Diesel Combustion and Emission Study using Biomass Fuel in a Highly Boosted Single Cylinder Engine (Fourth Report) - Result of Changing Injection Pressure on Exhaust Emission at medium load

摘要

Diesel emissions and engine performance are studied by using biomass fuel with high boost, wide range and high EGR rate in single cylinder engine and the high pressure fuel injection was used here. The experiments were carried out to study effect on exhaust emissions by changing fuel injection pressures from 90MPa to 200MPa and with/without oxidation catalyst. Soot emissions increased at low injection pressure 90MPa in low excess air ratio, but soot emissions ceased at the high injection pressure such as 150MPa. In biomass fuel the oxidation catalyst has great effect on the reduction of SOF in PM.