Experimental investigation on combustion and emission of CI engine fueled with gasoline-biodiesel blends in early injection HCCI mode
Keywords:
HCCI, Emission, Gasoline, Biodiesel, EGRAbstract
The experimental investigation of combustion and emission of CI engines fueled with gasoline and biodiesel blends was conducted in this study. The study was conducted using a single-cylinder direct-injection diesel engine fueled with 5% biodiesel proportion in gasoline fuel blends compared with 100% neat diesel fuel. A HCCI with early direct injection was applied in this study. Some initial control parameters such as intake temperature, EGR rate and intake pressure were also adjusted to investigate their influences on combustion and emissions of this CI engine. It is found that gasoline-biodiesel blends with HCCI combustion mode and initial engine parameters especially intake boosting rate takes effect on the improvement of combustion characteristics which is closely tied to HC, CO and NOx emissions, respectively.
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