Measurments of 2-D Image Soot Distribution for Different Piston-Shapes of a DI Diesel Engine Using Elastic Scattering, Laser-Induced Incandescence and Flame Luminosity

레이저 탄성산란법, 여기적열법, 자발광을 이용한 직분식 디젤엔진의 피스톤 형상에 따른 2차원 soot 분포 측정

Soot formation and oxidation is closely related to the combustion phenomena inside a diesel engine. Laser-based diagnostics provide a means for improving our understanding of diesel combustion, because they have highly temporal and spatial ability. To understand the soot behavior we did preliminary study by taking flame luminosity photographs and 2-D images of soot distribution using Laser Elastic Scattering(LIS) and Laser-Induced Incandescence(LII). From the data we found that soot concentration was high in the bowl and disappeared from the central region in the late combustion stage and that soot exists in the flame using luminosity, LIS and LII.