Exhaust Emissions from a Single-Cylinder Engine Fueled with Gasoline, Methanol, and Ethanol

Abstract

Abstract Measurements of the emissions of nitrogen oxide and unburned hydrocarbons, as well as the power output and fuel consumption, have been made for a range of air-fuel ratios with gasoline (Indolene), methanol, and ethanol as fuels. Comparison of the results shows that gasoline produces more unburned hydrocarbons than methanol, but about the same as ethanol. Nitrogen oxide emission is about the same for the two alcohols, but less than those for gasoline.