Artikel
Lizenziert
Nicht lizenziert
Erfordert eine Authentifizierung
CFD Modelling of Global Mixing Parameters in a Peirce-Smith Converter with Comparison to Physical Modelling
-
Deside K Chibwe
Veröffentlicht/Copyright:
29. Juli 2011
The flow pattern and mixing in an industrial Peirce-Smith converter (PSC) has been experimentally and numerically studied using cold model simulations. The effects of air volumetric flow rate and presence of overlaying slag phase on matte on the flow structure and mixing were investigated. The 2-D and 3-D simulations of the three phase system were carried out using volume of fluid (VOF) and realizable k - ɛ turbulence model to account for the multiphase and turbulence nature of the flow respectively. These models were implemented using commercial Computational Fluid Dynamics (CFD) numerical code FLUENT. The cold model for physical simulations was a 1:5 horizontal cylindrical container made of Perspex with seven tuyeres on one side of the cylinder typifying a Peirce-Smith converter. Compressed air was blown into the cylinder through the tuyeres, simulating air or oxygen enriched air injection into the PSC. The matte and slag phases were simulated with water and kerosene respectively in this study. The influence of varying blowing conditions and simulated slag quantities on the bulk mixing was studied with five different air volumetric flow rates and five levels of simulated slag thickness. Mixing time results were evaluated in terms of total specific mixing power and two mixing time correlations were proposed for estimating mixing times in the model of PSC for low slag and high slag volumes. Both numerical and experimental simulations were in good agreement to predict the variation characteristics of the system in relation to global flow field variables set up in the converter through mathematical calculation of relevant integrated quantities of turbulence, Volume Fraction (VF) and velocity magnitudes. The findings revealed that both air volumetric flow rate and presence of the overlaying slag layer have profound effects on the mixing efficiency of the converter.
Published Online: 2011-7-29
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Artikel in diesem Heft
- Article
- Controllability of Distillation Sequences for the Separation of Ternary Mixture
- Model Order Reduction and the Heat Transfer Modelling of a Heat Exchanger by Using Artificial Neural Approach
- Polyhedral Particles Hopper Flowrate Predictions using Discrete Element Method
- Microfluidics of Nanodrug Delivery: Effect of Reynolds Number Ratio and Particle Size
- CFD Simulation of Water Gas Shift Membrane Reactor--Pressure Effects on the Performance of the Reactor
- Simulation of an Industrial Linear Low Density Polyethylene Plant
- Wet Gas Measurement with Slotted Orifice Meter--Effect of Geometry of Slots and Pressure
- Modeling of a Fixed-Bed Reactor for the Production of Phthalic Anhydride
- Nonlinear Modeling for the Degradation of Aqueous Azo Dyes by Combined Advanced Oxidation Processes Using Artificial Neural Networks
- Selection of Suitable Turbulence Models for Numerical Modelling of Hydrocyclones
- A Hybrid Model of Solvent Hehydratic Distillation Column Based on Mechanism and LS-SVM
- Heterogeneous Model of the Process of Clavulanic Acid Purification by Ionic Exchange in a Fixed-Bed Column
- Coarse-Grained Molecular Dynamics Simulation of Lysozyme Protein Crystals
- Coupling Swelling and Water Retention Processes in Compacted Bentonite
- Adaptive Feedback Linearization Control of SISO Nonlinear Processes Using a Self-Generating Neural Network-Based Approach
- Solid-Liquid Equilibrium of Xylose in Water and Ethanol/Water Mixture
- Simulation of Hydrodesulfurization Trickle Bed Reactor
- Modeling Traffic-Emitted Ultrafine Particle Concentration and Intake Fraction in Corpus Christi, Texas
- Optimum Acetone and Ethanol Extraction of Polyphenols from Pinus caribaea Bark: Maximizing Tannin Content Using Response Surface Methodology
- Modeling of Thin Layer Drying of Banana (Nendran Spp) under Microwave, Convective and Combined Microwave-Convective Processes
- Structured Model of VERO Cells Metabolism in a Fixed-Bed Bioreactor
- Modified Solution Approach in Modeling of Separation of Gaseous Hydrocarbons using Nanostructure MFI Zeolite Membranes with M-S Formulation and DSL and IAST Assumptions
- Segregated Model of Adherent Cell Culture in a Fixed-Bed Bioreactor
- Optimization of Cellulase Production Using Agricultural Wastes by Artificial Neural Network and Genetic Algorithm
- CFD Multifluid Simulation of Spouted Beds with and without Internal Draft Tubes
- Modeling of Urea Release from Briquettes Using Semi infinite and Shrinking Core Models
- Modeling and Optimization of Process Parameters by Taguchi Method: Degradation of Phenolic Compounds by UV/H2O2/TiO2 Process
- Hydrodynamic Investigation in an Annular Reactor with Mixing Time and Residence Time Distribution: Flow Rates Estimation with the Gauss-Newton Gradient Technique
