In this study, the synergistic elfects of ethylene-propane
and ethylene-dimethyl ester (DME) mirtures on soot
formation were investigated experimentully using u coflow
dilfusion flame burnen The soot volume fraction,
soot particle diameter and number density were measured
and compured to the homogenous mixture. Addition
of DME and propane to the ethylene fuel increased
soot volume fraction in the ethylene flames. The ethylene-
propnne has more pronounced synergistic ffict in
compsrison to the ethylene-DME flame* This is due
to the fact that during the decomposition of propane
some methyl radicals are generated, The reuctions
related to these methyl radicals promote the formation
of propargyl rodiculs and conseqaently the formation
of benzene through propargyl self-reaction and finally
to the soot formation. Althoagh DME decomposition
produces methyl, the C-O bond in the DME removes
some carbon from the reaction puth that produces soot,
Hence the soot formation in ethylene-DME mixture is
much slower than that in ethylene-propane mixtuFe,
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1000860 |
| Date | 07 May 2007 |
| Creators | Mbarawa, M, Lee, W, Nam, YW, Chung, SH |
| Publisher | R&D Journal of the South African Institution of Mechanical Engineering |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | |
| Rights | R&D Journal of the South African Institution of Mechanical Engineering |
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