Abstract
Soot formation characteristics of the three-component gasoline surrogate fuel, which is composed of iso‒octane, toluene and n‒heptane was experimentally studied using a standard shock tube. The experimental results show that soot yield decreases with increases in the rate of oxygen addition. The bell peak temperature at which the maximum soot yield is obtained tends to decrease with increase of the oxygen addition. With reference to soot formation characteristics of the single component, maximum soot yield is obtained around the bell-peak temperature of 1900K for iso-octane and nheptane, and of 1800K for toluene. Iso-octane and toluene have comparable soot yield around the bell-peak temperature.