ef1c01993_si_004.xlsx (51.55 kB)
Experimental Investigation of Ethanol Oxidation and Development of a Reduced Reaction Mechanism for a Wide Temperature Range
dataset
posted on 2021-09-07, 17:34 authored by Simon Drost, Dennis Kaczmarek, Sven Eckart, Jürgen Herzler, Robert Schießl, Chris Fritsche, Mustapha Fikri, Burak Atakan, Tina Kasper, Hartmut Krause, Christof Schulz, Ulrich MaasRapid compression
machine, shock-tube, plug-flow reactor, and heat-flux
burner experiments were performed for stoichiometric and fuel-rich
ethanol/air mixtures. The experimental ignition delay time conditions
included temperatures from 801 to 1313 K at pressures of approximately
10, 20, and 40 bar. Species concentration profiles are measured in
a range from 423 to 973 K at a pressure of 6 bar, and laminar burning
velocities are measured in a range of 358–388 K at a pressure
of 1 bar. The experimental results were simulated using the detailed
reaction mechanism AramcoMech 3.0, showing that this mechanism is
well suited even for the large range of experimental conditions covered
in our work. Furthermore, a reduced mechanism was developed and validated
with our experimental data. The sarting point for the reduced mechanism
is an already existing reduced reaction mechanism (UCB Chen) for methane,
ethane, and propane oxidations. Additional reactions for the ethanol
subsystem were taken from AramcoMech 3.0. They were chosen according
to their importance in representing the experimental data in simulations
with the detailed AramcoMech 3.0, resulting in four additional species
and 27 additional reactions. The performance of the reduced mechanism
was compared against experimental results from this work, from the
literature, and against simulations based on the detailed reaction
mechanism. The reduced mechanism shows only minor differences in the
results compared to the detailed AramcoMech 3.0. It reproduces very
well experimentally with determined ignition delay times of ethanol/argon/nitrogen/oxygen
mixtures with inert gas/oxygen ratios between 3.76 and 7.52 (molar),
equivalence ratios between 1 and 2 in a temperature range from 848
to 1313 K, and pressures from 10 to 40 bar. Furthermore, it can also
predict with a high accuracy laminar burning velocities and species
profiles in plug-flow reactors.
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Keywords
laminar burning velocitiesflux burner experimentswell suited evendetailed reaction mechanismfour additional speciesexperimental conditions coveredspecies concentration profiles27 additional reactionsreduced reaction mechanismreduced mechanism showsdetailed aramcomech 3species profilesadditional reactionsreduced mechanismwell experimentallyaramcomech 3experimental resultsexperimental investigationexperimental dataucb chensimulated usingsarting pointpropane oxidationsoxygen ratiosoxygen mixturesminor differencesinert gasflow reactorsflow reactorchosen accordingalso predictair mixtures973 k6 bar40 bar1313 k