Experimental study on performance and emissions of a high speed diesel engine fuelled with n-butanol diesel blends under premixed low temperature combustion

Response surface methodology based optimization of diesel–n-butanol –cotton oil ternary blend ratios to improve engine performance and exhaust emission characteristics

“…3a corresponds to lower brake torque values related to low heating content and high viscosity of cotton oil. These results are similar to those of Atmanlı et al, Rakopoulos et al and Valentino et al [27,30,33].…”

“…The effect of diesel fuel-n-butanol binary blends on engine performance and exhaust emissions in diesel engines have been examined by many researchers [12,14,15,21,[29][30][31][32][33]. However, the open literature reports only a few papers concerning the effect of engine performance and exhaust emissions of diesel engines fueled with diesel fuel-vegetable oil-n-butanol ternary blends [11,19,22,23,27,28,34].…”

Experimental investigation of particle emissions under different EGR ratios on a diesel engine fueled by blends of diesel/gasoline/n-butanol

“…In addition, as an oxygenated fuel, the addition of nbutanol to diesel can bring more oxygen into the fuel-enriched area, where oxygen atoms can react with soot precursors to reduce soot emission [20]. Valentino et al [21] studied the influence of the inlet oxygen concentration on the combustion and emission performances of n-butanol/diesel fuel blends in LTC, conducting tests at constant speed and constant load. Their results showed that an increase in the inlet oxygen concentration leads to a decrease in soot emissions, and revealed that the joint effect of the higher resistance to auto ignition and the higher volatility of n-butanol blends improves emissions compared to neat diesel with a small drawback on fuel consumption.…”

Homogeneous Charge Compression Ignition (HCCI) Combustion Engine- A Review

“…The MK combustion system uses a high level of EGR to reduce the NOx emissions up to 98% less than that of conventional diesel engine. The investigation results of the effect of EGR on ignition delay and the exhaust emissions reported by Gerardo et al [81] are that (i) it reduces oxygen concentration at the intake, (ii) reduces the adiabatic flame temperature, (iii) increases the ignition delay with as lower pressure rise rate which also improves the combustion noise, (iv) reduces the NOx emissions, and (v) decreases volumetric efficiency and increases the smoke emissions, if its rate is high. Ganesh et al [5] reported that the EGR has two major effects on HC emission (a) the induction of some un-burnt HC with exhaust gases into the next cycle leads to a reduction in HC emissions, and (b) the decrease of combustion temperature in the cylinder results in an increase in HC emissions.…”