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An Eulerian-Lagrangian method for wet biomass carbonization in rotary kiln reactors

Tavakkol, Salar; Zirwes, Thorsten; Denev, Jordan A.; Jamshidi, Farshid; Weber, Niklas; Bockhorn, Henning; Trimis, Dimosthenis

Abstract (englisch):
This study presents numerical simulations of rotary kiln reactors for wet biomass carbon-ization. For this, a numerical tool has been developed resolving the carbonization process in time and space. Biomass particles are represented by Lagrangian particles that collide and form a moving bed. The gas phase is treated as an Eulerian phase. Both phases are fully coupled with the exchange of momentum, energy, and mass of chemical species. The tool is implemented in the open-source OpenFOAM® framework and additional submodels for devolatilization, drying and radiation have been developed for the condi-tions relevant during the carbonization process. In this way, models for the complex physical processes are combined in a single simulation tool.
A rotary kiln reactor of laboratory-scale is used to validate the numerical tool and to perform parameter studies to determine biomass conversion in dependence on the wall temperatures. The results also give insight into the sensitivity of biomass to carbon con-version with respect to the biomass moisture content and mass flow rate. The validated tool is used to perform simulations of an industrial-scale rotary kiln reactor, which are carried out on a supercomputer on up to 1120 CPU cores. ... mehr

DOI: 10.1016/j.rser.2020.110582
Zugehörige Institution(en) am KIT Engler-Bunte-Institut (EBI)
Steinbuch Centre for Computing (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 11.2020
Sprache Englisch
Identifikator ISSN: 1364-0321
KITopen-ID: 1000127877
HGF-Programm 34.14.02 (POF III, LK 01) Vergasung
Erschienen in Renewable & sustainable energy reviews
Verlag Elsevier
Seiten Art.-Nr.: 110582
Schlagwörter Biomass carbonization; process optimization; industrial-scale simulation; LES-MP-PIC; High-Performance Computing; OpenFOAM
Nachgewiesen in Scopus
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