논문제목 : Effects of Engine Loads on Exhaust Emissions and Particulate Matter with Morphological Characteristics in a Common Rail 4 Cylinder Diesel Engine

저    자 : Hyun Gu Roh, Seuk Cheun Choi, Chang Sik Lee

논문정보 : 한국연소학회 학회지 15권 3호 pp57-66

게재연월 : 2010년 9월

요약 : The purpose of this paper is to investigate the effects of fuel injection strategy and engine load on the structure and emissions characteristics of a DI diesel engine with 1.6L of piston displacement. In order to analyze
the particulate matter (PM) and exhaust emissions characteristics in a direct injection diesel engine, the quantity
of PM and exhaust emissions (including HC, CO and NOX) were investigated under various injection strategies
and engine loads. Two different injection strategies (one pilot/main injection and two pilots/main injection) was investigated under the various engine loads. A thermophoretic sampling method with a scanning electron
microscope (SEM) were used to obtain the PM morphology (including primary particles, the size of the agglomerates, the number of agglomerates, the fractal dimension). The quantity of soot gradually increased with
increasing engine load at both injection strategies. The primary particles in the PM agglomerates indicate that the average of the primary particle and radius of gyration increased as the engine load increase