IMPACTS OF GASOHOL E5 AND E10 ON PERFORMANCE AND EXHAUST EMISSIONS OF IN-USED MOTORCYCLE AND CAR: A CASE STUDY IN VIETNAM
Abstract
This paper presents results of utilization of bioethanol E5 and E10 fuels on in-used motorcycle and car regarding performance and exhaust emissions of the engines. It is a collaborative research between Green Field Joint Stock, a bioethanol production company and Laboratory of Internal Combustion Engine, Hanoi University of Technology.
Findings of the research on the testing motorcycle and car showed that, using E5 and E10 fuels the air-fuel mixing process and the combustion inside the combustion chamber were improved due to better evaporation of ethanol. The stoichiometric air fuel ratio was decreased due to the available oxygen in the fuel. This helped improve engine power, fuel consumption and exhaust emission components such as CO, HC, while NOx emission increased significantly because of the better combustion and high combustion temperature. The findings contributed remarkably to the challenge of wide application of bioethanol on vehicles in Vietnam.