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Verifikacija matematičkog modela sagorevanja sprašenog uglja u vrtložnim gorionicima
Verification of the mathematical model of pulverized coal combustion in swirl burners
dc.creator | Saljnikov, Aleksandar | |
dc.creator | Komatina, Mirko | |
dc.creator | Goričanec, Darko | |
dc.date.accessioned | 2022-09-19T15:57:48Z | |
dc.date.available | 2022-09-19T15:57:48Z | |
dc.date.issued | 2006 | |
dc.identifier.issn | 1451-2092 | |
dc.identifier.uri | https://machinery.mas.bg.ac.rs/handle/123456789/637 | |
dc.description.abstract | Prikazan je matematički model sagorevanja ugljenog praha u ložištu sa vrtložnim gorionicima. Model se zasniva na dvojednačinskom k-ε simulacionom modelu jednofaznog turbulentnog strujanja, a koji uzima u obzir prisustvo čvrste faze putem PSI-Cell metode. Disperzna faza se tretira Lagranževskim stohastičko - determinističkim modelom. Prenos toplote zračenjem se tretira pomoću metode Šest flukseva. Devolatilizacija uglja, kao i homogene i heterogene reakcije su modelirane skupa koristeći model globalnog sagorevanja uz upotrebu sopstvenih podataka o kinetici reakcije. Model se verifikuje poređenjem računskih i eksperimentalnih rezultata pri sagorevanju polidisperznog ugljenog praha u dva eksperimentalna ložišta. Zaključeno je da se ovaj model može sa uspehom iskoristiti za predviđanje, optimizaciju i projektovanje vrtložnih gorionika za različite geometrijske, strujne i temperaturske granične uslove kao i ugljeve različitog kvaliteta. | sr |
dc.description.abstract | Mathematical model of pulverized coal combustion in furnaces with swirl burners is presented. The model is based on two equation k-ε single phase turbulent flow simulation model, considering presence of the solid phase via PSI-Cell method. Disperse phase is treated by Lagrangian Stochaistic Deterministic model. The radiation heat transfer is treated via Six-Flux method. Coal devolatilization, homogeneous and heterogeneous reactions are modeled together via global combustion model using own reaction kinetics data. Model was verified comparing computational and experimental results for combustion of polydisperse pulverized coal in two experimental furnaces. It is concluded that the model can be successfully used for prediction optimization of parameters and design of swirl burners, for different burner geometries, flow and temperature boundary conditions and coals of different rank. | en |
dc.publisher | Univerzitet u Beogradu - Mašinski fakultet, Beograd | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | FME Transactions | |
dc.subject | turbulence | en |
dc.subject | swirl | en |
dc.subject | pulverized coal | en |
dc.subject | combustion | en |
dc.subject | burners | en |
dc.title | Verifikacija matematičkog modela sagorevanja sprašenog uglja u vrtložnim gorionicima | sr |
dc.title | Verification of the mathematical model of pulverized coal combustion in swirl burners | en |
dc.type | article | |
dc.rights.license | BY | |
dc.citation.epage | 52 | |
dc.citation.issue | 1 | |
dc.citation.other | 34(1): 45-52 | |
dc.citation.spage | 45 | |
dc.citation.volume | 34 | |
dc.identifier.fulltext | http://machinery.mas.bg.ac.rs/bitstream/id/2540/634.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_machinery_637 | |
dc.type.version | publishedVersion |