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Modeling aerosol formation in opposed-flow diffusion flames.

Angela Violi·Andrea D'Anna·Antonio D'Alessio·Adel F Sarofim
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Abstract

The microstructures of atmospheric pressure, counter-flow, sooting, flat, laminar ethylene diffusion flames have been studied numerically by using a new kinetic model developed for hydrocarbon oxidation and pyrolysis. Modeling results are in reasonable agreement with experimental data in terms of concentration profiles of stable species and gas-phase aromatic compounds. Modeling results are used to analyze the controlling steps of aromatic formation and soot growth in counter-flow configurations. The formation of high molecular mass aromatics in diffusion controlled conditions is restricted to a narrow area close to the flame front where these species reach a molecular weight of about 1000 u. Depending on the flame configuration, soot formation is controlled by the coagulation of nanoparticles or by the addition of PAH to soot nuclei.

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AerosolsAir MovementsAir PollutantsAtmospheric PressureDiffusionIncinerationKineticsModels, TheoreticalMolecular WeightOxidation-ReductionRefuse DisposalJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.

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Angela Violi, Andrea D'Anna, Antonio D'Alessio, Adel F Sarofim. 2003. Modeling aerosol formation in opposed-flow diffusion flames.. https://doi.org/10.1016/s0045-6535(03)00125-5

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