Effects of Different Test Conditions on Pollutant Emissions from Methanol-Fueled Vehicles

Two kinds of emission equipment, FTIR and MEXA, were jointly used to measure unconventional and conventional pollutants of light-duty methanol vehicles, respectively. In the test, several different test methods were operated in order to compare the exhaust emissions of the test vehicles. Specifically, the effects of different test conditions, temperatures, and concentrations of methanol gasoline on the exhaust emissions such as ammonia gas (NH3), methanol (CH3OH), acetaldehyde (CH3CHO), carbon monoxide (CO), and particle number (PN) were investigated. By analyzing the test results, the patterns of emission and fuel consumption of light-duty methanol vehicles were summarized. This study offers a deeper understanding of the patterns by which conventional and unconventional pollutants were discharged from mechanol automobile.