Determination of the Bed Hydrodynamics by MFIX-PIC in the Biomass Gasification Process of Circulating Fluidized Bed

نویسندگان

چکیده

In this study, it was aimed to control the formation of flow regimes planned be in gasification process on model, and hydrodynamic structure circulating fluidized bed gasifier obtained using MFIX program. For purpose, a model established before pilot scale systems modeling performed by entering system dimensions that were calculated analytically. Because is necessary condition from point view chemical reaction ensure fluid regime gasifier, which designated as solid condition. reason, whose geometry determined semi-empirical modeled under previously operating conditions PIC (Eulerian-Lagrangian) package program.In technique, while behavior resolved Euler structure, particle behaviour considered Lagrangian structure. The numeral effects are great arrangement with empiric datum showing MFIX-PIC methods reasonable among concentrated gas-solid network simulation. primary characteristics streams CFB qualitatively an ordinary annular flux form inside main bed. pressure inclination formed gas phase lower upper zones column indicated turbulent irregular zones. increased superficial velocity conducts further dissymmetrical axial shows improved effect recycling frame for homogeneity due over velocity. result modelling found 7m/s 100 kWth yield gasifier. most basic parameter used both experimental thermochemical

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ژورنال

عنوان ژورنال: Gazi university journal of science part a:engineering and innovation

سال: 2021

ISSN: ['2147-9542']

DOI: https://doi.org/10.54287/gujsa.1030632