- Prediction and Validation of Carbon Dioxide Gas Solubility in Ionic Liquids at T=298K and Atmospheric Pressure using Quantum Chemical Approach
- Computational Fluid Dynamics Characterization of a Bioreactor Mixing Device for the Animal Cell Culture
- CFD Modelling of Global Mixing Parameters in a Peirce-Smith Converter with Comparison to Physical Modelling
- Pseudo-Dynamic Modeling to Evaluate a Remote Gas-to-Liquids Process
- Fast Pyrolysis of Biomass in Bubbling Fluidized Bed: A Model Study
- Numerical Analysis and Optimization of Oxygen Separation from Air via Pressure Swing Adsorption
- Comparing Usage of Temperature Control and Composition Control for Reactive Distillation Column in Methyl Ester Production
- Study of the Particle Separation Performance of a Dust-settling Hopper
- Review
- A Survey of Data Treatment Techniques for Soft Sensor Design
- Inorganic Membranes for Hydrogen Production from the Water-Gas Shift Reaction: Materials, Reactor Design, and Simulation
- Short Communication
- A Note on a Double Temperature-Cascade Control Strategy for Distillation Columns
Artikel in diesem Heft
- Article
- Controllability of Distillation Sequences for the Separation of Ternary Mixture
- Model Order Reduction and the Heat Transfer Modelling of a Heat Exchanger by Using Artificial Neural Approach
- Polyhedral Particles Hopper Flowrate Predictions using Discrete Element Method
- Microfluidics of Nanodrug Delivery: Effect of Reynolds Number Ratio and Particle Size
- CFD Simulation of Water Gas Shift Membrane Reactor--Pressure Effects on the Performance of the Reactor
- Simulation of an Industrial Linear Low Density Polyethylene Plant
- Wet Gas Measurement with Slotted Orifice Meter--Effect of Geometry of Slots and Pressure
- Modeling of a Fixed-Bed Reactor for the Production of Phthalic Anhydride
- Nonlinear Modeling for the Degradation of Aqueous Azo Dyes by Combined Advanced Oxidation Processes Using Artificial Neural Networks
- Selection of Suitable Turbulence Models for Numerical Modelling of Hydrocyclones
- A Hybrid Model of Solvent Hehydratic Distillation Column Based on Mechanism and LS-SVM
- Heterogeneous Model of the Process of Clavulanic Acid Purification by Ionic Exchange in a Fixed-Bed Column
- Coarse-Grained Molecular Dynamics Simulation of Lysozyme Protein Crystals
- Coupling Swelling and Water Retention Processes in Compacted Bentonite
- Adaptive Feedback Linearization Control of SISO Nonlinear Processes Using a Self-Generating Neural Network-Based Approach
- Solid-Liquid Equilibrium of Xylose in Water and Ethanol/Water Mixture
- Simulation of Hydrodesulfurization Trickle Bed Reactor
- Modeling Traffic-Emitted Ultrafine Particle Concentration and Intake Fraction in Corpus Christi, Texas
- Optimum Acetone and Ethanol Extraction of Polyphenols from Pinus caribaea Bark: Maximizing Tannin Content Using Response Surface Methodology
- Modeling of Thin Layer Drying of Banana (Nendran Spp) under Microwave, Convective and Combined Microwave-Convective Processes
- Structured Model of VERO Cells Metabolism in a Fixed-Bed Bioreactor
- Modified Solution Approach in Modeling of Separation of Gaseous Hydrocarbons using Nanostructure MFI Zeolite Membranes with M-S Formulation and DSL and IAST Assumptions
- Segregated Model of Adherent Cell Culture in a Fixed-Bed Bioreactor
- Optimization of Cellulase Production Using Agricultural Wastes by Artificial Neural Network and Genetic Algorithm
- CFD Multifluid Simulation of Spouted Beds with and without Internal Draft Tubes
- Modeling of Urea Release from Briquettes Using Semi infinite and Shrinking Core Models
- Modeling and Optimization of Process Parameters by Taguchi Method: Degradation of Phenolic Compounds by UV/H2O2/TiO2 Process
- Hydrodynamic Investigation in an Annular Reactor with Mixing Time and Residence Time Distribution: Flow Rates Estimation with the Gauss-Newton Gradient Technique
- Prediction and Validation of Carbon Dioxide Gas Solubility in Ionic Liquids at T=298K and Atmospheric Pressure using Quantum Chemical Approach
- Computational Fluid Dynamics Characterization of a Bioreactor Mixing Device for the Animal Cell Culture
- CFD Modelling of Global Mixing Parameters in a Peirce-Smith Converter with Comparison to Physical Modelling
- Pseudo-Dynamic Modeling to Evaluate a Remote Gas-to-Liquids Process
- Fast Pyrolysis of Biomass in Bubbling Fluidized Bed: A Model Study
- Numerical Analysis and Optimization of Oxygen Separation from Air via Pressure Swing Adsorption
- Comparing Usage of Temperature Control and Composition Control for Reactive Distillation Column in Methyl Ester Production
- Study of the Particle Separation Performance of a Dust-settling Hopper
- Review
- A Survey of Data Treatment Techniques for Soft Sensor Design
- Inorganic Membranes for Hydrogen Production from the Water-Gas Shift Reaction: Materials, Reactor Design, and Simulation
- Short Communication
- A Note on a Double Temperature-Cascade Control Strategy for Distillation Columns
