Review of performance and emmissions characteristics of bio-additive fuel on SI engine fuelled by biopetrol

摘要

Bio-additive is biodegradable and produces less air pollution thus significant for replacing the limited fossil fuels and reducing threats to the environment from exhaust emissions and global warming. Bio-additives can remarkably improve the fuel economy for SI engine and some of the bio-additive has the ability to reduce the total CO2 emission from the internal petrol engine.This review paper focuses to determine a new approach in potential of bio-additives blends operating with bio-petrol on performance and emissions of a spark ignition engine. It is shown that the variant in bio-additives blending ratio and engine operational condition are reduced engine-out emissions and increased efficiency. It seems that the bio-additives can increase the maximum cylinder combustion pressure, improve exhaust emissions and largely reduce the friction coefficient. The review concludes that the additive usage in bio-petrol is inseparable for the better engine performance and emission control and further research is needed to develop bio-petrol specific additives