We know that Ethanol as a gasoline blend has helped to reduce dependence on oil import and harmful vehicular emission. Due to the globalization impact as well as controlling the automobile exhaust emission, the automobile companies are introducing Multi Point Fuel Injector (MPFI) and Gasoline Direct Injection (GDI) respectively. However, introducing ethanol as alternative automobile fuel (E10, E85), the proper mixture ethanol and air mixture (for oxygenate compound), need of Carburetor for the function of the I C Engine combustion process. Because, it is of utmost necessity that ethanol (20% ethanol and 80% petrol) supplied to the engine should be completely vaporized before actual combustion. This is possible only when it is broken up into a fine spray, i.e. atomized. The process of atomization takes place normally in the inlet manifold. Carburetion process consists of vaporizing ethanol; mixing thoroughly with air and distributing the ethanol-air mixture evenly into the cylinder.

DR. PORAG KALITA ," Alternative Fuel for I.C. Engine: Review the Effect from Ethanol in Carburetor”, International Journal of Computer Engineering In Research Trends, Volume 3, Issue 7, July-2016, pp. 371-376