Practical characterization and modeling method for macroscopic gas–solid flow in circulating fluidized bed
Ritvanen, Jouni; Chechurin, Yegor; Hyppänen, Timo (2020-11-21)
Post-print / Final draft
Ritvanen, Jouni
Chechurin, Yegor
Hyppänen, Timo
21.11.2020
Chemical Engineering Journal
Elsevier
School of Energy Systems
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2020112492762
https://urn.fi/URN:NBN:fi-fe2020112492762
Tiivistelmä
Fluidized beds are common in the energy and chemical industries because they provide a good environment for heterogeneous reactions owing to the combination of mixing and multiphase flow hydrodynamics. The hydrodynamics of gas–solid suspensions in fluidized beds is extremely complicated and requires accurate study. A wide range of simulation approaches have been used in fluidized bed design and operational studies, but it is still not clear how the phase interaction should be treated. In this study, a practical characterization method and modeling tool for gas–solid flows are presented, along with a definition of the phase interaction. In this method, the phase interaction is derived for a real solid material with specific particle size, shape and density distributions. In addition, a macroscopic 1D modeling tool for gas–solid flow that is capable of practical stationary and transient simulations is presented. This tool solves the governing equation for the solid-phase momentum and provides physical predictions for transient gas–solid flow investigations. The proposed characterization method and modeling tool are validated against experimental data.
Lähdeviite
Ritvanen, J., Chechurin, Y., Hyppänen, T., (2020) Practical characterization and modeling method for macroscopic gas–solid flow in circulating fluidized bed, Chemical Engineering Journal, 127819, DOI: 10.1016/j.cej.2020.127819.
Alkuperäinen verkko-osoite
https://www.sciencedirect.com/science/article/abs/pii/S1385894720339309?via%3DihubKokoelmat
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