<i>n</i> ?Heptane oxidation in a high?pressure flow reactor

The oxidation properties of n-heptane have been investigated by conducting experiments in a laminar flow reactor at pressures 21 and 100 bar, near-stoichiometric ( ? = 0.9 $\varPhi =0.9$ ) fuel-lean conditions 0.1 =0.1$ ), temperatures 450–900 K. At bar stoichiometric conditions, negative temperature coefficient (NTC) region was detected around 600 increased pressure or oxygen concentration, the NTC behavior much less pronounced. observed concentration profiles for major species were compared to predictions with selected literature mechanisms. While all models provided satisfactory agreement fuel lean only mechanisms from NUI Polimi captured conditions. model Zhang et al. best overall detailed comparison concentrations used analysis reaction paths sensitivity under present