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Characteristics of Nano-particles Exhausted from Heavy-duty Diesel Vehicles with Low Emission Technology  

Lim Cheol-Soo (국립환경연구원 자동차공해연구소)
Yoo Jung-Ho (국립환경연구원 자동차공해연구소)
Eom Myoung-Do (국립환경연구원 자동차공해연구소)
Hwang Jin-Woo (국립환경연구원 자동차공해연구소)
Kim Ye-Eun (국립환경연구원 자동차공해연구소)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.20, no.2, 2004 , pp. 225-236 More about this Journal
Abstract
Diesel engines which emit a lot of PM and NOx have been known as a main air polluter. Especially, diesel particulate matters (OPM) including black smoke are hazardous air pollutants to human health and environment. The nations retaining advanced engine technologies have reinforced emission regulations. To meet these regulations diesel engine manufacturers have developed low-emission diesel engines, aftertreatment equipments, alternative fuel technologies and so on. In this study, particle number concentrations characteristics according to particle size and engine driving conditions were analyzed when these low-emission technologies were applied. There was a tendency of increasing particle number concentrations from heavy-duty diesel engines with increasing engine rpm and load rate. In the cases of COPF (Catalytic Diesel Particulate Filter), CNG (Compressed Natural Gas) engine and ULSD (Ultra Low Sulfur Diesel) more than 99% of particle number concentration were removed.
Keywords
Aftertreatment equipment; Particle number concentration; COPF; CNG; ULSD;
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