INFLUENCE OF ENGINE OPERATING PARAMETERS ON ALDEHYDE EMISSIONS FROM AN ETHANOL-FUELED VEHICLE

摘要: Abstract This work presents results and analysis of experiments on aldehyde the regulated pollutants CO, HC, NOA emissions, with varying engine-running parameters. An ethanol-fueled vehicle was tested in a chassis dynamometer, following standard urban cycle test procedure. The simulated medium-distance trip an area, approximately 5.8 km, warmed-up engine. running parameters were mixture equivalence ratio, additional air flow used decelerations (dash pot), fuel interruption function (cutoff), gear-change speed. pointed to reduction emissions for lower speeds richer mixtures.