Abstract
The effects of fuel components on particulate matter emissions were studied on a high pressure common rail diesel engine fuelled with different diesel fuels. Six kind of diesel fuels with various volatility and ignitability were selected in this test. Particle number, composition and morphology were studied with various physicochemical property diesel fuels. The results show that lower ignitability fuel and stronger volatility fuel could reduce the accumulation mode particle number, while the nucleation mode particle number would increase. Meanwhile, the proportion of DS might reduce with the SOF increase. With the decrease of the fuel cetane number, the number of large cluster particles in the exhaust decreased obviously.
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