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Cristin-resultat-ID:
1188978
Sist endret:
13. januar 2015, 13:46
NVI-rapporteringsår:
2014
Resultat
Vitenskapelig artikkel
2014
Modeling radiation in particle clouds: on the importance of inter-particle radiation for pulverized solid fuel combustion
Nils Erland L Haugen
og
Reginald E. Mitchell
Tidsskrift
Tidsskrift
Heat and Mass Transfer
ISSN 0947-7411
e-ISSN 1432-1181
NVI-nivå 1
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Om resultatet
Om resultatet
Vitenskapelig artikkel
Publiseringsår: 2014
Open Access
Lenker
Lenker
original online (doi)
https://doi.org/10.1007/s00231-014-1472-4
Institusjonsarkiv
hdl.handle.net/11250/2469790
Importkilder
Importkilder
Scopus-ID: 2-s2.0-84918555646
Scopus-ID: 2-s2.0-84939986030
Beskrivelse
Beskrivelse
Engelsk
Tittel
Modeling radiation in particle clouds: on the importance of inter-particle radiation for pulverized solid fuel combustion
Sammendrag
The importance of inter-particle radiation for clusters of gray and diffuse particles is investigated. The radiative cooling of each individual particle is found to vary strongly with its position in the cluster, and a “mean” radiative particle cooling term is proposed for single particle simulations of particle clusters or for high detail simulation, like Direct Numerical Simulations of small sub-volumes of large clusters of particles. Radiative cooling is shown to be important both for furnaces for coal gasification and coal combustion. Broadening the particle size distribution is found to have just a minor effect on the radiative particle cooling. This is particularly the case for large and dense particle clusters where there is essentially no effect of size distribution broadening at all. For smaller and more dilute particle clusters, the effect of distribution broadening is clear but still not dominant.
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Bidragsytere
Bidragsytere
Nils Erland L Haugen
Forfatter
ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
Forfatter
ved Termisk energi ved SINTEF Energi AS
Reginald E. Mitchell
Forfatter
ved Stanford University
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