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Two premixed laminar flames of PRF90 (Primary Reference Fuel, iso-octane:n-heptane is 9:1) blended with ethanol and MTBE (Methyl Tert-Butyl Ether) respectively were studied, using molecular-beam sampling technology combining with tunable synchrotron VUV (Vacuum Ultra-Violet) photoionization mass spectrometry. Mole fraction profiles of species including reactants, intermediates and products were derived...
The effects of methanol and ethanol on a laminar premixed low-pressure (30Torr) n-heptane/toluene flame were investigated by using synchrotron photoionization and molecular-beam mass spectrometry techniques. The overall carbon flux was maintained constant (0.6g/min) and the equivalence ratio was kept at 2.0 for all the tested flames. Mole fraction profiles of major and intermediate species including...
It has been found in previous experimental studies that the ignition of diesel or n-heptane is delayed by methanol addition. However, detailed analysis of the interaction between the two fuels especially under low temperature oxidation has not been reported previously. In order to discover the chemical mechanism and create a skeletal model which can be coupled with 3-D simulation software efficiently,...
A molecular-beam flame-sampling photoionization mass spectrometer, employing synchrotron radiation, was applied to detect new intermediates and to measure mole fractions in the low-pressure laminar premixed stoichiometric ratio dimethyl ether (DME)/O 2 /Ar and ethanol/O 2 /Ar flames respectively. With the help of the means mentioned above, flame species of the two fuels, including...
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