Technical Paper
Fuel Effects on Soot Processes of Fuel Jets at DI Diesel Conditions
2003-10-27
2003-01-3080
The effects of fuel composition on soot processes in diesel fuel jets were studied in an optically-accessible constant-volume combustion vessel at experimental conditions typical of a DI diesel. Four fuel blends used in recent engine studies were investigated, including three oxygenates and one diesel reference fuel: (1) T70, a fuel blend containing the oxygenate tetraethoxy-propane; (2) BM88, a fuel blend containing the oxygenate dibutyl-maleate; (3) GE80, a fuel blend containing the oxygenate tri-propylene-glycol-methyl-ether and (4) CN80, a diesel reference fuel composed of an n-hexadecane and heptamethyl-nonane mixture. Measurements of the soot distribution along the axis of quasi-steady fuel jets were performed using laser extinction and planar laser-induced incandescence (PLII) and were compared to previous results using a #2 diesel fuel (D2).