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dc.contributor.authorKarchniwy, Ewa Malgorzata
dc.contributor.authorHaugen, Nils Erland L
dc.contributor.authorKlimanek, Adam F.
dc.contributor.authorLangørgen, Øyvind
dc.contributor.authorSladek, Slawomir
dc.date.accessioned2021-08-19T12:12:43Z
dc.date.available2021-08-19T12:12:43Z
dc.date.created2021-01-13T13:27:51Z
dc.date.issued2021
dc.identifier.citationCombustion and Flame. 2021, 227 65-78.en_US
dc.identifier.issn0010-2180
dc.identifier.urihttps://hdl.handle.net/11250/2770322
dc.description.abstractIn this paper, a kinetic-diffusion surface combustion model is examined. The model is modified such that two effects of turbulence are included: 1) enhancement of the mass transfer due to relative velocity between particles and fluid and 2) reduction of the mass transfer due to turbulence-induced particle clustering. Details of the implementation are discussed and the influence of parameters such as air-fuel ratio, particle number density, particle diameter, turbulence intensity and characteristic length scales are studied theoretically. A simplified numerical model of a combustion chamber is created to explore the effects of the combustion model predictions. Finally, the model is incorporated into simulations of an industrial-scale boiler to investigate the effect of turbulence on the net surface reaction rate in a real system. The study shows that although on average this effect is rather minor, there exist regions in which the carbon conversion rate is either decreased or increased by turbulence. Keywords Combustion kineticsCombustion ratesChar oxidationDiffusion regimeen_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleThe effect of turbulence on mass transfer in solid fuel combustion: RANS modelen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holderThe Authorsen_US
dc.source.pagenumber65-78en_US
dc.source.volume227en_US
dc.source.journalCombustion and Flameen_US
dc.identifier.doi10.1016/j.combustflame.2020.12.040
dc.identifier.cristin1870667
dc.relation.projectNorges forskningsråd: 267916en_US
dc.relation.projectEC/H2020/764697en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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