SpraySyn-A standardized burner configuration for nanoparticle synthesis in spray flames.

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ID: 31916
2019
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Ranked #20 of 39 articles by views in The Review of scientific instruments

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Abstract
In many scientific communities, the definition of standardized experiments has enabled major progress in process understanding. The investigation of the spray-flame synthesis of nanoparticles at a well-defined standard burner by experiment and simulation makes it possible to produce a comprehensive data set with various established and novel measuring methods. In this work, we introduce the design of the SpraySyn burner as a new standard for a free-jet type burner that offers well-defined and simulation-friendly boundary conditions and geometries as well as accessibility for optical diagnostics. A combustible precursor solution is fed through a centrally located capillary and aerosolized with an oxygen dispersion gas flow. The spray flame is stabilized by a premixed flat methane/oxygen pilot flame fed via a porous bronze matrix surrounded by a stabilizing nitrogen coflow emanating through the same porous matrix, providing easy-to-calculate boundary conditions for simulations. This burner design enables the use of a wide choice of solvents, precursors, and precursor combinations. Best-practice operating instructions and parameters are given, and large-eddy simulations are performed demonstrating the suitability of the SpraySyn burner for computational fluid dynamics simulations. For ensuring reproducible operation across labs, we define a consumer-camera-based flame characterization scheme for the quantitative assessment of the flame geometry such as flame length, diameter, tilt angle, and photometric distribution of visible chemiluminescence along the center axis. These parameters can be used for benchmarking the pilot and spray flame by each user of the SpraySyn burner with the reference flames.
Reference Key
schneider2019spraysynathe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Schneider, F;Suleiman, S;Menser, J;Borukhovich, E;Wlokas, I;Kempf, A;Wiggers, H;Schulz, C;
Journal The Review of scientific instruments
Year 2019
DOI
10.1063/1.5090232
URL
Keywords Keywords not found

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