimental flame speeds has been conducted by using a C1 mechanism and a full C2 mechanism. The calculated results agree well with the experimental data, for both the C1 and C2 mechanisms, except for very rich mixtures for which there is substantial overprediction by the C2 mechanism. Sensitivity analyses have also been performed where appropriate for enhanced insight into the controlling elementary reactions.
AB - By using the counterflow method, the laminar flame speeds of methane/(Ar, N2, CO2)-air mixtures have been accurately and extensively determined over the stoichiometric range from very lean to very rich, the pressure range from 0.25 to 2 atm, and flame temperature range from 1,550 to 2,250 K; independent variation in the flame temperature is achieved by substituting nitrogen in the air by an equal amount of argon or carbon dioxide. These data are expected to be useful for the partial validation of proposed kinetic mechanisms. In the present study numerical simulation of the experimental flame speeds has been conducted by using a C1 mechanism and a full C2 mechanism. The calculated results agree well with the experimental data, for both the C1 and C2 mechanisms, except for very rich mixtures for which there is substantial overprediction by the C2 mechanism. Sensitivity analyses have also been performed where appropriate for enhanced insight into the controlling elementary reactions.
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U2 - 10.1016/S0082-0784(89)80164-X
DO - 10.1016/S0082-0784(89)80164-X
M3 - Article
AN - SCOPUS:58149366467
SN - 0082-0784
VL - 22
SP - 1537
EP - 1545
JO - Symposium (International) on Combustion
JF - Symposium (International) on Combustion
IS - 1
ER -