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Abstract
Particulate emissions from marine diesel engines negatively affect the environment and human health, especially in the port area. To more deeply understand the particle emission from marine diesel engines, particulate samples in the exhaust gases of marine diesel engines were collected at different fuels having different sulfur content and load modes by quartz fiber filters and a partial dilution sampling system. And then these samples were analyzed to evaluate the effects of fuel and load conditions on the engine's particulate emissions. The results show that the particulate emission depends on the sulfur content in the fuel, and the engine load mode. When the sulfur content in the fuel is reduced from 1.01% to 0.5% the particulate emissions are reduced from 0.94 to 0.61g/kW.h. When the engine is operated at a low load (15%), the particulate emissions are higher nearly 2 times in high load mode. At 50-60% load, particulate emissions are the lowest about 0.51gkW/h for 0.5% sulfur fuel and 0.77 g/kW.h for 1.01% sulfur fuel.