Alternative Diesel Fuels Effects on Combustion and Emissions of an Euro5 Automotive Diesel Engine

Chemico-physical features of soot emitted from a dual-fuel ethanol–diesel system

“…The selected test points are representative of the medium speed (2000 rpm) and medium/high load (7-12 bar IMEP) operating conditions and are significant in the typical operation area of the automotive diesel engines performing the new european driving cycle (NEDC) [5,23,24]. Moreover, these points are also critical in terms of NOx and soot emissions.…”

Effects of different biofuels blends on performance and emissions of an automotive diesel engine

“…120 Although the effects of HVO on engine emissions have already 121 been investigated by several researchers (see [18] for a recent 122 review), as well as a plethora of studies concerning the effects of 123 FAME can be found in literature (see for instance [19][20][21][22] tion optimized for alternative fuels is rarely used [27][28][29] and the 130 possible decrease in engine torque output is often recovered by 131 increasing the torque demand through an increase of the accelera-132 tor pedal position, thus simulating a switch of the supplied fuel. 133 An extension of the investigations to modern engines, which 134 may include advanced combustion technologies and closed-loop 135 combustion controls [28,29] seems therefore to be necessary in 136 order to fully understand the effects of both FAME and HVO usage. 137 The aim of the present work is therefore the analysis of the The main properties of the test fuels are listed in Table 1 while 160 distillation curves and viscosity versus temperature trends are 161 shown in Fig.…”

Diesel Internal Combustion Engine Emissions Measurements for Methanol-Based and Ethanol-Based Biodiesel Blends

“…It was found that, with biofuel blends, the specific fuel consumption increased, the CO, CO 2 , and HC emissions decreased, the smoke opacity decreased, while the NO emission slightly increased [8]. Guido et al [9] employed a smoke meter (AVL415S) and studied biodiesel blends B20, B50, and B100 effects on the emissions of a General Motors 2-litre fourcylinder diesel engine. It was also found that the emitted smoke is reduced with increasing percentage of biodiesel blends [9].…”

“…In published experiments the effects of different types of biodiesel blends on combustion and the exhaust emissions and performance of diesel ICE (see [8][9][10][11]) were studied. Anand et al [8] used a nondispersive infrared analyser (NDIR) (AVL DiGas 444), gas analyser, and smoke meter (AVL437) and measured the emissions of blends of waste cooking oil methyl ester from B10 (10% by volume biodiesel in diesel) to B80 in a single-cylinder diesel engine.…”

“…Guido et al [9] employed a smoke meter (AVL415S) and studied biodiesel blends B20, B50, and B100 effects on the emissions of a General Motors 2-litre fourcylinder diesel engine. It was also found that the emitted smoke is reduced with increasing percentage of biodiesel blends [9]. Nabi and Hustad [10] employed a gravimetric method and examined the 20% in volume jatropha biodiesel blend in diesel in a six-cylinder turbocharged direct injection engine, and found that smoke decreased with the use of blended fuel.…”