Fluidization of Geldart A particles: Experiments and Validation
ORAL
Abstract
We will present results from fluidization experiments performed at US Department of Energy's National Energy Technology Laboratory (NETL). Glass particles classified as Geldart A are used and the experiments are conducted over a broad range of air flow rates. The relative humidity is controlled to minimize short-range inter-particle forces and to ensure reproducibility. The design of experiments includes randomization and replicates to minimize uncertainty in measurements. Besides aiding in understanding multiphase dynamics in a fluidized system, the data provides valuable benchmark for computational codes used to analyze gas-solid flows. NETL's open-source software MFiX (Multiphase Flow with Interphase Exchanges) is used for validation in our current study. The results from Two-Fluid model (Eulerian-Eulerian) and Particle-In-Cell (Eulerian-Lagrangian) approaches are compared. The applicability of MFiX Particle-In-Cell methodology for a large particle count system is highlighted, which offers considerable potential for industrial applications.
*This work was performed in support of the US Department of Energy’s Fossil Energy Crosscutting Technology Research Program. The Research was executed through the NETL Research and Innovation Center’s Advanced Reaction Systems FWP. Research performed by Leidos Research Support Team staff was conducted under the RSS contract 89243318CFE000003
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