Mathematical Modeling of a Fluidized Bed Rice Husk Gasifier: Part III - Model Verification

The validity of the two-compartment model developed for fluidized bed gasification of biomass was tested using experimental data obtained from a dual-distributor-type fluidized bed gasifier. The fluidized bed was operated on rice husks at various bed heights (19.5, 25.5, and 31.5 cm), fluidization v...

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Bibliographic Details
Published in:Energy sources 2000-04, Vol.22 (3), p.281-296
Main Authors: MANSARAY, K. G, GHALY, A. E, AL-TAWEEL, A. M, UGURSAL, V. I, HAMDULLAHPUR, F
Format: Article
Language:English
Subjects:
Applied sciences
Biomass
Carbon
Conversion
Equivalence
Ratio
Fluidization
Velocity
Fluidized
Bed
Gasifier
Gas
Composition
Gasification
Higher
Heating
Value
Mathematical
Model
Rice
Husk
Temperature
Energy
Exact sciences and technology
Natural energy
Oryza sativa
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Summary:The validity of the two-compartment model developed for fluidized bed gasification of biomass was tested using experimental data obtained from a dual-distributor-type fluidized bed gasifier. The fluidized bed was operated on rice husks at various bed heights (19.5, 25.5, and 31.5 cm), fluidization velocities (0.22, 0.28, and 0.33 m/s), and equivalence ratios (0.25, 0.30, and 0.35). The model gave reasonable predictions of the core, annulus, and exit temperatures as well as the mole fractions of the combustible gas components and product gas higher heating value, except for the overall carbon conversion, which was overestimated. This could be attributed to uncertainties in the sampling procedure.
ISSN:0090-8312
1556-7036
1521-0510
1556-7230
DOI:10.1080/00908310050014063