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The nano-hybrid pour point depressants (PPDs) was prepared by organically modified nano-clay covering in polymeric PPDs, namely, polymethyl acrylate (PMA), ethylene vinyl acetate copolymer and poly-α-olefin. The effects of nano-hybrid PPDs on the cold flow properties of diesel fuel were evaluated. The crystal morphology and crystallization behavior of the diesel fuels in low-temperature were also...
Kerosene combustion in diesel engines is getting more prevalent due to the push for kerosene use in diesel engines by the North Atlantic Treaty Organization military. The study of kerosene combustion in diesel engines has primarily been carried out through engine experiments. Negligible study has been carried out through engine simulations possibly due to the lack of a compact and reliable kerosene...
The high altitudes of the plateau areas lead to a decreasing flash point temperature of liquid fuels due to the reduced ambient pressure. It indicates that liquid fuels suffer greater fire and explosion hazards at high altitudes. To reveal the dependence of flash point on reduced pressure at high altitudes, a series of field flash point determinations are performed at six different altitudes on the...
To obtain ultra-deep hydrodesulfurization (HDS) on the fluid catalytic cracking (FCC) gasoline and diesel, a novel catalyst has been prepared by an arc discharge method. This nickel yttrium (Ni–Y) bi-metallic catalyst is attached on single-walled carbon nanotubes (SWCNTs) and it shows higher HDS activities than that of mono-metal catalyst. Our results demonstrate that the content of SWCNTs has important...
The possibility to reduce dependence on fossil fuel resources has led to an increasing interest in the use of bio-fuels. This study builds on earlier work on (aromatic) cyclic oxygenates [1,2], but a far wider window of engine operation has been investigated in this paper. Two parametric variations of engine operation were performed and discussed: (1) non-EGR operation by means of varying the load...
Emissions and fuel economy are evaluated for two types of biofuels, namely 2-phenyl ethanol and cyclohexaneethanol. Both are derived from lignin, a form of lignocellulosic biomass. The former and latter oxygenates have an aromatic and aliphatic (i.e. saturated) ring structure, respectively. Two parametric engine sweeps were performed. First, non-EGR operation by means of varying the load via injection...
In CFD simulation of diesel combustion, the predictive capabilities of the spray model play the most important role. Consequently, under the strict guidelines of the V&V, a method to adjust parameters of diesel spray model WAVE to accompany with the in-cylinder physical progress has been investigated in this paper. Moreover, the simulation of the spray has been validated by high-speed photography...
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