Experimental study of combustion of composite fuel comprising n-decane and aluminum nanoparticles

Oxidation of Levitated exo-Tetrahydrodicyclopentadiene Droplets Doped with Aluminum Nanoparticles

“…This necessitates development of the next generation of high energy-density fuel and high energy-density fuel additives ultimately to enhance the performance and range of air-breathing propulsion systems. A key approach to increase the energy density of the liquid fuel is to include solid particle additives such as high energy-density nanoparticles (NPs). , Aluminum (Al) holds an energy density of 84 kJ cm –3 ; aluminum NPs have consequently generated intense interest as a high energy fuel additive, since the addition of aluminum NPs has the unique potential of improving the performance of hydrocarbon fuels including JP-10. − The addition of Al NPs has been shown to improve the performance of JP-10. E et al demonstrated that adding Al NPs increased the volumetric energy of JP-10 by 10%, shortened the ignition delay times, and increased burn times in the combustion process. , Luo et al exploited a small-scale reactor to study the combustion of JP-10 containing 30–50 nm diameter Al NPs and found that the aluminum-doped samples resulted in nearly 10% higher combustion efficiency than pure JP-10 samples.…”

“…A third potential mechanism would involve the initial oxidation of aluminum NPs. Starik et al and Smirnov et al proposed a chain mechanism for the combustion of aluminum doped n -decane fuels which can be applied to Al/JP-10. The oxidation is initiated by the formation of aluminum atoms in the gas phase, which react with molecular oxygen to produce highly reactive atomic oxygen and aluminum oxide (AlO)as observed in the present studyin an exoergic reaction (Δ H = −15 kJ mol –1 ) .…”

Methane-air flame thermometry using planar lase-induced fluorescence (PLIF)

“…CARS-spectra of H2 molecules, which appear in the fuel-rich zones of the flame, were recorded using the CARS system employing broadband Stokes radiation and non-collinear configuration of crossing the beams. The detailed description of the system is given in [6]. The probe volume was  0.05 mm in diameter and  2 mm in length.…”

Ignition and Combustion of Hydrocarbon Fuels Enhanced by Aluminum Nanoparticle Additives: Insights from Reactive Molecular Dynamics Simulations

“…23 Most of the previous studies have addressed the ignition and combustion of liquid hydrocarbons with the addition of AlNPs containing primarily the oxide shells. More recently, Smirnov et al 24 conducted an excellent experiment for the combustion of composite fuels composed of n-decane with 2.5% nonoxidized AlNPs (per mass). The results revealed that, in the near-axis flame regions, the temperature of the composite fuels at a long distance (z = 14 mm) from the burner is 450 K higher than that of neat fuels.…”