A comparison study on the combustion and particulate emissions of 2,5-dimethylfuran/diesel and ethanol/diesel in a diesel engine

Abstract

Compared with pure Diesel fuel, Diesel engine fueled with 2,5-dimethylfuran/ diesel prolonged the ignition delay, shortened the combustion duration, increased the engine efficiency and decreased the number of accumulation mode particles (50 nm < Dp < 1000 nm), but increased the nucleation mode (Dp < 50 nm) number. The mean diameter of particles was declined with 2,5-dimethylfuran addition due to the increase of small particles number. Ethanol/diesel was more effective in extending the ignition delay, shortening the combustion duration, enhancing the engine efficiency and reducing the number of large size particles, but produced more small size particles compared with 2,5-dimethylfuran/diesel.