Effects of Injection Pressure, Timing and EGR on Combustion and Emissions Characteristics of Diesel PCCI Engine Okayama Univ

Format:

Conference/Event

Author/Creator:

Kiplimo, Kiplimo, author.

Contributor:

Kawahara, Nobuyuki

Tomita, Eiji

Yokobe, Sumito

Zhou, Shiyu

Conference Name:

SAE International Powertrains, Fuels and Lubricants Meeting (2011-08-30 : Kyoto, Japan)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

Effects of injection parameters on combustion and emission characteristics of diesel PCCI engine operating on optical and test engine was investigated. PCCI combustion was achieved through slightly narrow included angle injector, low compression ratio coupled with exhaust gas recirculation. Analysis based on diesel spray evolution, combustion process visualization and analysis was carried out. Spray penetration was evaluated and related to the exhaust emissions. Advancing the injection timing and EGR extended the ignition delay, decreased NOx emissions and increased HC, smoke and CO emissions. Higher injection pressure led to low emissions of NOx, smoke, HC and comparable CO. Optimum spray targeting position for minimum emission was identified. Impingement on the piston surface led to deterioration of emissions and increased fuel consumption while spray targeting the upper edge of Derby hat wall showed improvement in emission and engine performance

Notes:

Vendor supplied data

Publisher Number:

2011-01-1769

Access Restriction:

Restricted for use by site license