KIT | KIT-Bibliothek | Impressum | Datenschutz

Modeling of radiation heat transfer in dense-bed flows of solids in indirectly heated rotary kilns

Tavakkol, Salar ORCID iD icon 1; Zirwes, Thorsten ORCID iD icon 2,3; Denev, Jordan A. 3; Bockhorn, Henning 2; Stapf, Dieter 1
1 Institut für Technische Chemie (ITC), Karlsruher Institut für Technologie (KIT)
2 Engler-Bunte-Institut (EBI), Karlsruher Institut für Technologie (KIT)
3 Scientific Computing Center (SCC), Karlsruher Institut für Technologie (KIT)

Abstract:

This work presents further development and validation of the Discrete Ordinates Model for thermal radiation implemented in OpenFOAM® for application to packed beds of particles. The radiation model is an important part of a more comprehensive model for simulating the thermochemical conversion of the discrete phase (here for instance wet biomass particles). The comprehensive Eulerian-Lagrangian model is part of a three-dimensional, time-resolved simulation of the essential chemical and physical processes occurring within and in-between particles in a moving bed.

For the thermal treatment of solid particles, convective and radiative heat transfer couple the energy exchange between the reactor wall, gas- and disperse phase. The original implementation of the finite volume Discrete Ordinate Model (fvDOM) present in OpenFOAM® is valid for a dilute particulate phase and neglects the effect of local opacity due to the existence of individual particles. In the present application, a dense-packed bed of the particulate phase exists in the reactor and, therefore, this direction-based radiation model is adjusted for a computational cell with arbitrary particle volume fractions.
... mehr


Postprint §
DOI: 10.5445/IR/1000153681
Veröffentlicht am 14.11.2023
Originalveröffentlichung
DOI: 10.1016/j.tsep.2022.101545
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Engler-Bunte-Institut (EBI)
Institut für Technische Chemie (ITC)
Scientific Computing Center (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 01.02.2023
Sprache Englisch
Identifikator ISSN: 2451-9049
KITopen-ID: 1000153681
HGF-Programm 38.05.01 (POF IV, LK 01) Anthropogenic Carbon Cycle
Weitere HGF-Programme 46.21.01 (POF IV, LK 01) Domain-Specific Simulation & SDLs and Research Groups
Erschienen in Thermal Science and Engineering Progress
Verlag Elsevier
Band 38
Seiten Article no: 101545
Vorab online veröffentlicht am 13.11.2022
Schlagwörter OpenFoam, radiation heat transfer, indirectly heated rotary kilns, Discrete Ordinate Model, DOM, LES-MPPIC, high Performance computing,
Nachgewiesen in Dimensions
Scopus
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page