EXPERIMENTAL STUDIES ON FUMIGATION OF ETHANOL IN A SMALL CAPACITY DIESEL ENGINE

Abstract

Diesel vehicles remain a major cause of street level air pollution in many cities. For new diesel vehicles, increasingly stringent emissions standards have been imposed to reduce the pollutants they emitted. For in-use diesel vehicles, improvements are required to reduce air pollution as well. In some cities, after-treatment devices and clean fuels have been applied. After-treatment devices, including the oxidation catalytic converter and the particulate filter, can lead to reduction of CO, HC and/or particulate emissions. However, after-treatment devices currently in-use are unable to reduce emission of carbon dioxide (CO2), and have very limited application for reducing nitrogen oxides (NOx). Ethanol has been widely investigated for applying in combination with diesel fuel to reduce pollutants, including smoke and NOx . The present work aims at developing a fumigation system for introduction of ethanol in a small capacity diesel engine and determines its effects on emission. Ethanol ...