Title: Autoignition of Butanol Isomers at Low to Intermediate Temperature and Elevated Pressure,
Abstract: Autoignition delay experiments for the isomers of butanol, including n-,
sec-, tert-, and iso-butanol, have been performed using a heated rapid
compression machine. For a compressed pressure of 15 bar, the compressed
temperatures have been varied in the range of 725-855 K for all the
stoichiometric fuel/oxidizer mixtures. Over the conditions investigated in this
study, the ignition delay decreases monotonically as temperature increases and
exhibits single-stage characteristics. Experimental ignition delays are also
compared to simulations computed using three kinetic mechanisms available in
the literature. Reasonable agreement is found for three isomers (tert-, iso-,
and n-butanol).