Open AccessStudy of synthesis and combustion of composite fuels based on n-decane and Al nanoparticles
Author(s) -
Е. В. Бармина,
M. I. Zhilnikova,
V. D. Kobtsev,
S. A. Kostritsa,
S.N. Orlov,
S. Yu. Volkov,
G. A. Shafeev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2127/1/012011
Subject(s) - decane , combustion , composite number , materials science , nozzle , diffusion , transmission electron microscopy , analytical chemistry (journal) , combustor , high resolution transmission electron microscopy , diffusion flame , chemical engineering , nanoparticle , composite material , chemistry , nanotechnology , thermodynamics , organic chemistry , physics , engineering
The article is devoted to the analysis of a diffusion combustion of a composite fuel (formed by an addition of non-oxidized aluminum (Al) nanoparticles (NP’s) to n-decane) with oxygen. The process of obtaining Al NP’s consisted of a laser fragmentation of initially large commercially produced NP’s (so called “Alex” with mean diameter is about 450 nm) in the solution of isopropanol. A final size distribution of NP’s was determined by a CPS DC2400 measuring disk centrifuge. The morphology of NP’s was characterized with the Transmission Electron Microscope (TEM) JEM-100C. The measured average diameter of NP’s was about 40 nm. In the final step of a preparation of a composite fuel an isopropanol was exchanged on n-decane. To characterize the composite fuel, diffusion combustion was used in combination with the laser diagnostic technique CARS. Temperature distributions along the x direction were measured at two values of distances from the nozzle. It has been shown that, for the fuel consistent of 0.1% mass concentration of Al NP’s in n-decane, the temperature at the distance equaled 14 mm downstream from the nozzle exit of a burner in the vicinity of the flame front was significantly higher (by 200–300 K) than that upon burning of pure n-decane.