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Showing 1 to 6 of 6 for “"Char Oxidation"”.
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Modeling of char oxidation in fluidized bed biomass gasifiers : effects of transport and chemical kinetics
… syngas as an intermediate to liquid fuels. The char that is left in the reactor after devolatilization can be oxidized in order to maximize the amount of biomass carbon that is converted to gaseous carbon and generate heat to drive endothermic gasification reactions. This paper examines the rate …
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A Computational Fluid Dynamics Model to Simulate Wood Combustion
… coupled phases, namely, dehydration, pyrolysis, char oxidation, and gas phase combustion. These phases involve several heat transfer processes including radiation from the surrounding flames and surfaces onto the wood surface, convection with the bulk gas flow, radiation losses from the wood …
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Effects of Pressure on Coal Pyrolysis at High Heating Rates and Char Combustion
… The effect of pressure on coal pyrolysis and char combustion has been extensively studied but still remains to be further explored. The objective of this project was to characterize high pressure, high heating rate coal pyrolysis and char combustion, with emphasis on improving coal/char high …
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Experimental and Modeling Investigations of Biomass Particle Combustion
… and flame temperatures during pyrolysis and char burning processes. This technique employs widely available and relative inexpensive cameras and detectors. The camera-measured temperature data agree with black body calibration data within the accuracy of the data (± 20°C) and with …
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Modeling Three Reacting Flow Systems with Modern Computational Fluid Dynamics
… and coal reactions models for devolatilization, char oxidation, and vaporization. Each implemented model was tested to verify its accuracy by comparison of model predictions with experimental data. All implemented coal submodels were validated by comparison between overall modeling predictions …
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Fundamental studies of the behaviour of biomass and waste materials in gasification systems
… experimental study, at laboratory scale, of the characteristics and behaviour of a range of biomass and waste materials, relevant to their utilisation as fuels in gasification systems. The range of fuels studied includes the biomass materials, cereal straw, short rotation coppice wood and pine …