Effects of Oxygenated Additives with Diesel on the Performance of D I Diesel Engine

Abstract

The primary objective of this work is to reduce the particulate matter (PM) or smoke emission and oxides of nitrogen (NOx emissions) the two important harmful emissions and to increase the performance of diesel engine by using oxygenated additives with diesel as blend fuel. Formulation of available diesel fuel with additives is an advantage than considering of engine modification for improvement of higher output. From the available additives, three oxygenates are selected for experimentation by considering many aspects like cost, content of oxygen, flashpoint, solubility, seal etc. The selected oxygenates are Ethyl Aceto Acetate (EAA), Diethyl Carbonate (DEC), Diethylene Glycol (DEG). These oxygenates are blended with diesel fuel in proportions of 2.5%, 5% and 7.5% by volume and experiments were conducted on a single cylinder naturally aspirated direct injection diesel engine. From the results the conclusion are higher brake power and lower BSFC obtained for DEC blends at 7.5% of additive as compared to EAA, DEG and diesel at full load. In case of DEC blends the smoke emission is lower, whereas NOx emissions are very low in case of EAA additive blend fuels. The DEC can be considered is the best oxygenating additive to be blend with diesel in a proportion of 7.5% by volume.

Biofuels from Diethyl Carbonate and Vegetable Oils for Use in Triple Blends with Diesel Fuel: Effect on Performance and Smoke Emissions of a Diesel Engine

“…In this line, several studies have reported diethyl carbonate as an effective oxygenated additive in proportions of up to 20% for fossil diesel, resulting in lower soot and NOx emissions emitted by the engine, as well as an improved engine performance [25][26][27][28]. The effect DEC on the performance and emission of a diesel engine has been also analyzed on blends with waste plastic oil and diesel.…”

“…Properties of diesel, sunflower oil, castor oil, and diethyl carbonate. Density and kinematic viscosity are experimentally obtained, whereas the other data are taken from the literature[27,31,32].…”