Performance and emission charactersistics of eucalyptus oil and gasoline blend in four sroke multi cylinder petrol engine

摘要

Petrol engines are very popular from the time of their invention; most of the automobiles are run by these engines. Mainly because of its simplicity and easy operations they are the choices for a number of researches but due to lack of crude oil reserves and increasing price of petrol alternative fuels are coming to picture. Today Most of the alternative fuels are biomass derived and easily available. Many alternative fuels blends has been introduce in past and they gave very satisfying results. Therefore, in this project the eucalyptus oil which is high octane biomass derived fuel is blended with petrol 15% by volume Eu15 and used as fuel in four stroke multi cylinder petrol engine. The performance and emission characteristics of the engine were studied. The results show the reduction in consumption of fuel as the brake specific fuel consumption was found to decrease. The improvement in brake thermal efficiency is also observed. While the emission parameters were also improved, both HC and CO emissions were significantly reduces as the load was increasing.