International Scientific Journal

Thermal Science - Online First

online first only

Effects of pilot injection on combustion and emissions characteristics using 2-methylfuran/diesel blends in a diesel engine

A direct injection compression ignition (DICI) engine fueled by diesel blended with10%or30%mass proportion of2-methyl furan(MF)was experimentally studied. The in-cylinder combustion pressure, regulated emissions and particulate matter (PM) emissions at different pilot injection timing sand masses were investigated under the exhaust gas recirculation (EGR) mode. It was found the blending with MF increased the peak in-cylinder pressure and retarded the combustion phase at different pilot injection timings. The addition of 30% MF increased the peak in-cylinder pressure and heat release rate (HRR)gradually along with the advancement of pilot injection timing. NOx, HC and CO emissions increased with the advancement of pilot injection timing when the pilot injection proportion was fixed at 20%, and the blending with MF reduced HC and CO emissions but increased NOx emissionsconsiderably.30% MF addition could significantly reduce nucleation mode and accumulation mode particles at different pilot injection timings and masses compared with pure diesel. In addition, the particulate mass concentration (PMC)of 30% MF addition remained at very low level sunder all experimental conditions.
PAPER REVISED: 2018-06-20
PAPER ACCEPTED: 2018-07-02
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