Soot measurement in diluted methane diffusion flames by multi-pass extinction and laser-induced incandescence
Journal article
Tian, Bo, Gao, Yi, Zhang, Cen and Hochgreb, Simone 2018. Soot measurement in diluted methane diffusion flames by multi-pass extinction and laser-induced incandescence. Combustion and Flame. 192, pp. 224-237. https://doi.org/10.1016/j.combustflame.2018.01.037
| Authors | Tian, Bo, Gao, Yi, Zhang, Cen and Hochgreb, Simone |
|---|---|
| Abstract | Multi-pass cavity line-of-sight extinction (MPC-LOSE) and laser-induced incandescence (LII) techniques are deployed to measure the soot volume fraction in a series of nitrogen-diluted flames, which produce only ppm volume mass fractions of soot. The separate suppression effects on soot formation of direct fuel dilution and indirect effects of temperature and residence time are interpreted by using a numerically calculated flow velocity and temperature field using a one-step fast chemistry model. The experimentally determined rate of soot formation is shown to obey approximately the same function of the local temperature for all dilution cases. The results show that a simple one-step reaction model using previously measured activation energies can account for the dilution effect with good accuracy. The results show that the direct effect of dilution on concentration is comparable to the effects of changing the temperature estimated local temperature and residence time. |
| Keywords | Fuel Technology; General Physics and Astronomy; Energy Engineering and Power Technology; General Chemistry; General Chemical Engineering |
| Year | 2018 |
| Journal | Combustion and Flame |
| Journal citation | 192, pp. 224-237 |
| Publisher | Elsevier BV |
| ISSN | 0010-2180 |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.combustflame.2018.01.037 |
| Web address (URL) | http://hdl.handle.net/10545/624862 |
| https://www.elsevier.com/tdm/userlicense/1.0/ | |
| hdl:10545/624862 | |
| Publication dates | 20 Mar 2018 |
| Publication process dates | |
| Deposited | 03 Jun 2020, 09:15 |
| Accepted | 26 Jan 2018 |
| Rights | © 2018 The Author(s). Published by Elsevier Inc. on behalf of The Combustion Institute. |
| Contributors | University of Cambridge |
| File | File Access Level Open |
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