Abstract

In this paper, the particle size distribution of PM in the exhaust gas from low speed two-stroke marine diesel engine was investigated to know the emission characteristics of the PM. The measurement of particle size distribution was executed by Scanning Mobility Particle Sizer (SMPS) and Low Pressure Impactor (LPI). The effects of the cylinder oil feed rate and the engine load on particle size distribution of PM were examined. Particles of less than 100 nm in diameter decrease with a decrease in cylinder oil feed rate. As the engine load becomes higher, the peak of size distribution curve slightly shifts toward smaller particle size for under 100 nm particle.

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