Soot particle size and pollutant emissions characterisation from an LD diesel engine equipped with high-pressure and low-pressure EGR system and operating with conventional and PCCI combustion. (1st January 2012)

• Record Type: Journal Article
• Authors: Beatrice, Carlo; Guido, Chiara; del Giacomo, Nicola; Di Iorio, Silvana
• Is Part Of: International journal of vehicle design. Volume 59:Number 1(2012)
• Page Start: 82
• Page End: 103
• Publication Date: 2012-01-01
• Subjects: diesel exhaust particle size distribution -- pollutant emissions -- LPEGR -- low-pressure EGR -- diesel combustion -- premixed compression ignition combustion; Motor vehicles -- Design and construction -- Periodicals; 629.231
• Languages: English
• ISSNs: 0143-3369

Abstract

The paper analyses the soot Particle Size Distribution Function (PSDF) measurements carried out at the exhaust of a modern automotive diesel engine equipped with a low-pressure Exhaust Gas Recirculation (EGR) system and operating with conventional and Premixed Charge Compression Ignition (PCCI). The results have indicated significant benefits in terms of exhaust raw particle number emission with the adoption of low-pressure EGR system and PCCI calibration and, thanks to the peculiarity of the operating mode of Low Pressure EGR (LPEGR) system, have highlighted the complex link between in-cylinder charge composition and the PSDF characteristics.