Laminar Burning Velocities of Methanol, Isooctane and Isooctane/Methanol Blends

Publisher Website
Google Scholar
Abstract
Laminar burning velocities of isooctane, methanol, 90 percent isooctane/l0 percent methanol and 80 percent isooctane/20 percent methanol (by liquid volume) in air have been determined over wide ranges of mixture strength and initial mixture temperature using a constant volume bomb. Measurements were made during the constant pressure combustion period and a density correction scheme was employed for calculation of burning rates from measured data. It was found that isooctane/methanol blends yield slower burning velocities than those of methanol and isooctane alone in air. Causes of this inhibition mechanism are discussed. Variation of burning velocity of methanol and isooctane with unburned mixture temperature was compared to the data of previous investigators. Measured results were correlated and expressions, for the fuels considered, presented for the ranges of φ = 0.7-1.4 and Tu –300-600K at 100 kPa pressure.