Investigation of mass and energy coupling between soot particles and gas species in modelling counterflow diffusion flames

L. Zimmer, F.M. Pereira, J.A. Oijen, van, L.P.H. Goey, de

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

90 Downloads (Pure)

Abstract

A numerical model is developed aiming at investigating soot formation in ethylene counterflow diffusion flames at atmospheric pressure. In order to assess modeling limitations the mass and energy coupling between soot solid particles and gas-phase species are investigated in detail. A semi-empirical two equation model based on acetylene as the soot precursor is chosen for predicting soot mass fraction and number density. For the solid-phase the model describes particle nucleation, surface growth and oxidation. For the gas-phase a detailed kinetic mechanism is considered. Additionally, the effect of considering gas and soot radiation heat losses is evaluated in the optically thin limit approximation. The results show that for soot volume fractions higher than a certain threshold value the formation of the solid particles begins to significantly influence the gas-phase composition and temperature. The results also show that the inclusion of radiant heat losses decreases this influence. Keywords: Combustion, Soot model, Coupling effect, Counterflow flames
Original languageEnglish
Title of host publicationProceedings of the 7th European Combustion Meeting, March 30–April 2, 2015, Budapest, Hungary
Place of PublicationBudapest
PublisherMEB
PagesP3-76-
ISBN (Print)978-963-12-1257-0
Publication statusPublished - 2015
Event7th European Combustion Meeting (ECM 2015), March 30-April 2, 2015, Budapest, Hungary - Hilton Budapest, Budapest, Hungary
Duration: 30 Mar 20152 Apr 2015
http://ecm2015.combustioninstitute.hu/index.php/invitation/

Conference

Conference7th European Combustion Meeting (ECM 2015), March 30-April 2, 2015, Budapest, Hungary
Abbreviated titleECM 2015
CountryHungary
CityBudapest
Period30/03/152/04/15
Internet address

Fingerprint Dive into the research topics of 'Investigation of mass and energy coupling between soot particles and gas species in modelling counterflow diffusion flames'. Together they form a unique fingerprint.

  • Cite this

    Zimmer, L., Pereira, F. M., Oijen, van, J. A., & Goey, de, L. P. H. (2015). Investigation of mass and energy coupling between soot particles and gas species in modelling counterflow diffusion flames. In Proceedings of the 7th European Combustion Meeting, March 30–April 2, 2015, Budapest, Hungary (pp. P3-76-). MEB.