ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
Copyright © 2024 KICHE. All rights reserved

Articles & Issues

Language
English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received August 22, 2006
Accepted October 9, 2006
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.

All issues

Deposit morphology on SiC fibers in methane-acetylene/air laminar diffusion flames

Key Laboratory for Thermal Science and Power Engineering, Ministry of Education of China, Tsinghua University, Beijing, 100084, China
Korean Journal of Chemical Engineering, March 2007, 24(2), 305-310(6), 10.1007/s11814-007-5036-x
downloadDownload PDF

Abstract

The morphologies of soot deposit on 15 μm diameter silicon carbide (SiC) fibers have been investigated with a scanning electron microscope (SEM) in methane-acetylene/air laminar diffusion flames with co-flowing air. The morphologies are shown to be strongly dependent on the fuels ratio. Two kinds of processes by which mature soot particles are produced were proved to exist in a sooting flame: one is the transition from the condensed-phase deposits; the other is the aggregation of the smaller soot particles (or chains of them) carried along the particle path line. Different transition processes are compared between the present work and previous work done by other researchers that usedpropane/air laminar diffusion flames. It seems the presence of C=C in methane-acetylene laminar diffusion flames is the key factor that causes the difference of transition processes in those two kinds of flames.

References

Shim SH, Shin HD, Combust. Flame, 131(1-2), 210 (2002)
Shim SH, Ahn KY, Jeong SH, Keel SI, Shin HD, Appl. Energy, 79(2), 179 (2004)
Frenklach M, Taki S, Durgaprasad MB, Matula RA, Combust. Flame, 54, 81 (1983)
Bertrand C, Delfau JL, Combust. Sci. Technol., 44, 29 (1985)
Rah SC, Korean J. Chem. Eng., 2(1), 1 (1985)
Glassman I, Twenty-second symposium, the combustion institute, Pittsburgh, Pennsylvania, 295 (1988)
Saito K, Gordon AS, Williams FA, Stickle WF, Combust. Sci. Technol., 80, 103 (1991)
Said R, Garo A, Borghi R, Combust. Flame, 108(1-2), 71 (1997)
Choi HK, Park SJ, Lim JH, Kim SD, Park HS, Park YO, Korean J. Chem. Eng., 19(2), 342 (2002)
Choi JH, Ha SJ, Park YO, Korean J. Chem. Eng., 19(4), 711 (2002)
Liu FS, Guo HS, Smallwood GJ, Gulder OL, Combustion Theory Modeling, 7, 301 (2003)
Ryu HJ, Lim NY, Bae DH, Jin GT, Korean J. Chem. Eng., 20(1), 157 (2003)
Oh KC, Do Lee U, Shin HD, Lee EJ, Combust. Flame, 140(3), 249 (2005)
Haynes BS, Wagner HG, Energy Combustion Science, 7, 229 (1981)
Frenklach M, Clary DW, Gardiner WC, Stein SE, Twenty-first symposium on combustion, the combustion institute, Pittsburgh, Pennsylvania, 1067 (1986)
Blevins LG, Renfro MW, Lyle KH, Laurendeau NM, Gore JP, Combust. Flame, 118, 684 (1999)

The Korean Institute of Chemical Engineers. F5, 119, Anam-ro, Seongbuk-gu, 233 Spring Street Seoul 02856, South Korea.
TEL. No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Journal of Chemical Engineering 상단으로