Perpustakaan Digital ITB

The purpose of this research is to investigate the effect of the use of ethanol and gasoline blended fuels with different blend rates E0, E5, E10, and E15 to performance, exhaust emissions of a commercial Spark Ignition (SI) engine with open–loop fuel control systems which have been operating in many developing countries. Oxy-hydrogen (HHO) was used as an additive fuel to find the effect on performance and emission at idle speed with low load. The results indicated that the performance and the exhaust gas emissions depending on the operating parameters of the engine and the fuel. However, air/fuel ratio value (λ) is most importantly placed on CO, NOX and HC emissions. The effect of HHO as a fuel additive for ethanol and gasoline blended fuels in SI engines and the techniques used to produce hydrogen from water by electro-chemical processes on hydrogen generators to connect them to vehicles directly in the car were observed that by slightly reducing fuel consumption of ethanol–gasoline any blends and increased thermal efficiency, reduced emissions.