Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/78858
Type: Artigo de periódico
Title: Temporal evolution of soot particles from C2H2/O-2 combustion in a closed chamber
Author: Bertran, CA
Marques, CST
Benvenutti, LH
Abstract: An experimental study of soot formation in C2H2/O-2 flames at different C/O ratios in a closed chamber was carried out. The evolution temporal behavior and the volume fraction of soot particles were determined by laser extinction. It was found that total time for the soot formation phenomenon in flames from C2H2/O-2 with C/O ratio >0.75 or C2H2/O-2/Ar with C/O ratio = 1.00 was around 3.0-4.0 ms after ignition. At almost the same time the excited radicals reached their maximum emission intensity and the gases under combustion reached their maximum pressure. The micrographs show compact and approximately spherical soot particles with diameters within 60-150 nm. However, soot aggregates are not compact and they present a netlike structure similar to that of an aerogel.
Subject: soot formation
closed chamber
combustion
laser extinction
Country: Brasil
Editor: Soc Brasileira Quimica
Rights: aberto
Identifier DOI: 10.1590/S0103-50532002000100007
Date Issue: 2002
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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