An experimental and numerical study has been conducted on the emission and reduction of HCHO (formaldehyde) and other pollutants formed in the cylinder of a direct-injection diesel engine fueled by methanol. Engine tests were performed under a variety of intake conditions including throttling, heating, and EGR (exhaust gas recirculation) for the purpose of improving these emissions by changing gas compositions and combustion temperatures in the cylinder. Moreover, a detailed kinetics model was developed and applied to methanol combustion to investigate HCHO formation and the reduction mechanism influenced by associated elementary reactions and in-cylinder mixing.
Simulating Exhaust Emissions Characteristics and Their Improvements in a Glow-Assisted DI Methanol Engine Using Combustion Models Combined with Detailed Kinetics
Sae Technical Papers
International Spring Fuels & Lubricants Meeting & Exposition ; 1997
1997-05-01
Conference paper
English
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