Abstract
In this work, different morphological parameters of soot are investigated using multi-angle light scattering and extinction, at elevated pressures. N2-diluted ethylene/air counterflow diffusion flames are stabilized inside the pressure vessel at pressures up to 5 atm. The pressure vessel can provide optical access for multi-angle light scattering from 10 to 170 degrees. An Ar/Kr ion laser beam emitted at 514.5 nm wavelength is focused at the center of the flame and light scattered by soot particles is measured, at several angles between 25° to 165°, by light collection optics that are mounted on a rotary stage. A global strain rate of 30s-1 is maintained for all pressures by adjusting the inlet flow. The scattering measurements are analyzed using Rayleigh-Debye-Gans theory for polydisperse fractal aggregates and scattering to absorption ratio, soot volume fraction, mean particle diameter and aggregate size distribution are calculated through the 1-D flame as a function of pressure
| Original language | English |
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| Title of host publication | 10th U.S. National Combustion Meeting |
| Publisher | Combustion Institute |
| ISBN (Print) | 9781510842380 |
| Publication status | Published - 2017 |
| Event | 10th U.S. National Combustion Meeting - University of Maryland College Park Marriott Hotel and Conference CenterCollege Park, United States Duration: 23 Apr 2017 → 26 Apr 2017 https://www.combustioninstitute.org/ci-event/10th-us-national-combustion-meeting/ |
Conference
| Conference | 10th U.S. National Combustion Meeting |
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| Country/Territory | United States |
| Period | 23/04/17 → 26/04/17 |
| Internet address |