TY - CONF
T1 - Study of the low-temperature reactivity of large n-alkanes through cool diffusion flame extinction
AU - Reuter, Christopher B.
AU - Lee, Minhyeok
AU - Won, Sang Hee
AU - Ju, Yiguang
N1 - Funding Information:
This work is supported by NSF grant CBET-1507358, NASA ISS Post-Graduate award NNX15AB67G, and NASA microgravity grant NNX16AK07G. CBR acknowledges support
Funding Information:
This work is supported by NSF grant CBET-1507358, NASA ISS Post-Graduate award NNX15AB67G, and NASA microgravity grant NNX16AK07G. CBR acknowledges support from the DoD National Defense Science and Engineering Graduate (NDSEG) Fellowship program.
Publisher Copyright:
© 2017 Eastern States Section of the Combustion Institute. All rights reserved.
PY - 2017
Y1 - 2017
N2 - Large n-alkanes are notable components of many common transportation fuels and possess rich low-temperature reactivity. However, few studies have been performed in which the n-alkane low-temperature chemistry is coupled with transport and heat release. This study addresses this through the measurement of the extinction limits of cool diffusion flames in a counterflow burner. A clear trend is observed in that the heavier n-alkanes produce stronger cool flames, which differs from the insensitivity of n-alkane hot flames to fuel size. Furthermore, there is little agreement between different chemical kinetic models in terms of their predicted cool flame extinction limits. Reduced models in particular struggle to describe cool flame behavior accurately due to the substantial number of reactions involving large molecules that contribute to the cool flame heat release. The results of this study show that well-defined measurements of cool flames can serve as valuable validation targets in the future development of low-temperature chemical kinetic models.
AB - Large n-alkanes are notable components of many common transportation fuels and possess rich low-temperature reactivity. However, few studies have been performed in which the n-alkane low-temperature chemistry is coupled with transport and heat release. This study addresses this through the measurement of the extinction limits of cool diffusion flames in a counterflow burner. A clear trend is observed in that the heavier n-alkanes produce stronger cool flames, which differs from the insensitivity of n-alkane hot flames to fuel size. Furthermore, there is little agreement between different chemical kinetic models in terms of their predicted cool flame extinction limits. Reduced models in particular struggle to describe cool flame behavior accurately due to the substantial number of reactions involving large molecules that contribute to the cool flame heat release. The results of this study show that well-defined measurements of cool flames can serve as valuable validation targets in the future development of low-temperature chemical kinetic models.
KW - Cool flame
KW - Counterflow diffusion flame
KW - Extinction limit
KW - N-alkane
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M3 - Paper
AN - SCOPUS:85048897145
T2 - 10th U.S. National Combustion Meeting
Y2 - 23 April 2017 through 26 April 2017
ER -