Prediction of ethanol-gasoline blend fuelled spark ignition engine performance using dimensional analysis

Ethanol is blended with pure gasoline for use as a fuel in engine. It required to conduct physical tests on engines observe the engine performance these blends. However, mathematical equations provide quick, effective, and accurate alternate tests. may not be possible develop relations specific operating conditions of fuel. dimensional analysis approach model. Dimensional used this research work deriving correlations Indicated Mean Effective Pressure, Brake Power, Specific Fuel Consumption parameters. Their are established speed, load engine, calorific value fractions, clearance volume independent Buckingham π theorem formulating having proportionality sign showing each dependent parameter all four Regression eliminating signs from developed. Mathematical developed by accurate. Root Square errors have noted minimum 4.19 maximum 8.56 Power. The average percentage less than 1%.