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  4. Discrete element study of aerogel particle dynamics in a spouted bed apparatus
 
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Discrete element study of aerogel particle dynamics in a spouted bed apparatus

Publikationstyp
Journal Article
Date Issued
2012-07-09
Sprache
English
Author(s)
Antonyuk, Sergiy  
Heinrich, Stefan  
Smirnova, Irina  orcid-logo
Institut
Feststoffverfahrenstechnik und Partikeltechnologie V-3  
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/12542
Journal
Chemical engineering & technology  
Volume
35
Issue
8
Start Page
1427
End Page
1434
Citation
Chemical Engineering and Technology 35 (8): 1427-1434 (2012-08-01)
Publisher DOI
10.1002/ceat.201200083
Scopus ID
2-s2.0-84864297414
Publisher
Wiley-VCH Verl.-Ges.
A novel process for fluidization and coating of light spherical aerogel particles in a spouted bed apparatus was numerically studied using discrete particle model. This model describes the interactions between the particles, particles and apparatus walls, as well as between the particles and gas which take place on the microlevel and can be used in the multiscale modeling approach to study the entire production process. The experimentally obtained mechanical properties of aerogel particles, like stiffness, modulus of elasticity, coefficients of friction and restitution were used as material parameters in the performed simulations. The influence of the increasing density and decreasing restitution coefficient of the particles due to the growth of the coating layer on the fluidized bed dynamics regarding the impact forces, collision rates, velocity distributions and rotation of particles was analyzed.
Subjects
Aerogel
Computational Fluid Dynamics
Discrete Element Method
Spouted bed
DDC Class
600: Technik
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