Abhishek Paul

Effect of diethyl ether and ethanol on performance, combustion, and emission of single-cylinder compression ignition engine

The effect of diesel, ethanol, and diethyl ether (DEE) blends on performance, combustion, and emission of a 3.6 kW single-cylinder compression ignition engine is investigated in this paper. The experiments were conducted using different percentages of ethanol and DEE in diesel. The fuel samples selected for experimentation included neat diesel fuel, 5% DEE (D95DEE5), 10% DEE (D90DEE10), 5% DEE with 5% ethanol (D90DEE5E5), 5% DEE with 10% ethanol (D85DEE5E10), 10% DEE with 5% ethanol (D85DEE10E5), and 10% DEE with 10% ethanol (D80DEE10E10). It was found that 5% DEE can improve the brake thermal efficiency (ηbth), but the same decreased with 10% DEE in the blend. However, ethanol addition to both the blends produced an appreciable increase in ηbth of the engine. The diesel–DEE–ethanol blends were also more efficient in reducing emissions of carbon monoxide (CO), oxides of nitrogen (NOx), hydrocarbon (HC), and particulate matter (PM). Among all the blends tested in this study, it was found that the D80DEE10E10 blend can produce optimum performance-emission characteristics with improved thermal efficiency and reduced emission of NOx, CO, HC, and PM.

An experimental study of performance and emission parameters of a compression ignition engine fueled by different blends of Diesel-Ethanol-biodiesel

The effects of different ethanol-diesel blended fuels on the performance and emissions of diesel engines have been evaluated experimentally and compared in this paper. After series of miscibility tests, it was found that ethanol is not miscible in diesel beyond 10% concentration. In order to increase its miscibility, Pongamia piñata methyl ester (PPME), popularly known as biodiesel was added as an amphiphilic agent. Different concentrations of ethanol and biodiesel produced different blends from which 4 blends were chosen for engine testing. The results indicated that biodiesel inclusion in the blends increased the brake thermal efficiency and reduced the fuel consumption of the engine. The study of emission parameters also showed that diesel ethanol blends reduced NOx and CO2 emission but increased hydrocarbon emission with elevated exhaust smoke opacity. It was also noticed that biodiesel inclusion in the blends reduced hydrocarbon emission, reduced exhaust smoke opacity with the penalties of simultaneous increase in NOx and CO2 emission.