Imperial College London
Portrait Picture

ProfessorPavlosAleiferis

Faculty of Engineering, Department of Mechanical Engineering

Chair in Thermofluids
 
 
 
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Contact

 

+44 (0)20 7594 7032p.aleiferis

 
 
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Assistant

 

Ms Eniko Jarecsni +44 (0)20 7594 7029

 
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Location

 

615City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Shariatmadar:2022:10.1016/j.combustflame.2021.111978,
author = {Shariatmadar, S and Aleiferis, P and Lindstedt, R},
doi = {10.1016/j.combustflame.2021.111978},
journal = {Combustion and Flame},
pages = {1--20},
title = {Particle size distributions in turbulent premixed ethylene flames crossing the soot inception limit},
url = {http://dx.doi.org/10.1016/j.combustflame.2021.111978},
volume = {243},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The current study presents novel experimental data on soot particle size distributions (PSDs) with mobility diameters in the size range 4 ≤ Dm [nm] ≤ 230 obtained from four premixed turbulent ethyleneair flames crossing the soot inception limit. The flames are stabilised against hot combustion productsfrom nitrogen diluted hydrogen flames in a back-to-burnt (or fresh-to-burnt) opposed jet configuration.The burner features fractal grid generated turbulence to provide accurate control of the turbulence. Ascanning mobility particle sizer (SMPS) equipped with nano- and long–DMA columns coupled with adual dilution port quartz probe is used and a comprehensive analysis of optimal sampling conditionsto minimise particle losses is presented. Spatially resolved data along the stagnation point streamlineis obtained to show the evolution of PSDs through the turbulent flame brush. It is shown that turbulent transport distributes soot particles across the mixing layer between the two jets with the maximummedian and mean mobility diameters found close to the stagnation point. The impact of the estimatedtotal mean rate of strain (420 ≤ aT [s−1] ≤ 610) and equivalence ratio (1.8 ≤ φUN ≤ 2.2) on PSDs is alsoquantified.
AU  - Shariatmadar,S
AU  - Aleiferis,P
AU  - Lindstedt,R
DO  - 10.1016/j.combustflame.2021.111978
EP  - 20
PY  - 2022///
SN  - 0010-2180
SP  - 1
TI  - Particle size distributions in turbulent premixed ethylene flames crossing the soot inception limit
T2  - Combustion and Flame
UR  - http://dx.doi.org/10.1016/j.combustflame.2021.111978
UR  - https://www.sciencedirect.com/science/article/pii/S0010218021007215?via%3Dihub
UR  - http://hdl.handle.net/10044/1/93832
VL  - 243
ER  -
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