Factors Influencing the Ignition and Burnout of a Single Biomass Particle

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Abstract

Ignition and burnout of a single biomass particle were studied numerically. A one-dimensional particle combustion model was developed which is capable to simulate all the intraparticle conversion processes (drying, recondensation, devolatilization, char gasification/oxidation and heat/mass/momentum transfer) to investigate the conversion and ignition process of single biomass particle. The results indicated that the ignition occurrs homogeneously in all cases. Also the results showed that the homogeneous ignition delay was very sensitive to particle size and shape but the effects of oxygen concentration were not very significant. The influences of these factors on particle burnout were much more remarkable than ignition behaviour.
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Ignition and burnout of a single biomass particle were studied numerically. A one-dimensional particle combustion model was developed which is capable to simulate all the intraparticle conversion processes (drying, recondensation, devolatilization, char gasification/oxidation and heat/mass/momentum transfer) to investigate the conversion and ignition process of single biomass particle. The results indicated that the ignition occurrs homogeneously in all cases. Also the results showed that the homogeneous ignition delay was very sensitive to particle size and shape but the effects of oxygen concentration were not very significant. The influences of these factors on particle burnout were much more remarkable than ignition behaviour.
Original languageEnglish
Title of host publicationProceedings of the 5th European Combustion Meeting
Number of pages6
PublisherCardiff University
Publication date2011
StatePublished - 2011
Publication categoryResearch
Peer-reviewedYes
Event5th European Combustion Meeting - Cardiff, United Kingdom
Duration: 27 Jun 20121 Jul 2012

Conference

Conference5th European Combustion Meeting
LandUnited Kingdom
ByCardiff
Periode27/06/201201/07/2012
ID: 71052562