The effects of hydrogen addition on silica aggregate growth in atmospheric-pressure, 1-D methane/air flames with hexamethyldisiloxane admixture

Langenkamp, Peter N.; Levinsky, Howard; Mokhov, Anatoli

doi:10.1016/j.ijhydene.2017.12.022

Cited by 1 publication

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“…The measurements of particle size in the postflame zone were performed by laser light scattering, as described in our previous study [33]; the setup is also shown in Figure 2. In short, a laser beam is directed through the flame, and scattered light is detected at four different angles, .…”

Section: Soot Measurementsmentioning

confidence: 99%

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C₂H₄/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

Langenkamp

Oijen

Levinsky

et al. 2018

Journal of Combustion

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The growth of soot volume fraction and aggregate size was studied in burner-stabilized premixed C2H4/air flames with equivalence ratios between 2.0 and 2.35 as function of height above the burner using laser-induced incandescence (LII) to measure soot volume fractions and angle-dependent light scattering (ADLS) to measure corresponding aggregate sizes. Flame temperatures were varied at fixed equivalence ratio by changing the exit velocity of the unburned gas mixture. Temperatures were measured using spontaneous Raman scattering in flames with equivalence ratios up to ϕ = 2.1, with results showing good correspondence (within 50 K) with temperatures calculated using the San Diego mechanism. Both the soot volume fraction and radius of gyration strongly increase in richer flames. Furthermore, both show a nonmonotonic dependence on flame temperature, with a maximum occurring at ~1675 K for the volume fraction and ~1700 K for the radius of gyration. The measurement results were compared with calculations using two different semiempirical two-equation models of soot formation. Numerical calculations using both mechanisms substantially overpredict the measured soot volume fractions, although the models do better in richer flames. The model accounting for particle coagulation overpredicts the measured radii of gyration substantially for all equivalence ratios, although the calculated values improve at ϕ = 2.35.

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Section: Soot Measurementsmentioning

confidence: 99%

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C₂H₄/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

Langenkamp

Oijen

Levinsky

et al. 2018

Journal of Combustion

View full text Add to dashboard Cite

show abstract

The effects of hydrogen addition on silica aggregate growth in atmospheric-pressure, 1-D methane/air flames with hexamethyldisiloxane admixture

Abstract: The effects of hydrogen addition on silica aggregate growth in atmospheric-pressure, 1-D methane/air flames with hexamethyldisiloxane admixture.

Cited by 1 publication

References 44 publications

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C₂H₄/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C₂H₄/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

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The effects of hydrogen addition on silica aggregate growth in atmospheric-pressure, 1-D methane/air flames with hexamethyldisiloxane admixture

Abstract: The effects of hydrogen addition on silica aggregate growth in atmospheric-pressure, 1-D methane/air flames with hexamethyldisiloxane admixture.

Cited by 1 publication

References 44 publications

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C2H4/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C2H4/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

Contact Info

Product

Resources

About

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C₂H₄/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering

Growth of Soot Volume Fraction and Aggregate Size in 1D Premixed C₂H₄/Air Flames Studied by Laser-Induced Incandescence and Angle-Dependent Light Scattering