AN EXPERIMENTAL STUDY ON PERFORMANCE AND EMISSION CHARACTERISTICS OF A BIOETHANOL FUELED S.I. ENGINE

摘要

Bioethanol is a viable alternative fuel for spark ignition engines due to its good burning properties and due to its unlimited manufacturing resources. In this paper bioethanol mixed with gasoline in various proportions was used as fuel in order to improve energetically performance and reduce of the pollutant emissions. The experimental results showed an increase in effective engine power with 16% using E85 fuel, a reduction in specific fuel consumption in CO and HC with 12%, 48% and 34%, but an increase in NO_x emissions. By using leaner mixtures one can achieve a considerable reduction of NO_x emission level.