Effect of low carbon biofuel on carbon emissions in biodiesel fueled CI engine

The ill effects of carbon dioxide on global warming are well known, and the transportation segment is among the major emitter of carbon dioxide (CO₂). Use of renewable fuels in diesel engines can reduce the emission as they recycle carbon dioxide. In this context, the present study aims to achieve low carbon emissions from the engine exhaust by blending different fuels having low carbon content. Karanja oil methyl ester was selected as the base fuel and blends of low carbon content vegetable oils namely eucalyptus, camphor, pine, and orange oil were prepared. Methyl ester was also blended with additives like acetone, diethyl ether, and monoethanolamine. The engine was also operated in dual fuel mode with hydrogen and oxyhydrogen. The results reveal that the lowest carbon emissions were observed with hydrogen induction technique.