Abstract
Abstract The spark ignition engines are universally used for automobile applications as a result of their consistent performance and economy. Regarding SI engine utilization in such applications global issues are concerned like NOx, HC, CO. Alternative fuels are the fuels of present and future. More and more vehicles are switching to alternative fuels worldwide. Usage of different fuels also reduces emissions which has further pushed demand for eco-friendly fuels. during this direction interest is concentrated on reducing formation of NOx & PM.Exhaust Gas Recirculation (EGR) may be a technique to attenuate NOx and smoke emission. the foremost reliable alternative possibility to deal with critical emissions is to use oxygenated fuels like ethanol, butanol and ether etc. which are renewable. Experimental investigations are performed out on one cylinder four stroke petrol engine producing an influence output of 5.2 kw In this experiment ethanol blends are used alongsideconventional gasoline. The blends used are 75% Ethanol 25% petrol, 50% Ethanol 50% petrol, 75% petrol 25% Ethanol alongsidethis performance parameters like ignition timing, Brake thermal efficiency and Emissions like HC, CO, NOx are monitored.
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