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The Effect of Oxygenated Fuel on Premixed Lean Diesel Combustion
Published May 20, 1998 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Low NOx emission combustion is obtained by PREDIC (PREmixed lean DIesel Combustion). However, some problems still remain such as higher fuel consumption, a lack of ignition timing control, and a large increase in THC and CO, compared to conventional diesel combustion. The effect of the addition of an oxygenated fuel to the diesel fuel was investigated to improve fuel consumption and emissions. Using ethanol or MTBE which has lower ignitability, the ignition timing was delayed and the fuel consumption was improved. The numerical computation suggested that the fuel which has a low ignitability and high evaporation rate was effective for the improvement of the fuel consumption and emissions.