Title

Chemical Effects Of Co2 Addition On Soot Formation In Laminar C2H4 Diffusion Flames

Abstract

The chemical effect was studied by detailed species concentrations measurement using GC. Other experiments performed included measuring soot volume fraction by laser extinction and flame temperature by rapid insertion thermocouple method. Due to large dilution levels and small soot concentrations, the multilane emission method was not used for the temperature measurement. Addition of CO enhanced the formation of CO through the CO + H → CO + OH reaction by as much as 20% when comparing with the measured CO concentrations in Ar, He, and N diluted CH flames. The enhanced OH concentrations resulting from CO chemistry enhanced the oxidation of soot particles, while the decreased H concentration reduced the soot growth rate via the Hydrogen-Abstraction-Carbon-Addition (HACA) soot growth mechanism. Using the empirical soot growth correlations based on the HACA model, the H radicals were in super-equilibrium concentrations. This is an abstract of a paper presented at the 30th International Symposium on Combustion (Chicago, IL 7/25-30/2004).

Publication Date

1-1-2004

Publication Title

International Symposium on Combustion, Abstracts of Works-in-Progress Posters

Number of Pages

131-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

10644247781 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/10644247781

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