Hydrodynamic and thermal modelling of a high temperature spouted bed reactor with a draft tube

1990 ◽  
Vol 68 (2) ◽  
pp. 302-311 ◽  
Author(s):  
Rudolf K. Stocker ◽  
John H. Eng ◽  
Leo A. Behie
Keyword(s):  
High Temperature ◽  
Draft Tube ◽  
Thermal Modelling ◽  
Spouted Bed

scholarly journals CFD-DEM Simulation of Spouted Bed Dynamics under High Temperature with an Adhesive Model

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2276
Author(s):  
Zhao Chen ◽  
Lin Jiang ◽  
Mofan Qiu ◽  
Meng Chen ◽  
Rongzheng Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Particle Surface ◽  
Particle Collision ◽  
Gas Velocity ◽  
Spouted Bed ◽  
Dem Simulation ◽  
Linear Spring ◽  
Adhesion Model ◽  
Adhesive Model ◽  
Damping Model

Particle adhesion is of great importance to coating processes due to its effect on fluidization. Currently, Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) has become a powerful tool for the study of multiphase flows. Various contact force models have also been proposed. However, particle dynamics in high temperature will be changed with particle surface properties changing. In view of this, an adhesion model is developed based on approaching-loading-unloading-detaching idea and particle surface change under high temperature in this paper. Analyses of the adhesion model are given through two particle collision process and validated by experiment. Effects of inlet gas velocity and adhesion intensity on spouted bed dynamics are investigated. It is concluded that fluidization cycle will be accelerated by adhesion, and intensity of fluidization will be marginally enhanced by slight adhesion. Within a certain range, increasing inlet gas velocity will lead to strong intensity of particle motion. A parameter sensitivity comparison of linear spring-damping model and Hertz-Mindlin Model is given, which shows in case of small overlaps, forces calculated by both models have little distinction, diametrically opposed to that of large overlaps.

scholarly journals Minimum spoutable gas flow rate in side-outlet spouted bed with inner draft-tube.

1981 ◽  
Vol 14 (6) ◽  
pp. 462-466 ◽  
Author(s):  
HIROTSUGU HATTORI ◽  
KAZUYUKI TANAKA ◽  
KUNIHIKO TAKEDA
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Draft Tube ◽  
Gas Flow Rate ◽  
Spouted Bed ◽  
Side Outlet

Cycle time in draft tube conical spouted bed dryer for sludge from paper industry

2013 ◽  
Vol 100 ◽  
pp. 413-420 ◽  
Author(s):  
María J. San José ◽  
Sonia Alvarez ◽  
Francisco J. Peñas ◽  
Iris García
Keyword(s):  
Cycle Time ◽  
Draft Tube ◽  
Paper Industry ◽  
Spouted Bed

Drying of Agricultural Grains in a Multiple Porous Draft Tube Spouted Bed

2017 ◽  
Vol 204 (8) ◽  
pp. 942-950 ◽  
Author(s):  
S. Rajashekhara ◽  
D. V. R. Murthy
Keyword(s):  
Draft Tube ◽  
Spouted Bed

Modelling batch drying of sand in a draft-tube conical spouted bed

2011 ◽  
Vol 89 (10) ◽  
pp. 2054-2062 ◽  
Author(s):  
Martin Olazar ◽  
Gartzen Lopez ◽  
Haritz Altzibar ◽  
Javier Bilbao
Keyword(s):  
Draft Tube ◽  
Spouted Bed

Drying of Porous Solid Particles in Various-Shaped Spouted Bed with a Draft-Tube

2001 ◽  
Vol 34 (12) ◽  
pp. 1549-1552 ◽  
Author(s):  
HIROTSUGU HATTORI ◽  
TAKAYUKI MORIMOTO ◽  
MASAHIRO YAMAGUCHI ◽  
TOMOMI ONEZAWA ◽  
CHIKAO ARAI
Keyword(s):  
Draft Tube ◽  
Solid Particles ◽  
Porous Solid ◽  
Spouted Bed

Thermal modelling of the high temperature treatment of wood based on Luikov's approach

2006 ◽  
Vol 30 (9) ◽  
pp. 699-711 ◽  
Author(s):  
Ramdane Younsi ◽  
Duygu Kocaefe ◽  
Sandor Poncsak ◽  
Yaşar Kocaefe
Keyword(s):  
High Temperature ◽  
Temperature Treatment ◽  
Thermal Modelling ◽  
High Temperature Treatment

Denitrification Under Aerobic Condition in Draft Tube Spouted Bed Reactor

2017 ◽  
pp. 85-92
Author(s):  
Keshava Joshi ◽  
N Lokeshwari ◽  
G. Srinikethan ◽  
M. B. Saidutta
Keyword(s):  
Draft Tube ◽  
Aerobic Condition ◽  
Spouted Bed

Novel Porous Draft Tube To Manipulate Fluid Throughput from Spout to Annulus in a Spouted Bed

2020 ◽  
Vol 59 (7) ◽  
pp. 3229-3237
Author(s):  
Palash Kumar Mollick ◽  
Aniruddha Bhalchandra Pandit ◽  
Tanumoy Mukherjee ◽  
Pallippattu Krishnan Vijayan
Keyword(s):  
Draft Tube ◽  
Spouted Bed
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