Assessment of the use of oxygenated fuels on emissions and performance of a diesel engine

Impact of the Biofuels Burning on Particle Emissions from the Vehicular Exhaust

“…Guarieiro et al [49] investigated the influence of the use of ethanol as an additive to biodiesel/ diesel blend in the size and number distribution of particles and the results obtained are shown in Figure 14. The fuels evaluated were B5 (diesel with 5% of biodiesel); B5E6 (ternary composition containing 89% diesel, 5% of biodiesel and 6% of ethanol); and B100 (100% of biodiesel).…”

“…It was observed by the authors that there was an increase in the number of smaller particulate emissions when biodiesel is used instead of blended diesel with alcohol fuel. The engine used in Guarieiro's research [49] has a mechanical injection, an anticipated injection can happen due to high modulus of volumetric compressibility of the B100, and this makes it longer to mix with air. Thus, there is an increase in premixed combustion fraction due to the ignition delay that can generate a lesser incomplete burning, reducing the size of the particles and consequently, increasing their concentration.…”

“…Mass particle size distribution: (a) effect of chain length, 0% EGR; (b) effect of chain length, 30% EGR; (c) effect of unsaturation, 0% EGR, and (d) effect of unsaturation, 30% EGR [48].Biofuels -Status and Perspective Distribution of number and size particles for fuels: B5, B5E6, and B100[49].…”

Comparison Tests of Fossil Diesel Fuel and TBK-Biofuel

“…These disadvantages can be compensated by decreasing in exhaust gas emission in point of certain components because of their adherent oxygen content (Guarieiro et al, 2014;Mrad et al, 2012;Lapuerta et al, 2010;.…”

Comparison Tests of Diesel, Biodiesel and TBK-Biodiesel

“…Disadvantages of bio fuels in point of view of physical and chemical properties [15,16,25] can be compensated by decreasing in exhaust gas emission in point of certain components like CO (Carbon monoxide), HC (HydrogenCarbon) because of their adherent oxygen content [18,20,21,24].…”