TY - GEN
T1 - An experimental and modeling study of formaldehyde and 1,3,5-trioxane flame chemistry
AU - Santner, Jeffrey S.
AU - Haas, Francis M.
AU - Dryer, Frederick L.
AU - Ju, Yiguang
PY - 2013
Y1 - 2013
N2 - Formaldehyde is a key species produced during oxidation of virtually all hydrocarbon and oxygenated fuels, and it is also a regulated hazardous air pollutant. An improved understanding of its formation and destruction chemistry is therefore vital to the study of many energy conversion processes. To this end, this work experimentally and numerically investigates the flame chemistry of formaldehyde (CH2O) at atmospheric pressure. The laminar burning rate of 1,3,5-trioxane/O2/N2 mixtures is measured in outwardly propagating spherical flames, where high concentrations of formaldehyde are generated early in the flame structure from decomposition of 1,3,5-trioxane. Though laminar burning rate predictions of several combustion kinetic models vary significantly, simulations agree that observables measured at the present experimental conditions are particularly sensitive to the competition between reactions HCO+O2=CO+HO2 and HCO(+M)=H+CO(+M). The present experimental measurements provide accurate data sensitized to these important HCO reactions, and are a valuable constraint for small molecule kinetic models.
AB - Formaldehyde is a key species produced during oxidation of virtually all hydrocarbon and oxygenated fuels, and it is also a regulated hazardous air pollutant. An improved understanding of its formation and destruction chemistry is therefore vital to the study of many energy conversion processes. To this end, this work experimentally and numerically investigates the flame chemistry of formaldehyde (CH2O) at atmospheric pressure. The laminar burning rate of 1,3,5-trioxane/O2/N2 mixtures is measured in outwardly propagating spherical flames, where high concentrations of formaldehyde are generated early in the flame structure from decomposition of 1,3,5-trioxane. Though laminar burning rate predictions of several combustion kinetic models vary significantly, simulations agree that observables measured at the present experimental conditions are particularly sensitive to the competition between reactions HCO+O2=CO+HO2 and HCO(+M)=H+CO(+M). The present experimental measurements provide accurate data sensitized to these important HCO reactions, and are a valuable constraint for small molecule kinetic models.
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M3 - Conference contribution
AN - SCOPUS:84946211358
T3 - Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
SP - 129
EP - 134
BT - Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
PB - Combustion Institute
T2 - Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
Y2 - 13 October 2013 through 16 October 2013
ER -