Size-segregated particulate matter emission characteristics of a heavy-duty diesel engine with oxygenated fuels

The effect of nonthermal plasma on the oxidation and removal of particulate matter under different diesel engine loads

“…The reason is the high VF in the PM at a low load. The VF covers the surface of the EC [ 30 ] ; thus, the NTP reacts with a large amount of the VF first, weakening the oxidation effect of the NTP on the EC. As the engine load increased to 70%, the temperature in the cylinder increased, and fuel oxidation was enhanced.…”

Effects of PODE/diesel blends on particulate matter emission and particle oxidation characteristics of a common-rail diesel engine

“…Particle emissions represent a critical issue in particular for diesel engines blended with PODE, because of their effect on human health. In order to make it clear of the source of PM emitted from a diesel engine blended with PODE, lots of studies have explored the influences of PODE on particles [19,20]. Barro et al [21] investigated the performance of a research single cylinder heavy-duty 4-stroke diesel engine fueled with PODE/diesel blends (20% and 80% PODE in volume) and found that the particle emissions using PODE showed high number concentration (compared with pure diesel) in a size range mainly below 20 nm.…”

Effect of 5-membered bicyclic hydrocarbon additives on nanostructural disorder and oxidative reactivity of diffusion flame-generated diesel soot

“…Although, they found that the partial replacement of fuel by ethanol reduced soot precursor concentrations, it also increased the harmful oxygenated emissions such as formaldehyde and acetaldehyde, which are among the well-known volatile organic pollutants in the atmosphere [7]- [9]. Most of the fuel alternatives such as oxygenated fuels or bio-fuels usually exhibit low cetane number (which is an indicator of the quality of diesel and its ignition properties) [10]. Moreover, oxygenated fuels tend to have less volatility and high lubricity than diesel [11], although light molecules such alcohols or ethers, when added to diesel, lead to increased volatility and reduced lubricity, and often have miscibility problems [12].…”