Analysis of the Exhaust Emission from Vehicle Fueled with Variance Research Octane Number Fuel

Abstract

Transportation sector is one of the main and global sources of pollutants in the atmospheric environment. Vehicle emission control system has found to degrade with the resulting in the increased of emission rates as the vehicles ages. In this research, we present the study on the emission standard for passenger vehicle fuelled with gasoline in global market and analyzing the empirical data for the emission based on Malaysia standard. This research will be conducted with a laboratory setup to analyze the emission production from the passenger vehicle using Mustang Chassis Dynamometer and Bosch Emission Analyzer. The test is conducted using 1.3L engine of Perodua Myvi with RON 95, RON 97 and RON 100 fuel. The emission is acquired during the NEDC drive cycle with different engine speed throughout the drive cycle.  Emission of CO, CO₂ and HC produced during the experiment was studied. Generally the result indicated that a higher octane fuel produces lower emission of CO and HC while lower octane fuel produces lower emission of CO₂. The overall result suggested that higher RON number fuel resulting in better emission compared to the lower RON. RON 100 produces the least total amount of CO emission which is 0.06 % followed by RON 95 with 0.142 % and the highest amount of CO is produced by RON 97 with 0.454 % throughout the experiment. RON 100 has the best combustion efficiency which is lead to higher formation of CO₂ for the environment and reduces the production of harmful gas of CO and HC. The result of the experiment that was conducted will be a helpful source of references for those who wish to continue the study on the related subject.