CPFD Flow Pattern Simulation in Downer Reactors
Researchers in Canada use an early version of Barracuda Virtual Reactor to predict local solid densification and asymmetric “wavy flows” in downer reactors.
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CPFD Simulation of Circulating Fluidized Bed Risers
This study by researchers at the Hamburg University of Technology and Tsinghua University investigated the applicability of CPFD for simulating flows in CFB risers for Geldart group A and B particles for low and high solids fluxes.
CFD simulations for Prediction of Scaling Effects in Pharmaceutical Fluidized Bed Processors at Three Scales
Experimental operation of three fluidized bed processors is compared with CFD simulation results by Parker, Williams, and Thibault, CPFD Software, and LaMarche, Chen, and Stamato, Bristol-Myers Squibb Company.
Eulerian–Lagrangian Method for Three-Dimensional Simulation of Fluidized Bed Coal Gasification
In this paper, a comprehensive three-dimensional numerical model has been developed to simulate the coal gasification in a fluidized bed gasifier using a multiphase particle-in-cell (MP-PIC) method, and the formation of flow patterns, profiles of particle species and gas compositions, distributions of reaction rates and consumption of carbon mass were investigated under different operating conditions.
3-D Full-Loop Simulation of an Industrial-Scale Circulating Fluidized-Bed Boiler
This paper demonstrates the advantages of the energy-minimization multiscale (EMMS) model compared to a conventional model for a full-loop industrial-scaled CFB boiler, including successfully predicting the pressure profile of the furnace.
Validation and Application of Computational Modeling to Reduce Erosion in a Circulating Fluidized Bed Boiler
This paper, by authors at CPFD Software and Biomasse Italia, describes the optimization of a CFB boiler in order to minimize erosion considering overall performance.
Simulation on Gasification of Forestry Residues in Fluidized Beds by Eulerian–Lagrangian Approach
Researchers in China and in England developed a comprehensive three-dimensional numerical model is developed to simulate forestry residues gasification in a fluidized bed reactor using a Eulerian–Lagrangian approach; the model is in good agreement with experimental data.
Characterization of Fluidized Bed Layer Inversion in a 191-mm-Diameter Column Using Both Experimental and CPFD Approaches
Quantitative and qualitative predictions of layer inversion and binary component segregation at different liquid velocities and of chaotic circulation patterns for a glass bead-water fluidized bed were carried out by Barracuda Virtual Reactor and were shown to be in reasonable agreement with experimental observations.
Inclusion of Collisional Return-To-Isotropy in the MP-PIC Method
O’Rourke and Snider document a new method for including collisional return-to-isotropy in particle velocity distributions calculated by the MP-PIC method for numerical simulation of particle/fluid flows.
Bubble characterization in a fluidized bed by means of optical probes
The objective of this paper is to show and discuss the applicability of optical probes to measure the bubble size and bubble rise velocity in fluidized beds.