Chemical kinetic mechanism of compression ignition with PRF (iso-octane/ n-heptane) and NTF (toluene/ n-heptane) is investigated according to crank angle resolved in-cylinder sampling experiments. Profiles of two-stage consumption of fuel components in accordance with the timings of heat releases have been obtained. As well, production and consumption of intermediate species were observed. It was found that toluene consumption at the first stage is considerably less than that of n-heptane, whereas iso-octane consumption is comparable to that of n-heptane, which is accounted for by the smaller rate constant of toluene with OH. N-heptane and iso-octane are considered to produce formaldehyde; however, toluene has no or little contribution.
Comparison of PRF and toluene/n-heptane mixture fuel in the mechanism of compression ignition using CA resolved sampling
Sae Int. J. Fuels Lubr
Sae International Journal of Fuels and Lubricants
SAE International Powertrains, Fuels and Lubricants Meeting ; 2011
Sae International Journal of Fuels and Lubricants ; 5 , 1 ; 34-40
2011-08-30
7 pages
Conference paper
English
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