Chemical Kinetic Investigations of Ignition and Combustion Phenomena in a DI Diesel Engine Fueled with Methanol. 3rd Report. Analysis of HCHO Formation Process in the Cylinder.

Abstract

An experimental and numerical study of HCHO (Formaldehyde) and other pollutant species formation in the cylinder of a direct-injection diesel engine fueled with methanol has been conducted. Engine tests were carried out under variety of intake conditions including throttling, heating and EGR for the purpose of changing gas composition, temperature in the post-combustion zone. Moreover, the relative importance and influence of individual reactions on HCHO formation and mechanism were assessed with aid of sensitivity analysis.