TY - JOUR
T1 - Measurement and correlation of laminar flame speeds of CO and C2 hydrocarbons with hydrogen addition at atmospheric and elevated pressures
AU - Wu, Fujia
AU - Kelley, Andrew P.
AU - Tang, Chenglong
AU - Zhu, Delin
AU - Law, Chung K.
N1 - Funding Information:
The present study was supported by the Combustion Energy Frontier Research Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science and Office of Basic Energy Sciences under Award No. DE-SC0001198 , and by the Air Force Office of Scientific Research .
PY - 2011/10
Y1 - 2011/10
N2 - The laminar flame speeds of mixtures of ethane, ethylene, acetylene, and carbon monoxide with small amount of hydrogen addition at atmospheric and elevated pressures were experimentally and computationally determined. It was found that the approximate linear correlation identified previously between the laminar flame speeds and an appropriate definition of the amount of hydrogen addition for methane, propane and n-butane at atmospheric pressure also largely applies to ethane, ethylene, and acetylene at atmospheric as well as elevated pressures. The linear correlation, however, does not hold for carbon monoxide, at all pressures, due to the strong catalytic effect of hydrogen on the oxidation of carbon monoxide. A mechanistic analysis shows that both the Arrhenius and diffusive contributions to the laminar flame speed are nearly linear functions of the hydrogen addition, which explains this overall approximate linear correlation.
AB - The laminar flame speeds of mixtures of ethane, ethylene, acetylene, and carbon monoxide with small amount of hydrogen addition at atmospheric and elevated pressures were experimentally and computationally determined. It was found that the approximate linear correlation identified previously between the laminar flame speeds and an appropriate definition of the amount of hydrogen addition for methane, propane and n-butane at atmospheric pressure also largely applies to ethane, ethylene, and acetylene at atmospheric as well as elevated pressures. The linear correlation, however, does not hold for carbon monoxide, at all pressures, due to the strong catalytic effect of hydrogen on the oxidation of carbon monoxide. A mechanistic analysis shows that both the Arrhenius and diffusive contributions to the laminar flame speed are nearly linear functions of the hydrogen addition, which explains this overall approximate linear correlation.
KW - Elevated pressure combustion
KW - Hydrogen addition
KW - Laminar flame speeds
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U2 - 10.1016/j.ijhydene.2011.07.021
DO - 10.1016/j.ijhydene.2011.07.021
M3 - Article
AN - SCOPUS:80052951237
SN - 0360-3199
VL - 36
SP - 13171
EP - 13180
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 20
ER -