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    Soot Particle Size Distribution Functions in a Turbulent Non-Premixed Ethylene-Nitrogen Flame

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    FTaC_Boyette_Final_r4.pdf
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    Description:
    Accepted Manuscript
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    Type
    Article
    Authors
    Boyette, Wesley cc
    Chowdhury, Snehaunshu cc
    Roberts, William L. cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    high-pressure combustion (HPC) Research Group
    Date
    2017-02-21
    Online Publication Date
    2017-02-21
    Print Publication Date
    2017-06
    Permanent link to this record
    http://hdl.handle.net/10754/622933
    
    Metadata
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    Abstract
    A scanning mobility particle sizer with a nano differential mobility analyzer was used to measure nanoparticle size distribution functions in a turbulent non-premixed flame. The burner utilizes a premixed pilot flame which anchors a C2H4/N2 (35/65) central jet with ReD = 20,000. Nanoparticles in the flame were sampled through a N2-filled tube with a 500- μm orifice. Previous studies have shown that insufficient dilution of the nanoparticles can lead to coagulation in the sampling line and skewed particle size distribution functions. A system of mass flow controllers and valves were used to vary the dilution ratio. Single-stage and two-stage dilution systems were investigated. A parametric study on the effect of the dilution ratio on the observed particle size distribution function indicates that particle coagulation in the sampling line can be eliminated using a two-stage dilution process. Carbonaceous nanoparticle (soot) concentration particle size distribution functions along the flame centerline at multiple heights in the flame are presented. The resulting distributions reveal a pattern of increasing mean particle diameters as the distance from the nozzle along the centerline increases.
    Citation
    Boyette W, Chowdhury S, Roberts W (2017) Soot Particle Size Distribution Functions in a Turbulent Non-Premixed Ethylene-Nitrogen Flame. Flow, Turbulence and Combustion. Available: http://dx.doi.org/10.1007/s10494-017-9802-5.
    Sponsors
    The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
    Publisher
    Springer Nature
    Journal
    Flow, Turbulence and Combustion
    DOI
    10.1007/s10494-017-9802-5
    Additional Links
    http://link.springer.com/article/10.1007/s10494-017-9802-5
    ae974a485f413a2113503eed53cd6c53
    10.1007/s10494-017-9802-5
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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