Numerical simulation of TiO 2 nanoparticle synthesis by flame spray pyrolysis

Direct Numerical Simulation of Nonpremixed Flame Extinction by Water Spray

The interaction of turbulent nonpremixed flames with fine water spray is studied using direct numerical simulations (DNS) with detailed chemistry. The study is of practical importance in fire safety devices that operate in the mist regime, as well as an inexpensive temperature control mechanism for gas turbines. The implemented computational methods for the Lagrangian particle-in-cell spray dro...

Synthesis of ZnO Nanoparticles by Spray Pyrolysis Method

Zinc oxide (ZnO) nanoparticles were synthesized by spray pyrolysis method using an aqueous solution of zinc acetate at various concentrations from 5 to 25 wt%. The decomposition of precursor solutions was carried out at 800, 1000 and 1200ºC under different atomizing pressures. The crystal structure and morphology of synthesized nanoparticles were characterized by X-Ray Diffraction ...

Cubic or monoclinic Y2O3:Eu nanoparticles by flame spray pyrolysis

Monocrystalline cubic and/or monoclinic Y2O3:Eu nanoparticles (10-50 nm) were synthesized continuously without post-processing by single-step flame spray pyrolysis (FSP). These particles were characterized by Xray diffraction (XRD), nitrogen adsorption (BET) and transmission electron microscopy (TEM). Photoluminescence (PL) emission was measured as well as the time-resolved PL-intensity decay. ...

Direct numerical Simulation of turbulent nonpremixed flame extinction by water spray

This paper presents a brief overview of our INCITE 2007 project on the direct numerical simulation of nonpremixed flames subjected to turbulent flows and water spray evaporation. The simulation is a culmination of our recent developments in advanced physical submodels associated with radiative heat transfer and Lagrangian spray dynamics. One of the main objectives is to identify and verify a un...

Design and Preliminary Characterization of an Experimental Set- up for Nanoparticles Synthesis through Flame Spray Pyrolysis