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.

Comprehensive Review of the Impact of 2,5-Dimethylfuran and 2-Methylfuran on Soot Emissions: Experiments in Diesel Engines and at Laboratory-Scale

“…HRTEM analyses showed that, with the increase in the 2,5-DMF amount in diesel fuel, the size of the spherical primary particles in soot was reduced (Figure ), which indicated that there was a reduction in soot growth rate using the diesel/2,5-DMF blends. This result is in line with those obtained in diesel engines works discussed above. ,, The electron energy loss spectra analysis showed that, as the 2,5-DMF amount in diesel fuel increased, the ratio of π*/σ* bonding reduced (Figure ). This means that the content of aliphatic chains in soot particles, which are more reactive than aromatic structures, increased.…”

“…Wei et al 93 performed a study in a four-cylinder diesel engine fueled with pure diesel fuel, and with blends of diesel with 10% and 30% (mass fraction) of 2,5-DMF and with 30% (mass fraction) of ethanol. The engine speed was 1800 rpm, and the load ranged from 0.13 to 1.13 MPa BMEP.…”

“…The dominance of the nucleation mode particle (small particles) in PM emissions was also observed in works using diesel/2,5-DMF blends discussed above. 90,91,93 The explanation given by the authors for reduction of soot emissions was that the combustion efficiency and rise in temperature were enhanced due to the oxygen content in 2-MF, which promotes oxidation of larger particles into smaller particles. On the other hand, the formation of soot precursors could be suppressed due to the presence of oxygen in the 2-MF molecule.…”

“…Studies on the use of the diesel/furan derivative blends in engines, − as well as in premixed ethylene–air flames at atmospheric pressure, have shown that soot emissions are significantly reduced compared to pure fuel. Moreover, if a correct EGR rate is used, the soot and NO x emissions can be addressed simultaneously .…”

Investigation of the performance, combustion parameters and emissions analysis on DI engine using two staged distilled waste plastic oil-diesel blends

“…3, pp. -1480 drowsiness, eye irritation, and coughing [5][6][7][8]. Moreover, it has been assured that waste plastic oil (WPO) is one of the potentially suitable sources for Diesel engines [9].…”