Emission Control Strategy on GCI Engines Fueled with Biodiesel Blended in Gasoline

Emission control strategy on GCI engines fueled with 5% by volume of biodiesel blended in gasoline was conducted in this study. The study was conducted using a 1-cylinder DI-CI engine. The engine was fueled with 5% by volume of biodiesel blended in gasoline. GCI combustion with the pilot, and main direct injections were applied in this study. Various EGR rate and intake pressure were also adapted to explore their effects on combustion and exhaust pollution control of the CI engines. It is found that gasoline-biodiesel blend with GCI combustion mode and various parameters especially EGR and intake boosting rate takes effect on the improvement of combustion characteristics which is closely related to HC, CO, NOx, and smoke emissions, respectively.